Serine

Serine is a naturally occurring amino acid found in skin's natural moisturizing factors and used in cosmetics. It draws and holds water to improve suppleness and supports other humectants within hydration systems.
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Ingredient Snapshot

Overview
Serine is an amino acid that draws water in for plumper skin.
Category
Hydration, Skin Conditioning, Barrier Support
Type
Humectant

Ingredient Ratings

Overall Rating

Great

Comedogenic Risk

None

Skin Benefits

Replenishes elements of the skin's natural moisturizing factor for a plumper, more elastic feel, and helps reduce the sensation of tightness from dehydration.

Uses In Skincare & Cosmetics

Common in moisturizers, toners, and essences to boost everyday hydration without heaviness.

Comedogenic Rating

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

Safety

Low likelihood of irritation or sensitization at typical cosmetic levels. Suitable for most skin types, including sensitive.

Is Serine a Good Ingredient?

Great, because it's an endogenous component of skin's own natural moisturizing factor, which gives it dependable performance, broad compatibility, and a very low irritation risk. That combination of proven mechanism and consistent, low-risk performance is what pushes it past Good.

Products with Serine

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