Olaplex's No. 0 and No. 3 are professional treatments that work together to repair and restore damaged hair, while the Mini 4 and 5 provide hydration and protection. This set is ideal for at-home use to maintain salon-quality results. Key Features: • Repairs damaged hair and restores strength. • Increases hair hydration and shine. • Protects hair from future damage. • Ideal for home use to complement salon treatments. How to Use: Start with No. 0 on dry hair, leave for 10 minutes, then apply No. 3 and leave for another 10 minutes before rinsing. Follow with Mini 4 and 5 for a complete treatment.