Serums are the saviours in the world of skincare, offering more powerful ingredients than face creams. If you’re dealing with fine lines and uneven skin tone, Medik8 launched a new addition to its anti-ageing retinol range this week – and it really packs a punch.

The Crystal Retinal 24, normally priced at £109, has a potency that works 11 times faster than standard retinol to tackle concerns like stubborn wrinkles and dark spots. It is stronger than its predecessors – strengths 1, 3, 6, 10…