Dermatologists love retinoids – they speed up cell turnover so skin looks brighter and smoother, and improve the appearance of wrinkles. Retinoids can cause irritation, so if you’ve never used them be

Are night creams more than just moisturiser? Why don’t we use retinol in the day? What does skin get up to while we sleep? Read on for Prima ’s guide to overnight complexion care

Your questions answered, plus our pick of the products

Confused about retinoids? They are a family of ingredients derived from vitamin A. Retinoic acid, the most potent, prescription-only form, is at the top of the family tree, with ingredients like retin

Demystifying skincare’s powerhouse anti-ageing ingredient

Beauty that works while you slumber