Description Pack contains Olaplex: - No.4, a highly moisturizing, reparative shampoo that leaves hair easy to manage, shiny, and healthier with each use. - No.5, a highly-moisturizing, reparative conditioner that protects and repairs damaged hair, split ends, and frizz by re-linking broken bonds. Key benefits: - Repairs and maintains bonds within the hair - Eliminates frizz and flyaways - Reduces breakage - Repairs hair and maintains bonds within the hair - Adds shine - Strengthens Suggested Use: Start with No.4, apply and massage product throughout hair. Thoroughly rinse product from hair. Follow with the No. 5 Bond Maintenance Conditioner. Apply generous amount from scalp to tip. Leave on for three minutes, then rinse.