<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:27eb2d91-d67f-4b44-aa77-6f073a7e780c,g:886296ab-edb0-44f0-96da-2d5ef2d3ff3e-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:skin="http://hydrafacial.com/20250930" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://hydrafacial.com/20250930">
  <xs:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="skin-20250930_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="skin-20250930_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="skin-20250930_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="skin-20250930_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://hydrafacial.com/role/Cover">
        <link:definition>0000001 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDBALANCESHEETS" roleURI="http://hydrafacial.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS">
        <link:definition>9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" roleURI="http://hydrafacial.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical">
        <link:definition>9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" roleURI="http://hydrafacial.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS">
        <link:definition>9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" roleURI="http://hydrafacial.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY">
        <link:definition>9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS&#8217; EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" roleURI="http://hydrafacial.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS">
        <link:definition>9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DescriptionofBusiness" roleURI="http://hydrafacial.com/role/DescriptionofBusiness">
        <link:definition>9952156 - Disclosure - Description of Business</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetComponents" roleURI="http://hydrafacial.com/role/BalanceSheetComponents">
        <link:definition>9952157 - Disclosure - Balance Sheet Components</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyandEquipmentnet" roleURI="http://hydrafacial.com/role/PropertyandEquipmentnet">
        <link:definition>9952158 - Disclosure - Property and Equipment, net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsnet" roleURI="http://hydrafacial.com/role/GoodwillandIntangibleAssetsnet">
        <link:definition>9952159 - Disclosure - Goodwill and Intangible Assets, net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebt" roleURI="http://hydrafacial.com/role/LongTermDebt">
        <link:definition>9952160 - Disclosure - Long-Term Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingencies" roleURI="http://hydrafacial.com/role/CommitmentsandContingencies">
        <link:definition>9952161 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactions" roleURI="http://hydrafacial.com/role/RelatedPartyTransactions">
        <link:definition>9952162 - Disclosure - Related-Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquity" roleURI="http://hydrafacial.com/role/StockholdersEquity">
        <link:definition>9952163 - Disclosure - Stockholders&#8217; Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://hydrafacial.com/role/FairValueMeasurements">
        <link:definition>9952164 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Revenue" roleURI="http://hydrafacial.com/role/Revenue">
        <link:definition>9952165 - Disclosure - Revenue</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedCompensation" roleURI="http://hydrafacial.com/role/ShareBasedCompensation">
        <link:definition>9952166 - Disclosure - Share-Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://hydrafacial.com/role/IncomeTaxes">
        <link:definition>9952167 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossAttributabletoCommonStockholders" roleURI="http://hydrafacial.com/role/NetLossAttributabletoCommonStockholders">
        <link:definition>9952168 - Disclosure - Net Loss Attributable to Common Stockholders</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformation" roleURI="http://hydrafacial.com/role/SegmentInformation">
        <link:definition>9952169 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NewAccountingPronouncements" roleURI="http://hydrafacial.com/role/NewAccountingPronouncements">
        <link:definition>9952170 - Disclosure - New Accounting Pronouncements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DescriptionofBusinessPolicies" roleURI="http://hydrafacial.com/role/DescriptionofBusinessPolicies">
        <link:definition>9955511 - Disclosure - Description of Business (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetComponentsTables" roleURI="http://hydrafacial.com/role/BalanceSheetComponentsTables">
        <link:definition>9955512 - Disclosure - Balance Sheet Components (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyandEquipmentnetTables" roleURI="http://hydrafacial.com/role/PropertyandEquipmentnetTables">
