Garnier Glow Boost Fresh-Mix Sheet Mask with Vitamin C Because life is just a little more fun when you mix sh*t up, the Garnier Glow Boost Fresh-Mix Sheet Mask with Vitamin C (£4) lets you cocktail your own face mask. Just add a droplet (or three) onto the included sheet mask — the amount you use depends on how much you want to glow up in 2020. Image Source: boots.com Garnier Glow Boost Fresh-Mix Sheet Mask with Vitamin C £4 from boots.com Buy Now