Skincare fans are raving about this five-star brightening serum

It has over 5,000 five-star reviews.

We've long known about the magical properties of hyaluronic acid, a skincare ingredient that banishes dryness thanks to its hydrating properties. Lush, hydrated skin means a healthy glow and less need for makeup, which is why it's so sought after at this time of year. Skincare obsessives are now going nuts for TruSkin Naturals Vitamin C Serum, a product that's had over 5,000 five-star reviews on shopping website Amazon. As InStyle reports, the serum is packed with hyaluronic acid to keep skin looking fresh, as well as Vitamin E to reduce raging and, of course, Vitamin C. You might think it's only good for fending off coughs and colds, but Vitamin C is also deadly for combating your skin's pigmentation issues. The before-and-after photos shared by reviewers on Amazon speak for themselves. Looks good to us! Sadly, we're not aware of any TruSkin stockists in Ireland but the serum can be bought on Ebay for less than €20 - a bargain price for a high-end skin saviour.