• Strengthens, softens, and neutralizes unwanted yellow tones


• Hydrates and brightens; the longer you treat, the brighter the results


• Powered by Olaplex's patented Bond Building technology, it helps repair broken hair bonds and restore damage


• For all blonde, lightened and grey hair


• Gentle enough to use for every shampoo

The best-selling shampoo from Olaplex® is now formulated to celebrate the beauty of blonde. Olaplex® No.4-P Blonde Enhancer Toning Shampoo strengthens, softens, and neutralizes unwanted yellow tones for brighter, more manageable hair. Olaplex® No.4-P maintains all the benefits of the original No.4 and deposits just the right amount of tone to neutralize any unwanted warmth between salon visits. The sulfate-free, highly concentrated formula allows for customizable toning - The longer you treat, the brighter the results. Whether your blonde comes naturally or from your stylist, root to tip or balayage, and even if you’re proudly grey, Olaplex® No.4-P Blonde Enhancer Toning Shampoo will help to keep your color bright.

Key benefits:

• Highly concentrated formula neutralizes unwanted yellow tones while strengthening and softening hair


• Infused with Olaplex's patented Bond Building technology to repair broken bonds and restore damage


• Customizable toning - The longer your treat, the brighter the results


• Suitable for all blonde, lightened or and grey hair, natural or coloured


• Results in just 1-5 minutes


• Paraben, Phosphate & Sulfate Free. Vegan, Cruelty Free formula

Apply to wet hair. Lather fully & let process 1-3 minutes. Rinse. For more intense toning, leave on up to 5 minutes. Follow with Olaplex N°5 Bond Maintenance Conditioner (sold separately).
Tip: If hair has product build-up, cleanse first with Olaplex N°4 Bond Maintenance Shampoo.