Probiotics help you maintain a healthy, diverse population of normal bacteria so your skin functions optimally. They also help treat sensitive skin conditions like eczema and acne that normal skin-care products might not be able to address. We tapped board-certified dermatologists Y. Claire Chang, Stacy Chimento, and Whitney Bowe, to recommend probiotic-infused skin-care products that actually work and restore balance to your skin’s microbiome.