An innovative new serum has taken the beauty world by storm, with customers hailing it as an “overnight facial in a bottle” that leaves skin visibly brighter, smoother, and glowing by morning. 

Medik8’s £39 Sleep Glycolic is a high-performance, time-released formula designed to work while you sleep, delivering powerful exfoliation without the irritation often associated with glycolic acid treatments. What’s more, savvy shoppers can currently get 15% off the product if they buy it direct…