Glycerin
Humectant
1. INCI & CAS
INCI: Glycerin · CAS: 56-81-5
2. Role in the formula
Cosmetic washes, gels, and emulsions use glycerin in a polyol-humectant role; the listed level is for formulation development.
3. Typical use levels (formulation guide)
- The level shown for gels and serums is 3–8% as a formulation guide.
- Creams: 2–5% in this reference.
- For rinse-off, use 2–4% as a formulation guide.
The water phase is the addition point for Glycerin; a separate melt is unnecessary.
4. Regulatory sources & global compliance
- A CosIng entry naming Glycerin does not by itself approve the purchased grade or complete cosmetic.
- Before EU placement, Regulation (EC) No 1223/2009 requires the final cosmetic with Glycerin to undergo a safety assessment for the specific product as it will be marketed.
- Review the supplier TDS for the received Glycerin grade, together with the target market's current filing requirements.
5. Safety & risk assessment
This formulation note gives a cosmetic-use reference level; it makes no claim of drug or OTC authorization so the finished cosmetic should receive patch and stability checks.
6. Stability & packaging
Keep bulk supplies closed, cool, and protected from sunlight; choose a package with oxidation sensitivity in view; confirm final stability and pack compatibility on a representative batch.
7. Claims language (Do / Don’t)
- The recorded cosmetic positioning for Glycerin highlights humectant function.
- The listed information does not support claims of drug action or cure, or a product certification outside the supporting records.
- This guide to Glycerin should not be cited in support of a skin-lightening result, acne treatment, antiperspirant action, sunscreen efficacy, or hair growth.










































