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Tretionoirum
Product name: vitamin a acid
Chemical name:
3,7-dimethly-9-(2,6-trimethly-1-cylohexane)-2,4,6,8-pelartetaenoic acid
Construction formula:
Yellow acicular crystals, trans tretionoirum mainy
Quality index :Melting point 180 182 .
Easily dissolved in chloroform, dichoromethane and dissolved in carbinol, ethanol and also dissolved in vegetable oil and lipid. Instability exposed in light and caloricr, easily absorbing moisture and metamorphosed in water.
Character:
Both tretionirum and Vitamin A can stimulate skin growth and keep epidermic normal. Howerver, to spread on part of skin has no actual effect. Taking orally vitamin A is benefit to treat skin disorders. Applying vitamin A acid to skin partly could produce intensive pharmacological action.External use can slow down skin aging process for solarization, remove tiny wrinkles, and reduce skin roughness, so skin will become ruddy.
Side-effect and notice :
Dona t spread it in thin skin. Proper lower concentrarion (no more then 0.025%)can avoid such reaction as scalp off, Scorching fever and erythema which is caused by drastic dilation of blood vessel. Please insist on using the product and you will get preferable curative effect when you fing such normal reaction as erythema, scorch fever and hypodynia. Discontinue it and apply some oleiferous skin-care products to the skin site, if the reaction is severe. Cold cream concentration less than 0.025,show some effect upon treating acne and skin roughness kept cool and closed .
Package and Storage :