Still not sure what that means? Don’t worry, just know that salons across the globe use Olaplex treatments to achieve soft, shiny, strong and healthy-looking results. Which Olaplex to use? Nº.4P repairs, cleanses, and tones with patented OLAPLEX technology for all blondes, lightened, and grey hair. While hydrating, Nº.4P neutralizes brassiness and brightens the blonde. The highly concentrated pigment allows customizable toning levels ideal for medium to light blonde tones (levels 7 and up) in which yellow or brassy tones need to be controlled. Compared to top purple shampoos, users found their hair 3x brighter using OLAPLEX Nº.4P. The longer you treat, the brighter the toning results, but we recommend starting with one minute and going from there.

I also love that you can slot this shampoo into your usual hair care routine. You don’t have to buy a separate conditioner to create a de-brassing "system", you simply follow with your usual No.5 Bond Maintenance Conditioner. Of course, you could use another conditioner if you wish, but I find products from the same brand tend to work in synergy; with Olaplex, this is all the more important, given its unique molecule. Their products help repair all types of chemical damage, like relaxing and keratin treatments, as well as perms and colouring. If you’ve managed to avoid the bleach but still have damage from heat styling, brushing or even environmental stressors, the Olaplex products are still suitable for you. 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. This leads us to our next round of ingredients which help support the strength of the hair, like Fermented Green Tea Oil which prevents split ends and breakage. Heliogenol derived from Sunflower Seed Extract also acts as a hair protectant against damage caused by free radicals and other hair processes or styling.Apply to wet hair. Lather thoroughly and let process 1-3 minutes. Rinse. For more intense toning, leave on hair for up to 5 minutes. Firstly, we’ve got to explain what makes Olaplex so special and why we need their bond maintenance treatments in our lives. Follow with Nº.5 Bond Maintenance Conditioner for everyday moisture or Nº.8 Bond Intense Moisture Mask for Extra hydration.

Inspired by salons, proven by science. No.4P Blonde Enhancer Toning Shampoo combines a high amount of pigment concentration with our patented bond-building technology and mild surfactants to provide a highly concentrated purple shampoo to deliver 3X brighter results (compared to top brands), yet gentle enough for frequent use (we recommend 2-3x weekly).

A Closer Look at Olaplex No.4P Blonde Enhancer Toning Shampoo

Basically, over styling and hair stressors can break the strong disulphide bonds in the hair. These bonds are necessary for a healthy-looking ‘do. This breakdown then creates a single sulphur hydrogen bond which can pair with three oxygen molecules. If this happens it produces cysteic acid which can eat away at the protein in your hair. This is bad news for our beautiful tresses! We are excited to release the No.4 and No.5 just around the corner after 2 years of formulating from our chemists. The results have been amazing and I can’t wait for everyone to experience.” – Dean Christal, Founder of Olaplex Nº.4P repairs cleanses and tones with patented OLAPLEX technology for all blondes, lightened, and grey hair. While hydrating, Nº.4P neutralizes brassiness and brightens blonde. The highly concentrated pigment allows customizable toning levels ideal for medium to light blonde tones (levels 7 and up) in which yellow or brassy tones need to be controlled. Compared to top purple shampoos, users found their hair 3x brighter using OLAPLEX Nº.4P. The longer you treat, the brighter the toning results.