Medik8 serum hailed 'Botox in a bottle' by doctors reduced by 25% 'biggest ever' Black Friday sale

Black Friday is on at Medik8 and the luxury anti-ageing brand is offering up to 25% off its bestselling skincare to mark to the occasion. That's not all, though. Alongside the price drops, shoppers who spend over £120 will get a full-size Micellar Mouse worth £25 for free.

There's countless products to choose from, including Medik8's Crystal Retinal Age-Defying Vitamin A Night Serum. The highly concentrated formula, which comes in a variety of strengths to suit different tolerance levels, promises to smooth, brighten, clear and firm skin.

Retinal is said to be up to 11 times more powerful than standard retinol. The specially-crafted formula ensures its skincare range is stable, powerful and consistent, according to the brand. As part of the Black Friday sale, a 30ml tube of Medik8's Crystal Retinal strength 6 is £51.75 for 30ml instead of £69.

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It’s recommended that you start with a lower strength and slowly build up, reports the Mirror. One happy customer said: "Love this product! I'm 66 years old and lived most of my life in the sun, we didn't use sunscreen in my youth and I'm definitely showing signs of pigmentation.

"Since using Crystal Retinal and going up in strength, my skin has improved dramatically. I would recommend this and any Medik8 with a gold star rating."

It's worth noting that it will work differently for each individual. “I wanted to like this but something in it is breaking me out. I feel like this is better suited for normal to dry skin,” said a Crystal Retinal customer.. If you wanted to try a different