        <link:definition>9955513 - Disclosure - Property and Equipment, net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsnetTables" roleURI="http://hydrafacial.com/role/GoodwillandIntangibleAssetsnetTables">
        <link:definition>9955514 - Disclosure - Goodwill and Intangible Assets, net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtTables" roleURI="http://hydrafacial.com/role/LongTermDebtTables">
        <link:definition>9955515 - Disclosure - Long-Term Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://hydrafacial.com/role/FairValueMeasurementsTables">
        <link:definition>9955516 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueTables" roleURI="http://hydrafacial.com/role/RevenueTables">
        <link:definition>9955517 - Disclosure - Revenue (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedCompensationTables" roleURI="http://hydrafacial.com/role/ShareBasedCompensationTables">
        <link:definition>9955518 - Disclosure - Share-Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossAttributabletoCommonStockholdersTables" roleURI="http://hydrafacial.com/role/NetLossAttributabletoCommonStockholdersTables">
        <link:definition>9955519 - Disclosure - Net Loss Attributable to Common Stockholders (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationTables" roleURI="http://hydrafacial.com/role/SegmentInformationTables">
        <link:definition>9955520 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DescriptionofBusinessDetails" roleURI="http://hydrafacial.com/role/DescriptionofBusinessDetails">
        <link:definition>9955521 - Disclosure - Description of Business (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetComponentsScheduleofInventoryDetails" roleURI="http://hydrafacial.com/role/BalanceSheetComponentsScheduleofInventoryDetails">
        <link:definition>9955522 - Disclosure - Balance Sheet Components - Schedule of Inventory (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetComponentsScheduleofAccruedPayrollRelatedExpensesDetails" roleURI="http://hydrafacial.com/role/BalanceSheetComponentsScheduleofAccruedPayrollRelatedExpensesDetails">
        <link:definition>9955523 - Disclosure - Balance Sheet Components - Schedule of Accrued Payroll-Related Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetComponentsScheduleofAccruedExpensesDetails" roleURI="http://hydrafacial.com/role/BalanceSheetComponentsScheduleofAccruedExpensesDetails">
        <link:definition>9955524 - Disclosure - Balance Sheet Components - Schedule of Accrued Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetComponentsNarrativeDetails" roleURI="http://hydrafacial.com/role/BalanceSheetComponentsNarrativeDetails">
        <link:definition>9955525 - Disclosure - Balance Sheet Components - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyandEquipmentnetDetails" roleURI="http://hydrafacial.com/role/PropertyandEquipmentnetDetails">
        <link:definition>9955526 - Disclosure - Property and Equipment, net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsnetScheduleofGoodwillDetails" roleURI="http://hydrafacial.com/role/GoodwillandIntangibleAssetsnetScheduleofGoodwillDetails">
        <link:definition>9955527 - Disclosure - Goodwill and Intangible Assets, net - Schedule of Goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsnetScheduleofIntangibleAssetsDetails" roleURI="http://hydrafacial.com/role/GoodwillandIntangibleAssetsnetScheduleofIntangibleAssetsDetails">
        <link:definition>9955528 - Disclosure - Goodwill and Intangible Assets, net - Schedule of Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongtermDebtNarrativeDetails" roleURI="http://hydrafacial.com/role/LongtermDebtNarrativeDetails">
        <link:definition>9955529 - Disclosure - Long-term Debt - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtScheduleofLongtermDebtDetails" roleURI="http://hydrafacial.com/role/LongTermDebtScheduleofLongtermDebtDetails">
        <link:definition>9955530 - Disclosure - Long-Term Debt - Schedule of Long-term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesDetails" roleURI="http://hydrafacial.com/role/CommitmentsandContingenciesDetails">
        <link:definition>9955531 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsDetails" roleURI="http://hydrafacial.com/role/RelatedPartyTransactionsDetails">
        <link:definition>9955532 - Disclosure - Related-Party Transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityDetails" roleURI="http://hydrafacial.com/role/StockholdersEquityDetails">
        <link:definition>9955533 - Disclosure - Stockholders&#8217; Equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsScheduleofassetsandliabilitiesmeasuredatfairvalueonrecurringbasisDetails" roleURI="http://hydrafacial.com/role/FairValueMeasurementsScheduleofassetsandliabilitiesmeasuredatfairvalueonrecurringbasisDetails">
