Glycerin
Humectant
1. INCI & CAS
INCI: Glycerin · CAS: 56-81-5
2. Role in the formula
In cosmetic gels, emulsions, and washes, glycerin functions as a polyol humectant; its listed level is a guide.
3. Typical use levels (formulation guide)
- Gels and serums: 3–8% in this reference.
- The creams use-level reference is 2–5% for the formula.
- Rinse-off: 2–4% for the formula.
Incorporate Glycerin in the water phase without a separate melt step.
4. Regulatory sources & global compliance
- CosIng may identify Glycerin as an ingredient, but its entry does not approve a material grade or finished formula.
- The EU Cosmetics Regulation (EC) No 1223/2009 requires a safety assessment of the finished cosmetic containing Glycerin for the product in its final form.
- Confirm the received Glycerin grade against supplier documentation, then verify the intended market's filing requirements.
5. Safety & risk assessment
The concentration shown is guidance for cosmetic formulation; it provides no evidence that a drug or OTC monograph applies with patch response and finished-product stability still to be verified.
6. Stability & packaging
Keep bulk supplies closed, cool, and protected from sunlight; match the pack choice to the system's oxidation risk; check the finished batch's stability and package compatibility.
7. Claims language (Do / Don’t)
- The cosmetic formulation concept for Glycerin centers on humectant function.
- The development record does not support a drug effect, a clinical cure, or certification status not established for the SKU.
- The ingredient record for Glycerin provides no basis for whitening effects, acne treatment, antiperspirant performance, sunscreen protection, or hair growth.










































