Olaplex No.4P Blonde Enhancer Toning Shampoo and No. 5P Blonde Enhancer - No.4P/No.5P

Yes, these products are suitable for all blonde, lightened, and grey hair, including virgin blonde hair that may have natural warm undertones or is being lightened.

Use as needed to maintain your desired cool tone. For most users, this means once or twice a week. If your blonde brassiness returns quickly, you might use it more often, but always monitor your hair's response.

No, these products are designed for toning and strengthening. They do not contain lightening agents and will not lighten your hair color.

While they are specifically formulated for blonde, lightened, and grey hair, they can be used on any hair color to help repair bonds. However, the toning effect will be most noticeable and beneficial on lighter shades.

No.4P is the toning shampoo designed to cleanse and neutralize brassy tones. No.5P is the toning conditioner, which provides deep hydration, detangling, and enhances the cool tones while further repairing hair bonds.

While the maximum recommended time for intense toning is 5 minutes, leaving it on significantly longer may cause over-toning or staining. It's best to stick to the recommended times and adjust frequency or application amount as needed.

The Olaplex No.4P Blonde Enhancer Toning Shampoo and No.5P Blonde Enhancer Toning Conditioner are sulfate-free, which helps to maintain hair moisture and color.

This can happen if the product was left on for too long or if your hair is very porous. Reduce the leave-on time in future applications or use less frequently. Rinse thoroughly immediately if you notice over-toning during application.

Ensure you are leaving the product on for the recommended duration (1-5 minutes for shampoo, 3 minutes for conditioner). For stubborn brassiness, consider increasing the shampoo's leave-on time slightly (up to 5 minutes) or using the shampoo more frequently, ensuring thorough rinsing.

While hydrating, excessive use or insufficient rinsing can sometimes lead to dryness. Always follow the No.4P Shampoo with the No.5P Conditioner and rinse both thoroughly. Ensure you are also using other moisturizing treatments if needed for your hair type.

The No.4P Shampoo is highly concentrated. Ensure hair is thoroughly wet before application and work up a lather. You may need to add a little more water than usual to achieve a good lather.