Retin-A is a brand name for the topical prescription medication tretinoin, a medication used to improve the appearance of skin and correct signs of sun damage, aging and acne. Doctors prescribe Retin-A specifically for the treatment of acne vulgaris.

Function

Retin-A prevents cells in your skin from sticking together, which helps keep your pores from getting clogged. The medication also stimulates the formation of new skin cells, which reduces the appearance of blackheads, explains the U.S. National Library of Medicine.

Time Frame

The effects of Retin-A take time to become apparent, meaning you may not notice any improvement in the appearance of your skin for approximately two to three weeks, reports the U.S. National Library of Medicine. It may take up to six weeks for your skin to really begin to clear.

Dosage

Doctors typically prescribe Retin-A for use once per day before going to bed. Apply the medication wherever blemishes appear, advises the Mayo Clinic. Once your skin clears, your doctor may advise you to use Retin-A less often in order to maintain the effects of the drug.

Features

In order for Retin-A to work properly, the medication must remain on your skin undisturbed for at least one hour, explains the Mayo Clinic. Avoid washing or wiping your face during that time.

Considerations

During the first few weeks of therapy, your skin may appear red and irritated. This is a normal effect of the medication, and it usually diminishes as your skin becomes acclimated to the effects of Retin-A, explains the U.S. National Library of Medicine.

Source:

Mayo Clinic: Tretinoin (Topical Route)

U.S. National Library of Medicine DailyMed: Retin-A (Tretinoin) cream