It’s hard to break into beauty, on or offline, even if you’re owned by Amazon. As retailers from Trader Joe’s to Moda try to establish dominance in a category with endless points of distribution, it takes more than just populating your site or shelves with bottles and tubes of skin care to get shoppers to see you as a viable seller of beauty. It takes authority, and usually, exclusive focus (Sephora and Ulta Beauty aren’t trying to sell fashion, after all).