For: Every skin type, every day. The surface of your skin is covered in bacteria — some good, some evil. Your job is to manage their balance to make sure skin stays calm and healthy. When it’s out of whack, that’s when things like acne, blemishes, dullness, and some conditions like eczema and psoriasis can flare up. This post-cleanse fluid assumes the role of a toner in your skincare routine, but rather than “tone” in the traditional sense, it gives your skin a concentrated dose of beneficial microflora to help recolonize the surface of skin, creating an ideal environment for clear, balanced, and healthy skin — you might call it a utopia. Or a probiotic for your face. Either one works.