How long should I leave tretinoin on my face?
It can take one to two minutes for the tretinoin cream or gel to begin to absorb into your skin, at which point it should no longer be visible. Set a timer for 20 minutes and avoid touching your skin or applying any other skincare products until the tretinoin has been fully absorbed. Are you supposed to wash off tretinoin cream? You should avoid washing the skin treated with tretinoin for at least 1 hour after applying it.