Tyrosinase
Tyrosinase — the key enzyme that controls the rate of melanin production by converting the amino acid tyrosine into the pigment precursors that eventually become melanin. Because it drives the first and rate-limiting steps of pigment formation, it is a common target for ingredients intended to reduce dark spots and even skin tone.
Key points
- Tyrosinase catalyzes the conversion of tyrosine into DOPA and then dopaquinone, the starting points of melanin synthesis.
- It requires copper as a cofactor, which is why some inhibitors work by binding or interfering with copper.
- Ingredients studied as tyrosinase inhibitors include vitamin C, kojic acid, arbutin, and azelaic acid.
- Slowing tyrosinase activity can reduce new pigment formation but does not remove melanin that is already present.
Frequently asked
What does inhibiting tyrosinase do for skin?
It slows the production of new melanin, which can help reduce the appearance of dark spots and support a more even tone when used consistently.
Are tyrosinase inhibitors a quick fix?
No; they work gradually over weeks to months and are most effective when paired with daily sun protection.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
