Tailor-made skincare has taken the industry by storm in the past few years—everything from mix-it-yourself serums to mail-order haircare prescriptions are appealing to a new generation of consumer who wants a beauty fix that’s perfectly suited to them. But French company Universkin takes the concept a few steps further with its personalized, pharmaceutical-grade serums that are tailored to suit your skin by a doctor. Could this powerfully potent product address my unpredictable, breakout-prone, sensitive skin, with its fine lines and other encroaching signs of being older and wiser? I decided to put it to the test.