1-6-1.Physiology function of skin＜１＞
	There is no one to have both functions various like the skin though there are various organs on man's body. Various functions complete becomes the condition of a beautiful skin.
	Breath action ●It breathes though the skin is also a little. As for breath done by the skin, the gas exchange done by blood, the skin organization, and intercellular is the main. An excessive make-up and the mineral oil disturb breath, and bring the aging of the skin forward.
	Protection action ●The skin does working that protects the body from the invasion of outside light, the outside power, and the bacillus.
	＜Protection from the physical outside power＞ Fiber, paniculus adiposus, blood, and the lymph etc. of dermis work the cushion compared with the bruise and pressure and the inside of the body is defended.
	＜Protection from chemical＞ Sebum membrane and stratum corneum with which the surface of the skin is covered prevent moisture and the chemical from invading. ＜Protection from sunray＞ This is a biological reaction that is generated a large amount of melanin pigment so that ultraviolet rays should not enter even dermis and happens though causes sunburn when light strikes the skin. ＜Protection from bacillus＞ It prevents it by adjusting the surface of the skin from pH4.5 to 6.5 for the growth of bacteria. It becomes easy bacilli and for mold to breed if inclining at alkalinity, and it becomes the cause of Cabre and the inflammation.
		Absorption ●It becomes familiar well for the skin, and what melted in fat and alcohol and what looks like sebum membrane are absorbed in the corium and the blood vessel through the follicle of hair though a small amount though the skin doesn't positively absorb the one of the water solubility. Especially, female hormone A/D/E/F and sulfur, etc. that melt easily oils and fats are the one that the passing skin is absorbed easily.
	Secretion and excretion actions ●The secretion of the skin has sebum from sebunm membrane and the sweat from the sweat gland. To be secreted, to stay on the surface of the skin, and to form sebum membrane, these are done. There is working that excretes body wastes at the same time, too.