Glycerin
Also known as: Glycerol, Glycerine, INCI: Glycerin
A humectant that draws moisture into skin, improving hydration and barrier function.
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Get the appWhat it does
Glycerin is a small-molecule humectant that attracts water from the environment and deeper skin layers to the stratum corneum, enhancing skin hydration. It also supports the skin barrier and provides a smooth, conditioning feel in formulas. Widely used across all product types due to its efficacy and safety profile.
Benefits
- Boosts skin hydration and plumpness
- Strengthens skin barrier function
- Non-irritating and suitable for sensitive skin
- Improves skin softness and texture
- Enhances penetration of other actives
Who it suits
- All skin types
- Dry and dehydrated skin
- Sensitive and reactive skin
- Barrier-compromised skin
How to use
Use in serums, creams, and toners at 3-5% for hydration; higher concentrations (5-10%) in intensive treatments. Apply to damp skin for optimal humectant effect, optionally seal with an occlusive.
Pairs well with
Hyaluronic acid, Niacinamide, Ceramides, Squalane
Be careful pairing with
none notable
Safety & cautions
Glycerin is very safe; minimal irritation risk even at high concentrations. In very dry climates with low humidity, extremely high concentrations may theoretically draw water from skin; use sensibly in humid conditions or occlude with other ingredients.
Educational information, not medical advice. Concentration and formulation change how an ingredient behaves.