amino acid

Antioxidants , Skin-Identical/Repairing Ingredients

Fundamental constituents of all proteins found in the body, such as: alanine, arginine, asparagine, aspartic acid, cysteine, cystine, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, and valine. Some of these amino acids can be synthesized by the body; others (known as essential amino acids) must be obtained from protein in the diet.

In skincare products, amino acids act as water-binding agents, and some have antioxidant properties and wound-healing abilities as well. [1] Amino acids can be combined with other ingredients that have cell communicating ability to work in unison to fight wrinkles and other signs of aging. [2]

References Cited:

  1. Angele M, Nitsch S, Hatz R, Angele P, Hernandez-Richter T, Wichmann M, Chaudry I, Schildberg F. L-arginine: a unique amino acid for improving depressed wound immune function following hemorrhage. Eur Surg Res. 2002 ;34(1-2):53-60.
  2. Auriol, D, Redziniak Libragen G, Schweikert K, Lefevre F. Collagens I and III, and Elastin Activation for Anti-aging. Cosm & Toil. 2014; 129(2) 70.
See natural moisturizing factor (NMF) , protein

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Paula Begoun is the best-selling author of 20 books on skin care and makeup. She is known worldwide as the Cosmetics Cop and creator of Paula's Choice. Paula's expertise has led to hundreds of appearances on national and international television including:

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The Paula's Choice Research Team is dedicated to busting beauty myths and helping you solve your skincare frustrations with research-supported expert advice—so you'll have the facts you need to take the best possible care of your skin.

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