PMC Stratum Corneum Water Permeability Study
At a glance
This source can support barrier-context discussion. It cannot be converted into a claim that warming body-care products improves barrier function.
What this source is
This resource entry is a reference entry. It explains how an outside source can be used inside the directory without turning it into product endorsement or universal advice.
What evidence can support
- Barrier science context.
- Why body-care pages need measured evidence for skin-function claims.
- Why warmed-product claims require separate testing.
What evidence cannot support
- Improved barrier function from warming.
- Treatment claims.
- Formula compatibility.
Claim status
Allowed: neutral education, evidence limits, user-language clarification, and source-specific context.
Needs evidence: any specific temperature, formula, compatibility, hot-spot, baby, pregnancy, absorption, barrier, or skin outcome claim.
Do not say: universal user suitability, every-formula compatibility, pregnancy suitability, infant-care suitability, source-specific evidence reviewed, FDA approval wording for this warming method, localized overheating assurance, or improved skin outcomes unless a specific reviewed source and test protocol supports that exact statement.
Source citation hub
Source family: Open-access barrier paper.
Best directory route: barrier hydration context, measured permeability wording, and dry-skin routine boundaries.
| Use this source for | Route next to |
|---|---|
| Reader-facing explanation and source context. | P3/P4/P5/P6 or claim-boundary pages when the wording becomes stronger. |
| Support for source-family definitions and conservative editorial wording. | Question pages that include visible evidence limits and related entries. |
Reader question routing
Use this source note with these high-frequency reader entries before making broader claims:
- Older skin and frequent lotion
- Barrier language boundary
- Comfort-Absorption Distinction
- Heat-ready Formula Standard
- Thermal-Formula Sensitivity
- Comfort Application Band
- Comfort-Absorption Distinction
- Cosmetic Stability Testing
- Cosmetic Claims Boundary
- Natural, Clean, and Free-From Claims
- Heat-ready test question
Evidence limits
Can support: source-family context, conservative definitions, public education language, claim-boundary routing, or method-specific evidence limits.
Cannot support: product-specific compatibility, universal suitability, medical outcome wording, warmed-product performance, or formula-level proof unless the linked source directly reviews that exact claim.
Editorial wording rule
Cite this page as a source note, then cite the most specific question, evidence, formula, or claim-boundary page. Do not use one source note to shortcut finished-formula testing, user-audience suitability, or measured skin outcome language.