Retin-A [Tretinoin], Gel, Cream, and Liquid, marketed by OrthoNeutrogena, a division of Ortho-McNeil Pharmaceuticals, Inc is a 3, 7-dimethyl-9-(2, 6, 6-trimethyl-1-cyclohexenyl) -nona-2, 4, 6, 8-tetraenoic acid. Chemically, Retin-A [Tretinoin] is all-trans-retinoic acid. It is used in the treatment of acne vulgaris and keratosis pilaris.
Acne vulgaris:
Well, almost each and everyone has some other the time in their adolescent suffered from acne vulgaris, commonly called pimples. What is acne exactly? Our skin especially, over the face has a structure called as the pilo-sebaceous unit [skin structures consisting of a hair follicle and its associated sebaceous gland]. It contains the hair follicle and the sebum gland along with its duct. Now, the function of sebum gland is to secrete sebum which then gets expressed on the skin surface. It has got some antibacterial property. Sebum is oily in consistency and if there is increased expression of sebum then it might block the opening of the pilo-sebaceous duct. Due to this there is no drainage from the duct and this leads to the development of comedones. They are initially white, also called as white comedones and later they form black comedones. These comedones eventually lead to the formation of pimples. The most common site […]

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