Without changing the size of the shot glass, however, the amount of alcohol in a shot can go as high as 95%, or 2.85 standard drinks. This means, for instance, that if you have one shot of 190-proof Everclear, you have consumed 2.85 times as much alcohol as you would if you had one shot of 72-proof whisky.
Pigments that contribute to skin color are called carotene, a yellowish hemoglobin, in blood vessels (pink-red), and melanin (black, brown, red). Darker skins are dominated by melanin, which is produced from the amino acid tyrosine, by pigment cells (melanocytes) in the skin.igments that contribute to skin color are called carotene, a yellowish hemoglobin, in blood vessels (pink-red), and melanin (black, brown, red). Darker skins are dominated by melanin, which is produced from the amino acid tyrosine, by pigment cells (melanocytes) in the skin.
Melanins have the power to absorb ultraviolet rays, and thus they protect the skin from attack by solar radiation. This is translated into a more or less intense tanning of the skin. A palette of colour. There are two types of melanin: pheomelanin which is yellow coloured, and eumelanin which is black. It is the proportion and size of these pigments, without forgetting the carotenoids and the blood micro-circulation which gives the wide range of skin colour.