If you're concerned about carcinogens in nail polish, you'll be excited about this news. From now until May 15, when you turn in three polishes that contain formaldehyde, toluene, or DBP, you'll receive a Butter London "three-free" polish in exchange — no strings attached. Butter London is one of many companies that have ditched those three chemicals, and their colors are always on-trend.
To get your freebie, go to a Butter London boutique or a participating boutique and turn in three toxic polishes. (They don't have to be new — they can be the crusty bottles you've had for years.) You'll then receive a coupon for a free Butter London polish of your choice. It's a pretty good deal for your budget, and an excellent way to protect your health.