Vitamin,acid,Vitamin,acidcan,r health Vitamin A acid
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Vitamin A acidcan reduce wrinkles and improve skin roughness, increase in dermal thicknessand stimulate collagen deposition, have anti-aging effects on the skin. Onestudy showed that the efficacy of 0.025%vitamin A acid is the same as theefficacy of 0.05% or 0.1% vitamin A acid, also can reduce the irritation of theskin. The study also found that continuous use of vitamin A acid a year, itsrole will continue to improve. The most common side effects of topical vitaminA acid is irritating to the skin, it is often sold as a prescription drug.Vitamin A acid appeared in many occasions inmedicine, such as tretinoin, isotretinoin, acitretin and so on, they are allmedicine for treating skin disease, but different in uses. Vitamin A is theessential substance to maintain the body's normal epithelial tissue function,if the body lacks of it, will cause dry skin, pilaris, conjunctivalkeratinization and other problems. Isotretinoin is a vitamin A derivatives,general used in ineffective treatment of severe acne cases, including thosewith adequate, enough course, systemic antibiotic treatment of invalid cases,or accompanied by severe nodule or cyst acne vulgaris, should first choseisotretinoin. At the beginning of therapy often combined with oral prednisonetherapy, but prednisone can gradually stop in 3-4 weeks.The recommended dose of isotretinoin is 0.5-2mg per kg body weight daily oral, continuous use 16-20 week. On the generaltherapy of severe hidradenitis suppurativa, rosacea, acne, hair folliclekeratinization of Gram-negative bacteria are effective. In addition,isotretinoin can stimulate collagen emerging, while the collagen is strongmaterial to let the human skin young, the skin has more collagen fibers, itdoes not appear more wrinkles. The drug can also stimulate the growth of newblood vessels, let the skin look ruddy and health, so that make the dead cellshedding, grow fresh skin, therefore it also be made of adhesive, emulsion,cream for rhytidectomy.However, taking isotretinoin should not usedwith vitamin A or tetracycline. The most serious side effect of isotretinoin isteratogenic, patients pregnancy after taking the drug, 1 / 3 of spontaneousabortion, 1 / 3 need induction of labor, another 1 / 3 has 20% of the fetusesappeared severe congenital malformation, therefore women in reproductive age needisotretinoin to treat should be first excluded pregnancy. The other sideeffects of isotretinoin has dry lips, cheilitis, dry mouth, dry skin, scaling,so taking the medicine should under the guidance of doctors, and pay attentionto coat sunscreen.Both vitamin A acid and vitamin A have the effectof promoting growth, and can make the epithelium maintained normal role, buttopical vitamin A on human skin plays no practical effect, oral vitamin A isbeneficial to skin disease. And vitamin A acid topically applied to skin has astrong pharmacological properties, topical tretinoin can improve the aging skindue to sun exposure. A variety of skin diseases such as acne, pityriasis rubrapilaris, ichthyosis, common warts have remarkable curative effect, vitamin Aacid can be used as adjuvant drug therapy of psoriasis. But studies by tretinoinmanufacturer show that tretinoin can remove small wrinkles, reduce skinroughness, lighten stains, make skin ruddy. Vitamin A acid is magical,isotretinoin as A also very stimulating. In the use of vitamin A products, payattention to prevent bask in, because it has a photosensitive. Vitamin A acidoral and smearing effect is different. Here we talk is the oral have the abilityto anti pox.Source:http://www.cosprm.com
Vitamin,acid,Vitamin,acidcan,r