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Brand

Olaplex dupes

Olaplex is a US salon-born hair care brand built around its patented bond-building ingredient, Bis-Aminopropyl Diglycol Dimaleate, which it says helps repair damaged hair. It is best known for the numbered system: No.3 PLUS pre-shampoo treatment, No.4 shampoo, No.5 conditioner, No.6 smoother and No.7 bonding oil. Most products here are $30 to $44 for full sizes at Ulta; the prices we show are official-site prices.

Every build

Shampoo

Conditioner & masks

Leave-in & bond repair

Oils & serums

Scalp

Styling & heat

Dry shampoo