Chang sells more shaving cream than any other type of product and gives the blue ribbon to Hydroplane by Billy Jealousy ($20), which she says “is so good, it’s ridiculous.”

Katie Chang’s product-packed shop in south Williamsburg may be a mere 425 square feet, but it boasts almost 50 lines. If it’s a mega-brand you’re after, however, this isn’t the place for you. Chang is loyal to independently owned companies and cult skin-care and makeup lines you won’t find anywhere else in Brooklyn — or, in some cases, anywhere in the five boroughs. And unlike a lot of beauty shops, Miomia caters to as many men as women. Chang, who did her dissertation on men’s grooming (seriously), stocks unisex and guy-centric fragrances and skin-care products.