Methionine

Methionine is a sulfur-containing essential amino acid used as a cosmetic ingredient. Formulators include it to support water binding and in-formula antioxidant activity that aids product stability without a heavy feel.
Like this ingredient?

Ingredient Snapshot

Overview
An amino acid that helps skin hold moisture and stabilizes formulas.
Category
Hydration, Skin Conditioning, Antioxidant
Type
Humectant

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Improves moisture retention for a supple feel, and provides antioxidant support within formulas that may indirectly protect products and skin from oxidation.

Uses In Skincare & Cosmetics

Included in hydrating serums, gel moisturizers, and essences to boost water content. Also used in sheet masks and toners as a light replenishing step.

Comedogenic Rating

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

Safety

Usually well tolerated and water-soluble, with low irritation likelihood. Rare sensitivity can occur; discontinue if stinging or redness appears.

Is Methionine a Good Ingredient?

It acts as a water-binding amino acid and offers antioxidant support with generally good tolerability, which is enough for Good. It isn't a powerhouse active, but it reliably contributes to hydration and stability.

Products with Methionine

Related Ingredients