A dermatologist can determine the appropriate strength (e.g., 0.025%, 0.05%, 0.1%) for your skin type.

In the United States, Retin-A requires a prescription from a doctor or dermatologist. It is available in cream or gel forms.

Retin-A makes your skin more sensitive to the sun; daily use of SPF 30 or higher is crucial.

To reduce irritation (redness and peeling), begin by applying a small amount every third night, gradually increasing to every other night.

Tretinoin is the generic name and often more affordable than the branded Retin-A. To help you further, How to find an online dermatologist for a prescription? Common side effects of higher strengths (e.g., 0.1%)? 6 things to know about Retin-A | UT MD Anderson

If you cannot obtain a prescription, you may look for over-the-counter retinol products or adapalene, which was previously prescription-only. Key Tips for Usage