Olaplex No.4P Blonde Enhancer - 250ml

It is gentle enough for daily use, but frequency can be adjusted based on your hair's needs and desired toning level. Many users find 2-3 times per week sufficient.

Yes, Olaplex No.4P is excellent for neutralizing yellow tones that can appear in natural grey hair, helping to maintain a bright, silvery appearance.

No.4P uses Olaplex's patented bond-building technology to repair and strengthen hair while toning, unlike many purple shampoos that only deposit pigment. It's also highly concentrated for customizable results.

No, Olaplex No.4P is color-safe and designed to enhance and maintain the vibrancy of blonde and lightened hair colors without stripping them.

While not recommended for optimal results, some users dilute it with their regular shampoo for a milder toning effect. However, using it alone as directed provides the best outcome for toning and repair.

Yes, Olaplex products, including No.4P, are vegan and cruelty-free.

You may have left the shampoo on for too long or have very porous hair. Reduce the leave-on time in future applications. Ensure thorough rinsing.

Always follow with a highly moisturizing conditioner like Olaplex No. 5. Consider reducing the frequency of use or the leave-on time if dryness persists.

Ensure your hair is porous enough to absorb the toner. For very resistant brassiness, you may need to increase the leave-on time gradually or consult a professional.

This is a highly concentrated formula. You may need slightly more product than a standard shampoo, or ensure hair is fully saturated with water before applying.