The Crystal Retinal 3 serum is a popular skincare product that helps with anti-ageing. The serum has been reduced from £49 to £37.99 in the Amazon Spring Deal Days sale. According to price comparison website camelcamelcamel.com, this is the cheapest price ever Amazon.

Medik8’s products have achieved cult status in the beauty world, with the Crystal Retinal range proving to be one of the most popular. The serum comes in six different strengths, which are formulated to be used progressively…