Retin-A is a powerful medication and should be used with caution. It is generally recommended to start using it every other night or 2-3 times a week, and then gradually increase the frequency as your skin becomes more accustomed to it. Overuse or excessive use of Retin-A can cause redness, irritation, peeling, and dryness.
It’s important to use a moisturizer and sunscreen while using Retin-A, as it can make your skin more sensitive to the sun. Also, it’s important to note that Retin-A can increase the skin’s sensitivity to other products, so it’s best to use it alone.