Years ago I used Mario Badescu’s Acne Drying Lotion, and this is the exact same thing, though since it’s sold through Sephora, it’s easier for me to get than trying to find another retailer that sells Mario Badescu (I know I could go straight through MB’s website, but I prefer to use retailers that sell more than one brand). The concept is the same: don’t shake the bottle, dip a Q-tip through the top alcohol layer and into the pink layer, dab the pink stuff on zits, let dry, go to bed, wake up to smaller or gone zits. I liked MB’s version and thought it worked well, but I wasn’t so desperate for it that I’ve been buying it for the past few years. Overall I like Kate Somerville’s is decent. I had a bright zit near the tip of my nose and this spot treatment did nothing, didn’t even stay in place overnight. By morning there was no trace of the stuff. But for a growing zit on my chin (the kind where you can feel a tender spot days before you can see it), it completely killed that in two nights of treatment. I’m on the fence if I’ll buy this again. I might relent and find a retailer for MB first, since it costs less than Kate Somerville and is the exact same product.