Nº.4P Blonde Enhancer Purple Toning Shampoo: Neutralizes Brassiness & Strengthen | Repairs Damages & Hydrates Hair | For Coily, Curly, Straight, and Wavy, 250 mL / 8.5 Fl. Oz.

The Olaplex Nº.4P Purple Toning Shampoo is a high-quality product that effectively helps neutralise brassy and yellow tones in blonde, lightened, or highlighted hair. After a few uses, hair looks noticeably cooler and more refreshed in tone. It lathers well and a small amount goes a long way, which makes the bottle last longer than expected. Despite being a toning shampoo, it doesn’t leave hair feeling overly dry, and it actually helps maintain softness and manageability. Hair feels cleaner, smoother, and slightly stronger over time, which is consistent with Olaplex’s reputation for repair-focused formulas. It works well across different hair types, including wavy and curly hair. The only minor downside is that it can be a bit strong if used too frequently, so balancing it with a hydrating shampoo or conditioner is helpful. Overall, a very effective purple shampoo that delivers visible toning results while still caring for hair health.

I’ve been using OLAPLEX No. 4P Blonde Enhancer Toning Shampoo for several weeks, and it has quickly become a staple in my haircare routine. The shampoo is excellent at maintaining blonde tones without leaving the hair feeling dry or brittle. It has a subtle toning effect that gently neutralizes brassy or yellow hues, leaving my blonde hair looking fresh, bright, and vibrant after every wash. The formula is luxurious and feels nourishing from the first application. It lathers nicely and rinses out easily, leaving the hair soft, smooth, and manageable. I’ve noticed that my hair feels healthier overall — less frizz, more shine, and better texture, which is especially important for chemically treated or bleached hair. It pairs perfectly with the OLAPLEX No. 5 conditioner for a full care routine. The scent is pleasant and sophisticated, not overpowering, and the 250 ml bottle lasts a decent amount of time even with regular use. I also appreciate that OLAPLEX focuses on hair health, using ingredients that repair and strengthen while cleansing, rather than just masking colour issues. Overall, this shampoo is fantastic for anyone with blonde, bleached, or highlighted hair. It enhances colour, improves hair texture, and keeps hair healthy and vibrant. It’s a premium product that delivers visible results, and I would highly recommend it to anyone serious about maintaining their blonde tones and hair health.

Used once and it was like I’d had my hair done at the salon! Completely changed the colour of my hair-less brassy and more natural. Had lots of comments that same day-people asked if I’d had my hair done. Really impressed. Only bought shampoo-you don’t need to buy the conditioner as well as the shampoo is so strong.

I have been lightening my hair over the last 4 years and recently (maybe due to the sun?) it looks yellow after about 4 washes. Maybe it’s the toner not being permanent I don’t know, not a stylist. I’ve used Olaplex for years and love it so thought I’d finally give this shampoo a try. Not only is it HIGHLY pigmented but it’s a thin/watery formula. A little goes a long way! I washed my hair as usual then did a wash with this product and it completely stained my hands that it took 4 washes with a scrub to remove it. It was on my hair for no more that 90 seconds as it was my first use I wanted to see what the effects were before leaving on for the recommended time. After rinsing, conditioner and then leave in conditioner I was shocked at how beautifully soft and manageable my hair was. It removed all the brassiness and left my hair feeling amazing. I will continue my regimen of only using this shampoo twice per month as I only put treatment’s in twice per month as I feel my hair isn’t dry or damaged (even with the lightening by my stylist) it even left me feeling like it doesn’t need hydration/moisture/repair treatments. I use function of beauty shampoo and conditioner once per week and alternate with Olaplex. Whenever I do use this in the future I’ll definitely use no3 and no5 to maintain my length, colour and strength of my hair. Not only does it smell amazing but it’s a different scent to the rest of the Olaplex line and I love that. Cannot recommend enough as it’s amazing. Buyer beware though use gloves so you don’t stain your hands and remove from skin around your hairline as soon as you can.

As someone who's constantly battling brass and maintaining my blonde highlights, I've tried countless purple shampoos - but Olaplex No. 4P has truly impressed me. Pros: Exceptional toning performance that neutralizes unwanted yellow and orange tones effectively. The purple pigment is perfectly balanced - strong enough to combat brassiness, but not so intense that it leaves a purple cast on the hair. True to Olaplex's reputation, this shampoo goes beyond just toning. It genuinely repairs and strengthens hair, which is crucial for chemically treated blonde hair that's prone to damage. The hydration factor is remarkable. Unlike many toning shampoos that can leave hair feeling dry and stripped, this formula maintains hair's moisture and softness. A little goes a long way - the 250ml bottle has impressive longevity, making it a cost-effective option despite the premium price point. Cons: The price is definitely on the higher end of hair care products. At around $30 for 250ml, it's an investment. Those with very light or very dark blonde hair might need to experiment with application time to get the perfect tone. The purple pigment can be slightly messy if you're not careful during application. What truly sets this apart is how it cares for hair health while toning. It's not just about appearance, but actually repairing and protecting blonde, lightened, and grey hair. The bond-building technology Olaplex is known for is evident in every wash. I recommend leaving it on for 3-5 minutes in the shower for optimal toning, and using it once or twice a week depending on your hair's needs. For anyone struggling with brassy tones or maintaining their blonde, this is a game-changer. A bit of a splurge, but absolutely worth every penny for those serious about hair care.

Did the job perfectly

Absolutely amazing, I have used many brands but this one beats them all. Pricey but worth it.

Good for the hair but leaves dark stains on hands difficult to wash out nails

Amazing

É bem pigmentado e depois do uso eu sinto meu cabelo um pouco seco.

De los mejores matizantes que he encontrado para mis mechas y canas, además de la hidratación que deja en el cabello. Sin duda, sigue siendo la línea para el cabello, favorita para mi.

👍🏻

The expiry dates shown in 2022 and one side of bottle seems leaked with the shampoo stain.