Snapshot
- Overview
- An amino acid that helps skin attract and hold onto moisture.
- Category
- Hydration, Barrier Support, Skin Conditioning
- Type
- Humectant
Valine
Valine is a water-soluble essential branched-chain amino acid used in skincare formulas. It attracts and retains moisture, supports conditioning systems, and improves formula feel; direct topical performance beyond hydration has modest evidence.
Like this ingredient?
Our take
Is Valine a Good Ingredient?
It rates Great because it functions reliably as a humectant, is water-stable, and shows low irritation in typical use. Broader skin effects are limited, but its hydration performance and compatibility across formulas justify the top rating.
What it does
Skin Benefits
Draws water into the stratum corneum for a smoother, more supple appearance, and may support barrier comfort when paired with other humectants.
Where you'll find it
Uses in Skincare & Cosmetics
Common in hydrating serums, gel moisturizers, essences, and sheet masks, and sometimes added to gentle cleansers for a conditioned after-feel.
Before you use it
Safety
Generally well tolerated with low irritation potential in leave-on and rinse-off products. Suitable for most skin types.
Products with Valine
