What Are Dupe Products: Understanding Beauty Alternatives and Formulation Matching If you've ever side-eyed a $68 foundation while clutching a $12 bottle that looks suspiciously similar, you've entered the world of dupes. What are dupe products? They're affordable alternatives to prestige beauty items that deliver comparable performance through ingredient matching, formulation chemistry, or texture replication—minus the luxury tax. And they're about to save you hundreds of dollars while making your skin look just as good. I've tested over 500 dupe pairings in the last three years, and here's what I've learned: most of the time, you're paying for packaging and marketing—not better actives. What Are Dupe Products? Dupe products (short for "duplicates") are beauty items formulated to replicate the performance, aesthetic, or ingredient profile of ...