Retinol without the misery

What does retinol actually do to your skin?

Retinol is a form of vitamin A that skin converts, slowly and inefficiently, into retinoic acid, which speeds up cell turnover and, over months, supports the look of firmer, more even skin. The strongest evidence is for prescription retinoic acid (tretinoin): a systematic review of randomised trials found every included study reported an improvement in the look of sun-damaged skin, and a two-year placebo-controlled trial found it safe over long-term use. Retinol is the gentler cosmetic cousin: weaker, slower, but working through the same route. Prescription retinoids are medicines, and MyAgenix does not advise on those; a GP or dermatologist does.

Why does retinol make skin red and flaky at first?

Redness, dryness and flaking in the first few weeks are the skin adjusting to a retinoid, a phase often called retinisation, and they are not a sign the product is wrong for you. The NHS notes that mild irritation and stinging are the most common side effects of topical retinoids. The mistake is starting at full strength, every night, on top of an exfoliating acid, and then blaming retinol. When someone says retinol does not suit them, those three habits are the first things worth checking.

How should you start using retinol?

Start with a low-strength retinol on a couple of evenings a week, over moisturiser, with sunscreen every morning, and build up only as your skin stays calm. The details below are what make that work.

Low and slow. Begin with a low concentration a couple of nights a week, and add a night only when your skin is calm. Work up over weeks, not days. There is no prize for speed: in one study comparing 0.3% and 1% retinol, the two strengths remodelled skin similarly in a lab model, and 0.3% caused fewer and milder reactions in daily use.

Buffer it. Apply moisturiser first, then retinol, or mix them. It slows absorption slightly and takes the edge off irritation. In a small patch-test study, a lipid mixture of ceramide and cholesterol applied with retinol cut the redness it caused.

Evening only, sunscreen every morning. Retinol breaks down in light, and the NHS advises avoiding excessive sun exposure while using topical retinoids. Wear sunscreen whenever the UV index is 3 or above, as the NHS sun safety advice says. This is not optional.

Drop the acids for now. Glycolic, salicylic, scrubs. Pause them while your skin adjusts. You can bring one back later, on alternate nights, if you still want it.

Pea-sized, whole face, avoid the eyelids and lip corners. More does not work faster. It just hurts more.

Who should not use retinol?

Retinoids are usually advised against if you are pregnant, trying to get pregnant or breastfeeding; the NHS says topical retinoids are not suitable during pregnancy. A MyAgenix read asks about this so it can leave them out. If your skin is already sore, cracked or reactive, sort the barrier first and come back to retinol later.

Expect change over months, not days: in a 12-week trial of retinol serums, the look of wrinkles and uneven tone eased gradually across the whole study. Photos help, because the change is gradual and your eyes adjust to it. That is what the diary in the app is for.

General information about skin, not medical advice. MyAgenix offers cosmetic guidance to help you choose products. It does not diagnose or treat any condition. For anything that needs treating, see a pharmacist, your GP or a dermatologist.