This flavonoid (a type of vegetable-derived compound) has been popping up in lots of skincare products lately, promising skin texture and anti-aging benefits. Evidence has yet to show whether it's really the holy grail of skincare ingredients, but quercetin does have powerful antioxidant and anti-inflammatory benefits.
If you're in the market for a new magic bullet, or have have trouble with skin inflammation and irritation, there are plenty of products that offer quercetin as their signature ingredient. If you want to go Greek, Korres makes a Quercetin & Oak Day Cream ($48). If you have easily irritated lips, Ole Henriksen African Red Tea Exfoliating Lip Salvation ($15) also uses quercetin. The cheapest and most direct route for trying it, though, is to buy quercetin nutritional supplements, like Natrol Quercetin ($7), and make an anti-inflammatory face mask out of them similar to the DIY aspirin face mask.