The word “dupe” — short for duplicate — emerged from TikTok beauty vocabulary and has worked its way into the strategy of the entire industry. It’s no longer a marginal phenomenon. It’s structural pressure on premium brands.

The premise is simple: affordable products replicate the function, sometimes the formula, often the packaging of their luxury counterparts. e.l.f., Essence, NYX and others have built their growth on this mechanic. For houses like Charlotte Tilbury, NARS, or Chanel Beauté, the question is no longer whether to ignore it — it’s understanding why their customers are embracing it.

What the Dupe Reveals About Perceived Value

A successful dupe says something precise about the brand being imitated: its value lives more in identity than in exclusive product performance. When a specific shade is reproduced at €8 versus €40, and consumers publicly compare the two formulas, they’re not saying luxury is worthless — they’re identifying precisely what they’re no longer willing to pay for.

That’s uncomfortable for brands, but informative. The categories where dupes proliferate (fluid foundation, mascara, blush) are those where functional differentiation is hardest to defend. The categories they penetrate less (prestige skincare, fragrances, high-coverage concealer) are those where formulation or product experience remains sufficiently differentiated.

The Strategic Response From Premium Brands

Three directions are emerging. The first is to overindex on in-store experience and consultation — something no dupe can replicate. The second is to accelerate product innovation to maintain a formulation lead. The third, adopted by some mid-prestige brands, is to launch their own accessible lines — a way to capture the dupe customer rather than lose them.

What the dupe phenomenon doesn’t challenge: the desire for luxury itself. It challenges price justification product by product. The brands that win will be those that build total value — service, formulation, brand narrative — irreducible to comparing a single reference on a shelf or a screen.