L-histidine, or histidine, is a non-essential amino acid found in a variety of foods and naturally in the structure of the hair, skin, and nails (J. Applied Cosmetology, 2012). Like all amino acids, the real value of histidine comes from its assimilation into the protein. The bloodstream absorbs amino acids and deliver them to all of the key tissues of the body, including the skin, hair, and nails, where they are assimilated into structural proteins like collagen, elastin, fibrin, and keratin. Histidine in particular is involved in a key structural collagen fibril (Journal of Biological Chemistry) that may help to keep the skin firm and supple over time!
MAY PROTECT AGAINST UV DAMAGE AND BOOST SKIN IMMUNITY
Immunity boost for your skin is another benefit. L-histidine and L-isoleucine may help to prevent skin infections when used regularly. Both have been shown to boost immunological activity against certain types of skin infections, whether by increasing activity (L-histidine) or increasing skin’s natural production of anti-microbial peptides (PLoS Pathogens, 2008, Pharmaceuticals, 2014).
NATURALLY FOUND IN SKIN PEPTIDES
Skin naturally repairs itself to a degree with certain peptides, like bombesin, which is found in the skin of both animals and humans. However, these peptides are comprised of healing amino acids, including histidine (Experentia).
As with all amino acids, histidine is naturally found in the skin at higher concentrations when you are younger. As the years go by, your body’s processes slow and some stop entirely. The result? You need to supplement the amino acids your skin is no longer making in order to maintain the same rate of essential proteins for your skin!
Histidine has been shown to boost UVA/UVB protection, boost skin immunity, and help stave off signs of aging for longer!
Skin care with the amino acid histidine should provide your skin with more structure and firmness, as your skin is getting the resources it needs to boost keratin, collagen, elastin, and other structural proteins.
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