I used 1% Retina-A cream 4 days ago. When will I stop peeling?

Retinoids are excellent for the face. We advise our patients to use Elevase Moisture Booster with ceramides to moisturize the skin when using retinoid creams. Best, Dr. Karamanoukian Los Angeles

Once you stop applying Retin-A cream, it should take a full week until the peeling process diminshes significantly. Moisturize and use high SPF protection in the meantime. 

The purpose of retin-A is to cause peeling, depending on the area treated and the concentration of retin-A, as well as the ambient humidity and weather, as well as your skin type, the degree of peeling can be variable. I would apply a thick moisturizing cream to the face for the next 1 week, and/or use a mild hydrocortisone cream for 3-5 days to speed up resolution.