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Proline is an amino acid that is essential for health and can be found in a variety of food sources. Amino acids can effectively penetrate the skin due to their low molecular weight. Arginine can function as an antioxidant, a humectant and forms part of the skins own natural moisturising factor.
Proline is also used in anti-ageing preparations due to its ability to increase collagen synthesis in the skin.
Amino acids can also function as anti-statics in hair care formulations due to their affinity for the surface of the hair.
Up to 3% Add to the aqueous phase below 55°C
pH 3 - 10