What is it?

“Retinols belong to a class of compounds known as retinoids,” says Dr Mahto. “These agents are derived from vitamin A.”

How does retinol benefit the skin?

According to Dr Mahto, retinoids have repeatedly been shown in clinical trials to improve skin cell turnover and reduce the breakdown of collagen, resulting in bouncier skin.

Used as part of a nightly skincare routine, they are also very helpful in reducing fine lines, pigmentation, acne and marks left behind by spots, as they encourage skin cells to renew themselves at a lightning speed.

Retinol is available in varying strengths and use should be gradually built up to avoid any skin irritation. If you’re a retinol novice, apply it to clean, dry skin two to three evenings a week and give your face a break with a retinol-free moisturiser in between, to keep redness, dryness and sensitivity at bay.

Product pick: Beauty Pie Super Retinol Ceramide Boost Face Serum, £13.70 for members, beautypie.com

A little of this goes a very long way to blur pigmentation, fine lines and discolouration left behind by acne. Rather cleverly, the retinol is suspended in cell-building ceramides, refining lactic acid and hydration powerhouse hyaluronic acid, which makes this a brilliant option for those with sensitive skin.

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