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Quick answer: Both score equally on our risk model. Glycerin is allowed in the EU and allowed in the US; Sodium Hyaluronate is allowed in the EU and allowed in the US.
| Property | Glycerin | Sodium Hyaluronate |
|---|---|---|
| EU status | Allowed | Allowed |
| US status | Allowed | Allowed |
| Risk level | low | low |
| Banned in | — | — |
| Restricted in | — | — |
| Category | humectant | humectant |
| Where it hides | CeraVe Moisturizing Cream, Neutrogena Hydro Boost Water Gel, Cetaphil Gentle Skin Cleanser | CeraVe Hydrating Facial Cleanser, La Roche-Posay Hyalu B5 Serum, Vichy Mineral 89 Hyaluronic Acid Booster |
Glycerin is a simple polyol (sugar alcohol) that is colorless, odorless, and viscous. It naturally occurs in all animal and vegetable fats and is the backbone of triglyceride molecules. Cosmetic glycerin is typically derived from vegetable oils (plant-based) or as a biodiesel byproduct.
Sodium hyaluronate is the sodium salt form of hyaluronic acid. It has a slightly smaller molecular weight than free hyaluronic acid, which allows better penetration into the outer layers of the stratum corneum. It is the form most commonly used in topical serum formulations.
Glycerin: Glycerin is one of the safest cosmetic ingredients known, with centuries of use. The CIR has repeatedly confirmed its safety. It is non-irritating, non-allergenic, and non-toxic. At very high concentrations in leave-on products (>30%), it can have a dehydrating paradox effect — pulling water from the dermis if the environment is very dry — but this is not a health risk. It is safe for all ages including infants.
Sodium Hyaluronate: Sodium hyaluronate shares the excellent safety profile of hyaluronic acid. It is an endogenous compound, non-allergenic, non-irritating, and thoroughly reviewed as safe by the CIR. No concerns regarding carcinogenicity, hormones, or systemic toxicity exist.
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