The Intensive Bond Building Hair Treatment N° 0 by OLAPLEX is an intensive repair booster that is absorbed by the hair forming part of the 2-step system with OLAPLEX Hair Perfector N°3. The 2-step treatment uses N° 0 and N° 3 repairs damaged disulfide bonds as it strengthens the structure of the hair long-term.

• works as a primer to prep the hair for subsequent hair treatment
• repairs hair damage caused by chemical treatments, styling, heat (flat irons, blow-dryers, etc.), sunlight, etc.
• suitable for all hair types
• sufficient for approximately 4 - 6 applications
• use as an at-home treatment once a week
• vegan and cruelty-free