Snapshot
- Overview
- A collagen-related amino acid that boosts moisture for plumper skin.
- Category
- Hydration, Skin Conditioning
- Type
- Humectant
Hydroxyproline
Hydroxyproline is an amino acid derivative associated with collagen that's incorporated into skincare as a conditioning humectant. It increases water binding and surface suppleness, improving slip and comfort in hydrating formulas.
Like this ingredient?
Our take
Is Hydroxyproline a Good Ingredient?
Rated Good because it's a dependable humectant with strong tolerance and consistent moisturizing benefits. The data mainly supports hydration outcomes rather than structural anti-aging claims, which is why it stops at Good.
What it does
Skin Benefits
Boosts moisture retention so skin feels plumper and smoother. Improves softness and skin comfort without heaviness.
Where you'll find it
Uses in Skincare & Cosmetics
Included in hydrating serums, essences, sheet masks, and daily moisturizers to support dewy hydration routines.
Before you use it
Safety
Generally low irritation risk and suitable for most skin types. Very sensitive users may notice brief tingling; discontinue if persistent.
Products with Hydroxyproline
