What does retinol do for your skin? The honest answer

Retinol helps your skin renew itself faster. Once it’s on your skin, it’s converted step by step into retinoic acid, which speeds up skin cell turnover and tells the deeper layer to make more collagen. Over a few months, that can mean fewer clogged pores, a more even tone and fine lines that are less noticeable.

What does retinol do for your skin?

It keeps pores from clogging

Every blackhead and pimple starts as a tiny plug of skin cells stuck inside a pore. A 2017 review in Dermatology and Therapy explains that retinoids, the family retinol belongs to, normalize how those cells shed, so plugs form less often, and that they also block several of the inflammation pathways behind acne. That review covers the stronger prescription retinoids, and retinol works the same way at a milder level.

It speeds up turnover at the surface

The AAD describes tretinoin, the prescription retinoid, as spurring faster turnover of surface skin cells and boosting collagen, and retinol nudges the same changes on a smaller scale. Faster turnover is also why the first few weeks can bring dryness and flaking: you’re seeing the top layer of dead cells shed on a new schedule.

It helps skin make more collagen

This is the part you can’t see for a while. In a 2016 study, four weeks of retinol made the epidermis measurably thicker and switched on the genes for collagen types I and III, the same changes prescription retinoic acid makes, only smaller. After 12 weeks of retinol, wrinkles measured from facial photos were significantly reduced. Worth knowing: the study was run by researchers from a skincare company with a university dermatology team.

What retinol can and can’t do

Does retinol thin your skin?

It’s one of the most searched retinol worries, and the evidence says no. In the 2016 study above, retinol made the epidermis, the living outer layer of skin, thicker within four weeks. What you notice early on is something else: the very top layer of dead cells sheds faster and can look flaky or feel tight. The 2017 review describes this early irritation as superficial, limited to the epidermis, and settling after a few weeks once shedding gets back to normal. Flaky isn’t thin. If the skin around your eyes looks crepey or raw, count it as irritation, keep retinol away from that area and give it a couple of weeks.

What age should you start retinol?

There’s no magic birthday. Start when you have something retinol is good at, like clogged pores, sun spots, uneven texture or early lines, and not because a video told you your mid-twenties are a deadline.

If there’s a tween or teen in your house, you’ve probably seen the videos: kids filming long routines, one serum after another. A 2025 study in Pediatrics looked at 100 of those social media videos, made by girls aged 7 to 18: routines averaged six products and about $168, the 25 most-viewed videos averaged 11 potentially irritating active ingredients, and only about a quarter of the videos included sunscreen. The authors concluded these routines offer little to no benefit to the kids they’re aimed at. The AAD’s October 2025 guide is clear that tweens and teens should skip retinol, vitamin C and exfoliating acids, because they target wrinkles and sun damage that young skin doesn’t have. What a young routine actually needs is short: a mild cleanser, a fragrance-free moisturizer and daily broad-spectrum sunscreen, SPF 30 or more.

Acne is the exception. The same guide says a dermatologist may recommend a retinoid for a tween or teen, and that it’s important to see a board-certified dermatologist first.

How long does retinol take to work?

Who should wait before starting retinol?

The AAD names a few groups. With rosacea, its advice is to avoid retinoids and ask a dermatologist what else could work. Very dry or allergy-prone skin probably isn’t a good match either. On deeper skin tones, the AAD notes that irritation can leave dark marks behind, so a slow start and plenty of moisturizer matter even more.

Pregnant, trying to conceive or breastfeeding? The AAD says retinoids shouldn’t be used during pregnancy, and Nubia plays it safe across all three, leaving retinoids out unless your clinician says otherwise.

Safety note: If retinol burns, your skin swells or the irritation keeps getting worse instead of better, stop using it and check with a dermatologist.

This is episode 1 of Retinoids, slowly. Read all seven and you’ll earn the series stamp in your Nubia Passport.