Olaplex No 4 Bond Maintenance Shampoo $37.00 / Tax included. Default Title Add to Cart Your Email Send This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Olaplex No 4 works on all hair types and textures. Adds incredible shine and manageability every time you shampoo. Best results when used with Olaplex No 5 Bond Maintenance Conditioner.