No. 4 Blonde Enhancer

What it is: Highly concentrated purple shampoo cleanses, tones, and repairs while keeping hair hydrated from roots to ends. Sulfate-free formula creates a rich lather to neutralize brassiness and boost brightness after one use for all blonde, lightened, and grey hair.

Scientifically Proven:

• 3x Brighter* Compared to top purple shampoos

Hair Type: Straight, Wavy, Curly, and Coily

Hair Texture: Fine, Medium, and Thick

Hair Concerns:

• Dryness
• Color Safe
• Brassiness

What Else You Need to Know: 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).

Apply to wet hair, lather fully, and let process. 2-3 times per week or as often as needed to neutralize unwanted brassiness.

This product is vegan, gluten-free, and cruelty-free.

Bis-Aminopropyl Diglycol Dimaleate: Rebuilds broken and weakened bonds.