£5.80 found on deciem.com
I discovered The Ordinary’s Caffeine Solution 5% + EGCG on a shoot. I had puffy eyes thanks to a cold, but looked like I’d been crying. The make-up artist took one look at me and grabbed the serum, which she massaged circularly around my eyes (it felt like heaven). Within two minutes the puff had deflated and the colour started to normalise. It’s now my go-to for bad eye days.