Tretinoin or Retin A is a derivative of Vitamin A that can prevent  the growth of acne by reducing oil production. It improves skin condition by skin peeling and unclogging pores. It effectively cures whiteheads and blackhead. It also eliminates wrinkles but it cannot cure acne. The effects of using Retin A manifest after six to nine weeks of continuous use. Expect the skin condition to worsen in the first week of using Retin A. For best result, it is recommended to regularly use retin-a for a year.

Users Guide

Tretinoin is for external use only and comes in topical liquid, cream, and gel. Avoid contact with eyes, nose, mouth, or any open wound. Tretinoin users may experience the following side effects: mild stinging of the skin, change in skin pigmentation, redness, swelling, scaling, increase in acne sores.

Apply only  a thin layer on affected skin at night every two or three days or as directed by the physician.

Applying lotions and astringents on a tretinoin-treated skin may cause irritation

Do not use other topical medications like benzoyl peroxide, salicylic acid and dandruff shampoos containing sulfur or resorcinol.

If you are to apply any form of tretinoin, follow these steps:

Apply tretinoin only on the area that needs medication.

Some people experience allergic reation to tretinoin so it is best to consult a doctor before using it.

Your doctor should be informed if you are pregnant, are planning to have a child, and other drugs and vitamins you are currently taking.

Avoid sun exposure while using tretinoin because it makes the skin sentive to sunlight.