Dopamine synthesis is linked to the enzyme tyrosinase, which is also responsible for skin pigmentation.

“dopamine and the synthesis of dopamine in the body. It's elyroine, but there's a there's a enzyme called tyrroscenase and it's the rate limiting enzyme for dopamine production. Dopamine makes you feel good, motivated, etc. It's correlated with the sex hormones. We we know all this stuff certainly you do. It's also responsible for pigmentation of the skin which is why for instance an arctic fox which is white in the winter becomes brown in the in the summer through the dopamine pathway.”