melatonin

As nouns the difference between melatonin and magnesium

is that melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals while magnesium is magnesium.

As nouns the difference between pineal and melatonin

is that pineal is pineal while melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals.

As nouns the difference between dopamine and melatonin

is that dopamine is (label) a neurotransmitter associated with movement, attention, learning, and the brain’s pleasure and reward system while melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals.

As nouns the difference between melatonin and melanopsin

is that melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals while melanopsin is any of a class of photopigment (an opsin) found in the retina; they are involved in the regulation of circadian rhythms.

As nouns the difference between melatonin and tetrahydrobiopterin

is that melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals while tetrahydrobiopterin is (biochemistry) a naturally-occurring nutrient and essential cofactor of the three aromatic amino acid hydroxylase enzymes, used in the biosynthesis of the neurotransmitters serotonin, melatonin, dopamine, norepinephrine, epinephrine, and nitric oxide.

As nouns the difference between mammal and melatonin

is that mammal is an animal of the class mammalia, characterized by being warm-blooded, having hair and feeding milk to its young while melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals.

As nouns the difference between reptile and melatonin

is that reptile is a cold-blooded vertebrate of the class reptilia while melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals.

As an adjective reptile

is creeping; moving on the belly, or by means of small and short legs.

As nouns the difference between skin and melatonin

is that skin is (uncountable) the outer protective layer of the body of any animal, including of a human while melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals.

As a verb skin

is to injure the skin of.

As nouns the difference between colour and melatonin

is that colour is (lb) the spectral composition of visible light while melatonin is a hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals.

As an adjective colour

is conveying colour, as opposed to shades of grey.

As a verb colour

is to give something colour.