Glycine

Glycine is a simple amino acid found in proteins and incorporated into skin and hair care formulations. It's added to attract water, support pH balance in mixtures, and improve sensory feel in hydrators, toners, cleansers, and leave-on products.
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Ingredient Snapshot

Overview
An amino acid that draws in moisture for plumper, more comfortable skin.
Category
Hydration, Skin Conditioning
Type
Humectant

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Boosts surface hydration for a plumper, more comfortable look. Can reduce tightness after cleansing and support a smoother feel.

Uses In Skincare & Cosmetics

Common in hydrating toners, moisturizers, and essences to reinforce water balance. Also found in shampoos and conditioners for improved slip and manageability.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Generally considered low risk for irritation at typical cosmetic levels. Those with compromised skin barriers may experience transient stinging. No special regulatory restrictions are commonly noted.

Is Glycine a Good Ingredient?

It's Good because this well-tolerated amino acid works reliably as a humectant and buffer, providing hydration support with very low irritation potential across most formulas and skin types.

Products with Glycine

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