        <link:definition>9955534 - Disclosure - Fair Value Measurements - Schedule of assets and liabilities measured at fair value on recurring basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsNarrativeDetails" roleURI="http://hydrafacial.com/role/FairValueMeasurementsNarrativeDetails">
        <link:definition>9955535 - Disclosure - Fair Value Measurements - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueScheduleofDisaggregationofRevenueDetails" roleURI="http://hydrafacial.com/role/RevenueScheduleofDisaggregationofRevenueDetails">
        <link:definition>9955536 - Disclosure - Revenue - Schedule of Disaggregation of Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueScheduleofNetSalesbyGeographicRegionDetails" roleURI="http://hydrafacial.com/role/RevenueScheduleofNetSalesbyGeographicRegionDetails">
        <link:definition>9955537 - Disclosure - Revenue - Schedule of Net Sales by Geographic Region (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedCompensationScheduleofShareBasedCompensationDetails" roleURI="http://hydrafacial.com/role/ShareBasedCompensationScheduleofShareBasedCompensationDetails">
        <link:definition>9955538 - Disclosure - Share-Based Compensation - Schedule of Share Based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedCompensationNarrativeDetails" roleURI="http://hydrafacial.com/role/ShareBasedCompensationNarrativeDetails">
        <link:definition>9955539 - Disclosure - Share-Based Compensation - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedCompensationScheduleofShareBasedPaymentArrangementActivityDetails" roleURI="http://hydrafacial.com/role/ShareBasedCompensationScheduleofShareBasedPaymentArrangementActivityDetails">
        <link:definition>9955540 - Disclosure - Share-Based Compensation - Schedule of Share-Based Payment Arrangement, Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ShareBasedCompensationScheduleofStockOptionActivityDetails" roleURI="http://hydrafacial.com/role/ShareBasedCompensationScheduleofStockOptionActivityDetails">
        <link:definition>9955541 - Disclosure - Share-Based Compensation - Schedule of Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDetails" roleURI="http://hydrafacial.com/role/IncomeTaxesDetails">
        <link:definition>9955542 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossAttributabletoCommonStockholdersScheduleofBasicandDilutedEarningsPerShareDetails" roleURI="http://hydrafacial.com/role/NetLossAttributabletoCommonStockholdersScheduleofBasicandDilutedEarningsPerShareDetails">
        <link:definition>9955543 - Disclosure - Net Loss Attributable to Common Stockholders - Schedule of Basic and Diluted Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossAttributabletoCommonStockholdersScheduleofAntidilutiveSecuritiesExcludedfromEarningsPerShareComputationDetails" roleURI="http://hydrafacial.com/role/NetLossAttributabletoCommonStockholdersScheduleofAntidilutiveSecuritiesExcludedfromEarningsPerShareComputationDetails">
        <link:definition>9955544 - Disclosure - Net Loss Attributable to Common Stockholders - Schedule of Antidilutive Securities Excluded from Earnings Per Share Computation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationNarrativeDetails" roleURI="http://hydrafacial.com/role/SegmentInformationNarrativeDetails">
        <link:definition>9955545 - Disclosure - Segment Information - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationScheduleofSegmentReportingInformationbySegmentDetails" roleURI="http://hydrafacial.com/role/SegmentInformationScheduleofSegmentReportingInformationbySegmentDetails">
        <link:definition>9955546 - Disclosure - Segment Information - Schedule of Segment Reporting Information, by Segment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="skin_NetEarningsPerShareBasicAndDilutedAbstract" abstract="true" name="NetEarningsPerShareBasicAndDilutedAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="skin_RepurchaseOfConvertibleDebtInConnectionWithExchange" abstract="false" name="RepurchaseOfConvertibleDebtInConnectionWithExchange" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="skin_ScheduleOfEmployeeRelatedLiabilitiesTableTextBlock" abstract="false" name="ScheduleOfEmployeeRelatedLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="skin_HydrafacialMember" abstract="true" name="HydrafacialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_MergerSubIIMember" abstract="true" name="MergerSubIIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_HydrafacialAndSubsidiariesMember" abstract="true" name="HydrafacialAndSubsidiariesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_DepreciablePropertyPlantAndEquipmentMember" abstract="true" name="DepreciablePropertyPlantAndEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_A125ConvertibleSeniorNotesDue2026Member" abstract="true" name="A125ConvertibleSeniorNotesDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_A7.95ConvertibleSeniorSecuredNotesDue2028Member" abstract="true" name="A7.95ConvertibleSeniorSecuredNotesDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_DebtInstrumentAccordionFeatureSettlementPeriod" abstract="false" name="DebtInstrumentAccordionFeatureSettlementPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="skin_DebtInstrumentAccordionFeatureIncreaseLimit" abstract="false" name="DebtInstrumentAccordionFeatureIncreaseLimit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="skin_AmountOfDebtExchanged" abstract="false" name="AmountOfDebtExchanged" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="skin_DebtInstrumentOtherFees" abstract="false" name="DebtInstrumentOtherFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="skin_DebtInstrumentOptionalRedemptionLiquidityConditionsSatisfiedPeriodPriorToMaturityDateThresholdNumberOfTradingDays" abstract="false" name="DebtInstrumentOptionalRedemptionLiquidityConditionsSatisfiedPeriodPriorToMaturityDateThresholdNumberOfTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="skin_SecuritiesClassActionMember" abstract="true" name="SecuritiesClassActionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_LossContingencyNumberOfCompetingMotions" abstract="false" name="LossContingencyNumberOfCompetingMotions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="skin_VesperFoundersMember" abstract="true" name="VesperFoundersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_LCPEdgeHoldcoLLCMember" abstract="true" name="LCPEdgeHoldcoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_PrivatePlacementWarrantsMember" abstract="true" name="PrivatePlacementWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_TheRegistrationRightsAgreementFilingTimeline" abstract="false" name="TheRegistrationRightsAgreementFilingTimeline" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="skin_TheRegistrationRightsAgreementNumberOfDemandsForRegistrationAllowed" abstract="false" name="TheRegistrationRightsAgreementNumberOfDemandsForRegistrationAllowed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="skin_ReverseRecapitalizationContingentConsiderationEquityEarnoutPeriod" abstract="false" name="ReverseRecapitalizationContingentConsiderationEquityEarnoutPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="skin_ReverseRecapitalizationContingentConsiderationEquityEarnoutPeriodStockPriceTrigger" abstract="false" name="ReverseRecapitalizationContingentConsiderationEquityEarnoutPeriodStockPriceTrigger" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="skin_ReverseRecapitalizationContingentConsiderationEquityEarnoutPeriodThresholdBusinessDays" abstract="false" name="ReverseRecapitalizationContingentConsiderationEquityEarnoutPeriodThresholdBusinessDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="skin_ReverseRecapitalizationContingentConsiderationEquityEarnoutPeriodThresholdConsecutiveTradingDays" abstract="false" name="ReverseRecapitalizationContingentConsiderationEquityEarnoutPeriodThresholdConsecutiveTradingDays" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="skin_ReverseRecapitalizationContingentConsiderationEquityCommencementPeriod" abstract="false" name="ReverseRecapitalizationContingentConsiderationEquityCommencementPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="skin_ReverseRecapitalizationRightToDesignateDirectorsPercentageThresholdOneDirector" abstract="false" name="ReverseRecapitalizationRightToDesignateDirectorsPercentageThresholdOneDirector" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="skin_ReverseRecapitalizationRightToDesignateDirectorsPercentageThresholdTwoDirectors" abstract="false" name="ReverseRecapitalizationRightToDesignateDirectorsPercentageThresholdTwoDirectors" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="skin_ReverseRecapitalizationRightToDesignateDirectorsPercentageThresholdThreeDirectors" abstract="false" name="ReverseRecapitalizationRightToDesignateDirectorsPercentageThresholdThreeDirectors" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="skin_ReverseRecapitalizationRightToDesignateOneDirectorOnBoardPercentageThreshold" abstract="false" name="ReverseRecapitalizationRightToDesignateOneDirectorOnBoardPercentageThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="skin_CommonStockVotingRightsVotes" abstract="false" name="CommonStockVotingRightsVotes" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="skin_ClassOfWarrantOrRightExpirationPeriod" abstract="false" name="ClassOfWarrantOrRightExpirationPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="skin_DeliverySystemsMember" abstract="true" name="DeliverySystemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_ConsumablesMember" abstract="true" name="ConsumablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_PersonnelRelatedExpensesMember" abstract="true" name="PersonnelRelatedExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="skin_OtherSegmentItemsMember" abstract="true" name="OtherSegmentItemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
