5.How to Use Retinoids
At night, put a small amount (about the size of a pea) on your entire face and rub it in. Using more than that can cause itching, redness, or drying.
6.Don’t Wear Them During the Day
Retinoids break down in the sun. That’s why you should put them on at night before you go to bed. They don’t raise your risk of getting sunburn. But it’s smart to always use sunscreen — whether you’re using retinoids or not.
