Unbox our bestsellers in one simple routine for stronger, healthier-looking hair through the holidays. Nº.3 is the iconic pre-shampoo treatment to repair damage, reduce breakage, and leave hair looking and feeling healthier. Experience stronger hair in as little as 3 minutes. Nº.4 and Nº.5 are the must-have, everyday hydrating shampoo and conditioner for soft, smooth, shiny hair. These bond-building bestsellers are ideal for any hair type to start their OLAPLEX journey. Visibly stronger, healthier hair–easy as 3-4-5. Color-safe and sulfate-free. Powered by patented OLAPLEX Bond Building Technology™, proven to rebuild broken disulfide bonds, the most important molecular bonds for building strong hair. The Strong Days Ahead Hair Kit contains: Nº.3 Hair Perfector™ (50 mL / 1.7 fl. oz.) Nº.4 Bond Maintenance® Shampoo (250 mL / 8.5 fl. oz.) Nº.5 Bond Maintenance® Conditioner (250 mL / 8.5 fl. oz.) All Hair Types Cruelty Free Gluten Free Nut Free Paraben Free PH Balanced