Topical Drugs for Aging Skin

Topical tretinoin (all-trans-retinoic acid) has been used for years to treat skin damaged by chronic exposure to the sun (Medical Letter, 34:28, 1992). First approved by the FDA only for treatment of acne in concentrations ranging from 0.025% to 0.1% (Retin-A, and others), it has now been approved as an 0.05% formulation in an emollient cream base (Renova) for topical treatment of photodamaged skin. In recent years, alpha-hydroxy acids incorporated in some cosmetics have also been promoted as effective in improving the appearance of aging skin....

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