Quick answer
An essential amino acid that provides hydrating benefits; Most often found in blends with other skin care ingredients; Part of peptides that contribute to visibly firmer skin; In the body, threonine plays a signaling role to maintain health Key benefits: Anti-Aging, Hydration.
Threonine
Updated
2-Amino-3-hydroxybutanoic acid
Purpose
An essential amino acid known to do more in the body than on skin, with its benefit for skin mostly being about hydration and promoting firmer skin
Rating
GOOD
Category
Antioxidant, Humectant
INCI Purpose
ANTISTATIC, HAIR CONDITIONING, HAIR WAVING OR STRAIGHTENING
Benefits
Alternative Names
At a Glance
An essential amino acid that provides hydrating benefits
Most often found in blends with other skin care ingredients
Part of peptides that contribute to visibly firmer skin
In the body, threonine plays a signaling role to maintain health
Article
Threonine is an amino acid that can provide anti-aging and hydration benefits as a skin care ingredient. It is categorized as an essential amino acid because the body cannot make it on its own, so threonine must be obtained from food and/or supplements.
It’s part of a peptide mix (peptides are composed of amino acids) that play a role in contributing to skin’s firm, smooth appearance.
In the body, threonine plays a signaling role with other substances, working in concern to help maintain health. Animal proteins, seeds, and nuts are good dietary sources of this amino acid.
Usage levels of threonine in skin care range from 0.00003%–0.2% in leave-on products, with rinse-off formulas containing up to 0.5%.
See: Amino Acids
References