• How long does it take to see results from retinol?

For most OTC retinols, it may take a few weeks of continued use to see results. According to a 2015 studyTrusted Source, a “significant reduction” in wrinkles was seen in participants who used a retinol for 12 weeks.

A more recent study from 2019 found that wrinkles around the eyes and on the neck improved in individuals who used retinol for 8 weeks.

What are the benefits of using retinol?

Using retinol may help:

•  treat mild acne
•  reduce some photodamage your skin has experienced from time out in the sun
•  reduce signs of aging Trusted Source such as wrinkles around the eyes
• improve skin’s overall appearance

Can you put moisturizer over retinol?

Yes, you can. If you’re using a retinol product, your nightly routine should look something like this:

1. Wash your face.
2. Dry your face.
3. Apply retinol.
4. Wait a few minutes, then apply moisturizer.

• Can retinol ruin your skin?

Most OTC retinol products are safe to use as directed, but there are some common side effects that can cause irritation in the short term. These side effects include:

• dry skin
• peeling
• sensitivity to the sun

an allergic reaction (rare)