The first step of your hair reconstruction routine.
Olaplex Nº.4 Bond Maintenance® Shampoo 250ml is a moisturizing and strengthening shampoo, formulated to repair, protect and nourish all hair types, especially hair damaged by chemical treatments, colouring, heat and brushing.

Thanks to Bond Building Technology™, Olaplex’s patented technology, this shampoo works deeply to rebuild the hair’s internal bonds and improve strength, shine and elasticity, wash after wash.

🌿 Vegan, cruelty-free, sulfate-free, paraben-free and phthalate-free.

✅ Benefits of Nº.4 Bond Maintenance® Shampoo

• Gentle yet effective cleansing

• Repairs and strengthens hair from within

• Visibly reduces frizz and breakage

• Increases shine, softness and resilience of the hair

• Suitable for all hair types, including coloured, treated or sensitized hair

🧪 Key Ingredients

• Bond Building Technology™: repairs damaged disulfide bonds

• Pro-Vitamin B5 and moisturizing agents: nourish without weighing hair down

• Balanced pH 6–6.5 formula: ideal for frequent use

🧴 How to Use

1️⃣ Apply a small amount to wet hair
2️⃣ Massage gently until a rich lather forms
3️⃣ Rinse thoroughly
4️⃣ Follow with Olaplex Nº.5 Bond Maintenance® Conditioner to complete the routine

💡 For professional results, pair Olaplex Nº.4 with Nº.0 and Nº.3 as a weekly intensive treatment.

👩🔬 Recommended for:

✔️ Hair that is coloured, lightened or permed
✔️ Brittle, dry or frizzy hair
✔️ Those who frequently use flat irons, hairdryers or hot tools
✔️ Anyone looking for a professional repairing shampoo for frequent use

❓ Frequently Asked Questions (FAQ)

Can I use the shampoo every day?
➡️ Yes, it is suitable for frequent use thanks to its gentle yet highly effective formula.

Is it suitable for fine hair?
➡️ Yes, but if you want an even lighter, more volumizing texture, choose Olaplex Nº.4FINE.

Is it good for curly or wavy hair?
➡️ Absolutely. It helps define and control frizz while maintaining curl elasticity.

Is it necessary to use Nº.5 conditioner as well?
➡️ It is highly recommended: the combination of both products ensures a complete rebuilding of the hair fibre.

Does it lather?
➡️ Yes, despite being sulfate-free, it creates a creamy, pleasant lather thanks to its innovative formula.

✨ Conclusion

The Olaplex Nº.4 Bond Maintenance® Shampoo 250ml is more than a shampoo: it is the foundation of your hair repair routine. Perfect for gently cleansing and rebuilding damaged hair, leaving it visibly healthier, shinier and stronger.

💛 Available now at Celebre Store – tested in our salons, recommended by experts.