Retinoids are the most studied ingredient for fine lines and texture. They are also the one people give up on most, usually in the second week, when the peeling starts.

Start slower than you think

Two nights a week for the first month, then three, then every other night. Use a pea-sized amount for the whole face, never more.

Buffer it

Apply moisturiser first and the retinoid on top. It slows absorption and cuts irritation without cancelling the effect.

Wear sunscreen every day while you use it, and expect to wait about twelve weeks before judging the results.