The Basics On Amino Acids
What is Amino Acids?
Fundamental constituents of all proteins found in the body.
What are other names for Amino Acids?
AMINO ACIDS
What is Amino Acids used for?
Of the 21 amino acids available, most are not used in cosmetic formulations with only 4-5 commonly found in skincare formulations. Arginine is the most commonly found amino acid used in cosmetic formulations, being used as an oral care agent1. Cysteine and cysteine HCL are found in formulations being used as antioxidants and reducing agents, and hair straightening agents1. Cystine has been used as a fragrance ingredient Glycine and its calcium and magnesium salts are found in formulations being used as buffering agents and pH adjusters1.
How Amino Acids is classified
Antioxidants, Skin-Replenishing
Recommendations for using Amino Acids during pregnancy and breastfeeding
Limited data suggests no known risk
Amino Acids During Pregnancy
What we know about using Amino Acids while pregnant or breastfeeding
Limited information available.
N/A
General safety info about Amino Acids from CIR
The Cosmetic Ingredient Review Expert Panel reviewed the safety of α-amino acids, which function primarily as hair and skin conditioning agents in cosmetic products. The safety of α-amino acids as direct food additives has been well established based on extensive research through acute and chronic dietary exposures. The Panel focused its review on dermal irritation and sensitization data relevant to the use of these ingredients in topical cosmetics. The Panel concluded that α-amino acids were safe as cosmetic ingredients in the practices of use and concentration of this safety assessment.
Use this, not that!
Products where you might find Amino Acids
Peter Thomas Roth Peptide 21 Amino Acid Exfoliating Peel Pads ;Briogeo Curl Charisma Rice Amino + Shea Curl Defining Conditioner;; The Ordinary Glycolic Acid 7% Toning Solution;Briogeo Curl Charisma Rice Amino + Avocado Leave–In Defining Cream; Summer Fridays Super Amino Gel Cleanser
List of References
General sources: Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK501922/
Burnett C, Heldreth B, Bergfeld W, et al. Safety assessment of Œ±-amino acids as used in cosmetics. Int J Toxicol. 2013;32(6 Suppl):41S-64S. [PubMed] 2. Burnett C, Heldreth B, Bergfeld W, et al. Safety assessment of animal- and plant-derived amino acids as used in cosmetics. Int J Toxicol. 2014;33(4 Suppl):5S-12S. [PubMed] Related Articles: Glossary: Humectant Glossary: Honey Glossary: Peptides Glossary: Proteins Glossary: Urea Glossary: Natural Moisturizing Factors – NMF Understanding Your Skin Glossary: Polyphenols
Disclaimer: This material is provided for educational purposes only and is not intended for medical advice, diagnosis, or treatment. Consult your healthcare provider with any questions.