Olaplex No. 4P Blonde Enhancer Purple Toning Shampoo (250ml)

A concentrated purple shampoo formulated to brighten, tone, and strengthen blonde, lightened, or gray hair. Ideal for neutralizing brassiness and enhancing brightness while reinforcing hair bonds.

• Neutralizes yellow/brassy tones with violet pigments

• Boosts brightness—for visibly 3× brighter hair after one wash 

• Reduces breakage by about 52% in a single use as part of a system

• Hydrates and softens hair while cleansing

• Sulfate- and silicone-free; safe for chemically treated hair

• Apply to wet hair, lather, and leave on for 1–3 minutes (or up to 5 for more intense toning), then rinse

• Recommended use: 1–2 times per week as needed

• For best results, pair with the matching purple conditioner (No. 5P) 

Pros

• Powerful neutralizing effect with quick toning action

• Bond-building formula leaves hair smoother and stronger

• Doesn’t over-dry like some purple shampoos 

Cons

• Can over-toning if left on too long—may impart violet tint 

• Some users find it slightly dry without follow-up conditioner

• Higher price point compared to typical toning shampoos

Who It's For

• Blonde, bleached, dyed, highlighted, or gray hair

• Those fighting brassiness while maintaining hair health

• Users seeking combined toning, strengthening, and hydration

Olaplex No. 4P stands out as a high-performance purple shampoo that not only tones but also hydrates and strengthens—perfect for maintaining vibrant, healthy blonde or gray hair between salon visits.