Foundation shade matching was the worst unsolved problem in online shopping for a decade. Then virtual try-on got good, and beauty became AR's second-best story after furniture. - Map the product to a shopper's face in real time, accurately, in bad lighting, on every skin tone. Simple to describe, hard to do well. - The metrics that matter: shade confidence, fewer wrong-shade returns, more products tried per session. - Sephora's Virtual Artist earned its fame by working when most try-on was a gimmick. - Try-on increases experimentation: shoppers who would never click twelve shades will swipe through them on their own face. - The bar keeps rising: when a rendered shade differs from the product photo, trust dies fast. - Color accuracy is the obsession here the way scale is the obsession in furniture. ModelSnap produces the 3D model and AR preview file, $4.99 per HD model.