Can vitamin C really fight wrinkles?

YES, it can, says Donna Tait, co-founder of Katherine Daniels Cosmetics.

She explains: ‘In the correct quantities, vitamin C is proven to aid skin recovery. It has a stimulating effect on the skin’s fibroblasts (cells that produce collagen, elastin, DNA and hyaluronic acid), which helps with the anti-ageing process.’

Vitamin C in your products will also boost sluggish skin and even out skin tone. The new Vichy LiftActiv Vitamin C Skin Brightening Corrector (left, £28,

vichy. co. uk) contains 15 per cent vitamin C. Applied once a day for ten days, it will brighten the complexion.

Initially, your skin may feel tingly. This is normal, but do apply SPF on top to protect your skin during treatment.