How long do i have to use retin a to see an effect on skin?
How Long to Use Retin A to See an Effect?
Doctor Answers 1
How does it take to see the effects of Retin A
The lenght of time it takes to see the effects of Retin A will depend on what one is using for. If it's for acne or sun damage, one should start to see changes after a month. We usually evaluate its full effects on acne after 3 months.
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