Ingredient
Lysine HCl
L-Lysine Monohydrochloride
L-Lysine HCl
What it is
The hydrochloride salt of L-lysine, an essential amino acid, used in cosmetics as a humectant and skin-conditioning agent, often alongside other amino acids to mimic the skin's natural moisturizing factor.
How it works
As a small, water-soluble amino acid it helps bind moisture at the skin surface and is a recognized component of the skin's natural moisturizing factor complex.
What it does
Humectant
Skin conditioning
Concerns to know
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Barrier & hydration support
A well-studied humectant or emollient that helps hydrate the skin and support its moisture barrier.