6-1.Mechanism that melanin can be done
	Melanin pigment and skin colour ●Even the same race has the individual variation though man's skin colour is greatly different according to race's difference and the place where it lives. In addition, even the individual is different the skin colour because of the part of the body. There are chiefly three elements in the decision of the skin colour.
	�@Color of coloring matter in skin In general, the element that decides whether the color of the said skin is white or black is a melanin pigment. The skin blackens by the amount of the melanin pigment large.
	�AAmount of blood of skin The blood flow volume of the capillary in the skin is controlled by the one that becomes the criteria whether the complexion is good or bad. Circulatory organs and digestive apparatus diseases might make the complexion dull. It is an edge because it is called a mirror by which the skin projects the health condition.
		�BMaterial carried to skin It is "Carotene. " to be known well. When a lot of citrus fruits such as mandarin oranges are taken, it is the one by the action of the carotene that the palm etc. yellows. It is because the carotene is exhausted with the sweat and the fat of the skin is colored. It often seems to occur in not the mandarin orange etc. recently but the vegetable and the carrot juices.
	Moreover, the skin and the eyeball's yellowing by jaundice etc. also has the result of the deposition of bilirubin. The body yellows when bilirubin increases without exhausting this to the enteric canal by a yellow protein in blood.