Contains the patented OLAPLEX Bond Building Technology, super concentrated and repairing hair mask that gives shine & volume and intense hydration to treat your damaged strands. HOW TO USE: Apply to washed, damp hair from mid-section to ends. Work the product in with your fingers. Start with 2 pumps for shoulder length hair; use less or more depending on length and thickness. Leave it on for 10 minutes and rinse the hair.