Tretinoin - Retin-A, Retin-A Micro, Avita, Renova

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What it is: You may have heard of tretinoin in reference to "Retin-A" wrinkle treatments. Tretinoin is retinoic acid and vitamin A acid combined, and comes in various strengths in creams, gels, and liquids for use on the skin. It is used to treat acne and also to treat sun damaged skin or wrinkles and is usually applied once per day.

What it does: It is thought to help unplug follicles and keep pores clear. It also increases the speed at which surface skin cells are replaced. A study done on Retin-A Micro, a particular brand of tretinoin, showed a 32-45% reduction in total "lesions".

Things to be aware of while taking it:
(see full story for details)		 Because it brings pimples to the surface, your skin may get worse before it gets better.

Exposure to sunlight should be minimized as you may be more sensitive to its rays.

Ask your doctor before using other medication on the skin, especially anything containing sulfur, resorcinol, or salicylic acid, as the combination may be too irritating. Abrasive soaps and cleansers should be used with caution for the same reason.

Side effects can include skin irritation, including excessive redness, crusted, or blistered skin.

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References

"Tretinoin." MedlinePlus. 2004. American Society of Health-System Pharmacists, Inc. 2000 link.