Snapshot
- Overview
- A lysine salt that helps balance moisture for smoother-feeling skin.
- Category
- Hydration, Skin Conditioning
- Type
- Humectant
Lysine HCl
Lysine HCl is the hydrochloride salt of the essential amino acid lysine, highly water-soluble for cosmetic formulations. It's used as a humectant and conditioning additive to retain moisture and refine texture, though topical support is considered limited.
Like this ingredient?
Our take
Is Lysine HCl a Good Ingredient?
It's a stable, highly water-soluble amino acid salt that reliably boosts humectancy and texture, which supports a Good rating, though benefits beyond hydration are modest. Evidence for unique skin effects is limited, which keeps it short of a higher rating.
What it does
Skin Benefits
Helps maintain skin's moisture balance and leaves a smoother feel, though evidence for unique topical benefits beyond hydration is limited.
Where you'll find it
Uses in Skincare & Cosmetics
Common in hydrating toners, essences, and moisturizers to boost humectancy and improve skin feel.
Before you use it
Safety
Typically well tolerated with low irritation potential. As an acidic salt, it may cause brief stinging on damaged or very sensitive skin. No common regulatory restrictions noted.
Products with Lysine HCl
