That's melaTOnin you dumbfuck nigger. Melanin is a) the stuff that protects us against UV light and makes the skin darker or b) a waste product of dopamine/norepinephrine/epinephrine synthesis (which is why you can find it in locus coeruleus and substantia nigra in the first place, their function is to supply other structures of the brain with norepinephrine and dopamine respectively).
That's melaTOnin you dumbfuck nigger. Melanin is a) the stuff that protects us against UV light and makes the skin darker or b) a waste product of dopamine/norepinephrine/epinephrine synthesis (which is why you can find it in locus coeruleus and substantia nigra in the first place, their function is to supply other structures of the brain with norepinephrine and dopamine respectively).