Retin-A, also known by its generic name tretinoin, causes dead skin cells to flake off at an accelerated rate, revealing new skin underneath. This process triggers the production of collagen, which is responsible for making the skin firm and "plump."
Concern: Crow's Feet and Forehead Lines
A retinoid cream will help your skin build collagen and soften lines around the eyes and on the forehead. Prescription formulas (brand names include Retin-A and Renova) yield improvement in two to three months; an over-the-counter retinoid (retinol) will also smooth lines, though results are less dramatic. Source: Oprah.com
Hyperpigmentation and Age Spots
Combined with 4% Hydroquinone cream produces outstanding results to reduce most types of hyperpigmentation, such as Melasma and Sundamage. Obagi NuDerm System that is based on combination of Retin A, Hydroquinone ans Alpha Hydroxies is the best performer on the market to reverse skin damage due to enviroment, pollution and aging.
Skin Texture, Enlarged Pores and Acne Scarring
Retin-A helps to unclog pores and prevent pores from becoming clogged with dirt, oil and bacteria.
Retin-A is probably most effective against post-inflammatory hyperpigmentation and shallow scars. Post-inflammatory hyperpigmentation is not a "true" scar, but rather a red to brown discoloration of the skin caused by inflammation or injury. Retin-A removes these areas of discoloration by increasing the rate at which the darkly pigmented skin cells flake off. When the dark pigment is removed, new, more even-toned skin is revealed.
Shallow scars, such as ice pick scars from acne, may be improved or "lifted up" by the production of collagen from Retin-A.