Ingredient
Threonine
L-Threonine
2-Amino-3-hydroxybutanoic acid
What it is
An essential amino acid and a component of the skin's natural moisturizing factor (NMF).
How it works
As part of the NMF amino acid pool, it helps bind water in the stratum corneum and supports skin hydration.
What it does
Humectant
Skin conditioning
Antistatic
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.