Glycerin

What is glycerin? Glycerin is an essential ingredient for keeping moisture in the skin’s outer layer. Applying it topically can help compensate for low levels. In leave-on skincare products, concentrations are usually 3-5%, and shouldn’t exceed 7% for regular use.

How to use it

Glycerin for skin isn’t used as an active ingredient on its own, but is added as a supporting one in formulations.

Suitable for

All skin types.

Things to know

Compatible with all active ingredients.

Evidence

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Ingredient Overview

INCI name Glycerin

Function Denaturant, hair conditioning, humectant, oral care, skin protecting, solvent, viscosity controlling, perfuming, fragrance, skin conditioning - humectant

CAS number 56-81-5

Chemical formula CH₂OH-CHOH-CH₂OH

Common use Face care, body care, hair care, makeup

Glycerin alternatives

FAQ

1. Is glycerin a good skincare ingredient? What is glycerin used for?

Glycerin is a basic ingredient that isn't used as an active ingredient. However, it attracts and retains moisture, which makes it a good supporting hydrating ingredient.

2. Is glycerin good for older skin?

With age, the skin loses its ability to retain moisture, which makes wrinkles more visible. That's why it's essential to use hydrating ingredients in skincare.

3. What not to mix with glycerin for skin?

Glycerin has no antagonists. What does glycerin do for skin, exactly? It's a gentle ingredient that works well with other ingredients in a product formula.