Glycerin
Humectant
1. INCI e CAS
INCI: Glycerin · CAS: 56-81-5
2. Ruolo nella formula
The reference uses glycerin as a polyol humectant across washes, gels, and emulsions. Treat the percentage as development guidance.
3. Livelli d'uso tipici (guida di formulazione)
- For gels and serums, use 3–8% for the formula.
- The creams use-level reference is 2–5% in this reference.
- The rinse-off use-level reference is 2–4% for the formula.
The water phase is the addition point for Glycerin; a separate melt is unnecessary.
4. Fonti normative e conformità globale
- If Glycerin appears in CosIng, its entry is informational and does not approve a specific grade or finished cosmetic.
- For cosmetics placed on the EU market, Regulation (EC) No 1223/2009 requires the final cosmetic with Glycerin to undergo a safety assessment as part of the finished cosmetic's safety documentation.
- Check the supplier's technical information for the Glycerin grade and confirm the relevant market filing list.
5. Sicurezza e valutazione del rischio
This formulation note gives a cosmetic-use reference level; it does not establish drug approval or OTC-monograph status and the final formula should undergo patch and stability assessment.
6. Stabilità e packaging
For bulk storage, avoid warmth and direct sun and keep the container closed; if the formula is oxidation-sensitive, an airless or pump format may be considered; use batch testing to verify stability and package compatibility.
7. Linguaggio dei claim (cosa dire / cosa non dire)
- The recorded cosmetic positioning for Glycerin highlights humectant function.
- The ingredient record cannot verify claims of drug activity, a clinical cure, or an undocumented product certification.
- The documented facts for Glycerin cannot establish skin whitening, acne care, sweat reduction, sun protection, or hair-growth outcomes.










































