This serum boasts a silky, lightweight formula with 2% Vitamin C which is gradually released on the skin over time and helps combat the effects of sun damage, with the help of red algae. It also stimulates collagen production for a plumper, firmer complexion. Another hero ingredient in there is Vitamin B3, which works to reduce inflammation and even skin tone. Vitamin C Intense Daily Serum also has a gorgeous fragrance thanks to its luxurious blend of essential oils including rose geranium, lavender and sweet orange. Use it on its own or under your moisturiser.