In short: Photoageing is premature skin ageing caused by chronic sun exposure. It presents as wrinkles, pigment spots, rough texture and loss of elasticity. The age range of 35 to 50 is a particularly favourable time to counteract it — with the most effective, best-evidenced measures against this premature skin ageing.

What is photoageing?

Photoageing is premature skin ageing caused by chronic sun exposure. It presents as wrinkles, pigment spots, rough texture and loss of elasticity. The age range of 35 to 50 is a particularly favourable time to counteract it with a scientifically grounded routine.

The most effective measures

Sun protection (the most important measure)

Sun protection is the foundation of any anti-ageing routine: it prevents further UV-related damage before it occurs.

Apply a broad-spectrum sunscreen with at least SPF 30 daily, even in cloudy weather and near windows.
Use a generous amount. Most people apply only about a quarter of the recommended amount.
Apply cream to the whole face, including the eyelids and the area around the eyes; these areas are frequently forgotten.
A randomised trial spanning four and a half years showed 24% less visible skin ageing with daily use compared with only occasional use.

Retinoids

Retinoids — vitamin A derivatives such as tretinoin, retinol or adapalene — are the best-studied active ingredients against photoageing: they stimulate collagen production, smooth fine lines and improve pigment spots.

Apply thinly in the evening; use sun protection consistently in the morning, as the skin becomes more sensitive to light.
Start with a low concentration to avoid irritation, and increase it if it is well tolerated.
Prescription tretinoin shows the strongest, longest-documented effect; over-the-counter retinol works more mildly, but is also evidence-based.
Do not use during pregnancy.

Vitamin C

Topical vitamin C acts as an antioxidant, protecting against free radicals, and also supports collagen formation.

Apply in the morning before sunscreen; it works as a complement to UV protection.
Three-month clinical studies show a significant improvement in fine lines, skin roughness and firmness.

Niacinamide

Niacinamide (vitamin B3) strengthens the skin barrier, improves moisture retention and has an anti-inflammatory effect.

A twelve-week study showed significant improvements in fine lines, skin redness and pigment spots.
Combines well with retinoids and vitamin C; it can even help reduce the skin irritation they cause.

A practical daily routine

Morning: cleansing, vitamin C serum, moisturiser, sunscreen with SPF 30 or higher.
Evening: cleansing, retinoid (introduce gradually), moisturiser.

Visible results take time: a first noticeable improvement usually appears after eight to twelve weeks, with clearer effects often only after several months.

Important notes

Introduce new active ingredients one at a time, so that any skin reactions can be clearly attributed.
Seek medical advice in the case of strong irritation, persistent redness, or uncertainty regarding pregnancy or breastfeeding.

Sources

Hughes M.C.B. et al., Sunscreen and Prevention of Skin Aging: A Randomized Trial, Annals of Internal Medicine.
Sitohang I.B.S. et al., Topical tretinoin for treating photoaging: A systematic review of randomized controlled trials, International Journal of Women's Dermatology.
Dahiya A. & Romano J.F., Cosmeceuticals: A Review of Their Use for Aging and Photoaged Skin, Cosmetic Dermatology.
Bissett D.L. et al., Niacinamide: A B vitamin that improves aging facial skin appearance, Dermatologic Surgery.

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Anti-Ageing SkincareEvidence-based routine for ages 35 to 50