PubMed Hyaluronic Acid Penetration Raman Study
At a glance
This source can support the distinction between measured penetration and absorbed-feeling language. It cannot support a general claim that warmth increases absorption.




What this source is
This resource entry is a citation node. 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
- Measurement matters for penetration claims.
- Perceived absorption and measured penetration are different.
- Study context cannot be generalized to all body-care products.
What evidence cannot support
- Warming changes measured absorption.
- Better penetration from warmed lotion.
- Pregnancy or baby benefit claims.
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.