![Olaplex No 4 Blonde Enhancer Toning Shampoo | Glow with Kate Beauty Medical Grade Skincare and Haircare in Florence Massachusetts and Cape Cod Massachusetts](http://glowwithkate.com/cdn/shop/products/image_c3f2c84a-9c73-4d87-9348-a93c2bcd6a26_{width}x.jpg?v=1637621212)
This highly concentrated, sulfate-free shampoo forms a rich lather to neutralize brassiness and boost brightness after one use. Suitable for all blonde, lightened, and gray hair—natural or stylist-created, root-to-tip or balayage—this non-drying formula can be rotated into any hair maintenance routine as needed for your best blonde yet. It’s scientifically proven to boost all blondes three times brighter*.
(*compared to top purple shampoos)
(*compared to top purple shampoos)