Olaplex No. 4 Blonde Enhancing Shampoo
Chrissy’s Tip: This toning shampoo is a must-have for blondes! It neutralizes brassiness while cleansing and repairing your hair, leaving it brighter and healthier after just one use.
The Olaplex Nº.4P Blonde Enhancer™ Toning Shampoo is a highly concentrated purple shampoo that cleanses, tones, and repairs. Its sulfate-free, pH-balanced formula neutralizes unwanted brassiness and yellow tones, boosting brightness without stripping or drying your hair.
Pro Tip: Dispense the desired amount into your hands, emulsify, and apply to wet hair. Lather fully and leave on for 1-3 minutes before rinsing. For more intense toning, leave on for up to 5 minutes.
Best For: Blonde, highlighted, and gray hair needing toning and repair.
| Key Features | Details |
|---|---|
| Sulfate-Free | Gentle on hair, preserves natural moisture |
| pH Balanced | Maintains hair health without disrupting natural pH |
| Concentrated Purple Tone | Targets brassiness and yellow tones effectively |
| Repairing Formula | Supports hair strength and integrity |
FAQ
How long should I leave the shampoo on my hair?
Leave on for 1 to 3 minutes for regular use. For more intense toning, leave on for up to 5 minutes.
Can I use this shampoo on colored or highlighted hair?
Yes, it is specifically designed for blonde, highlighted, and gray hair to neutralize brassiness and enhance brightness.
Does this shampoo help repair damaged hair?
Yes, the formula includes repair elements that support hair strength and integrity while toning.

Sean Bell –
I’ve used this shampoo for a few weeks now and my blonde hair has become noticeably brighter. No more yellow tones after washing. It feels gentle and doesn’t dry out my hair, which is a big plus.
Abigail Poole –
Great for maintaining my blonde highlights. I leave it on for 3 minutes and it works well. My hair stays vibrant without needing frequent touch-ups.
Keith Cornish –
After using this shampoo, my gray hair looks much more balanced. The purple tone is strong but not overpowering. I appreciate the repair aspect as well.
Natalie Langdon –
It cleanses well and removes brassiness effectively. I apply it after washing and rinse thoroughly. My hair feels softer and looks more uniform.