Amino acid; melanin precursor in skin. Functional formulation ingredient with no standalone activity on the skin.
Topical application
CWeak evidence. In vitro data, open-label studies, or expert consensus.
Inert formulation ingredient. Safe, no standalone activity.
Tyrosine is a non-essential aromatic amino acid and a melanin precursor in skin. Melanocytes use tyrosine as a substrate for tyrosinase – the key enzyme of melanogenesis. In cosmetics – a component of NMF and amino acid complexes. Mechanism. Within NMF it retains moisture via its aromatic ring and amino-acid groups. Controversy: it is marketed in self-tanners as a 'melanin activator', but topical tyrosine does not reach melanocytes in the basal layer and does not stimulate tanning – a 1980s myth debunked in the Garcin 1990 review. Where applied. Amino acid complexes in creams and serums, sensitive-skin products. It used to appear in self-tanners and 'safe-tan' products (0.5-1%), now replaced by dihydroxyacetone (DHA) as a more honest marketing ingredient. Evidence base. Functional NMF ingredient without specific RCTs. Marketing claims of 'tanning stimulation' have been disproven – Garcin 1990 showed topical tyrosine does not raise MED or speed up pigmentation. Safety. CIR confirmed the safety of all cosmetic amino acids in 2017. Non-sensitising, non-comedogenic. Pregnancy and lactation – safe. Usable without restrictions.
Irritation potential
LowAllergen risk
LowPregnancy
SafeThe Evigrade extension adds an evidence panel to Wildberries, Goldapple, Letu, iHerb, Sephora and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Tyrosine is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Amino acid; melanin precursor in skin.
The INCI name is Tyrosine. It may also appear as: Тирозин.
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