Beauty fans are raving about a serum that makes you look "10 years younger" - and it's been slashed in price thanks to Amazon's Prime Big Deals Day event. The retail giant has dropped prices on a huge number of products for a limited time only. The shopping event runs from today, October 8, to October 9, with Amazon shoppers able snap up deals across the site, including tech, fashion, beauty and homeware.

For those wanting to get their hands on some early Christmas gifts, the event is the perfect opportunity. Among the must-have deals available is the dermatologist-approved Medik8's popular C-Tetra Serum , which promises results in just a week, including smoothing the look of fine lines and wrinkles while visibly boosting skin glow and radiance. It also aims to visibly brighten the skin tone, for a more even and healthy-looking skin appearance.

It contains tetrahexyldecyl ascorbate - an effective, stabilised, and low-irritation form of vitamin C. The serum , which has racked up a 4.5 star rating online, has dropped in price from £39, down to £29.

99. It has recieved a host of five star reviews, including one which said it is "worth every penny." They added: "Skin feels sooo much softer.

I combine this with Niacinamide in the morning. This glides and sits on the skin beautifully all day even. My skin feels incredible and I feel so rejuvenated.

Incredible product, love the smell too." A second wrote: "My skin has transformed with this! Excellent! I use every morning then follo.