This moisturizing leave-in provides instant results and continuous repair and protection from cortex to cuticle. Nº.5 LEAVE-IN™ immediately seals split ends and promotes visibly healthier hair after one use. Go beyond hydration with OLAPLEX Bond Building Technology™ and High-Adhesion Sealing Complex.

• Instantly hydrate, soften, and detangle.

• Immediately seal split ends.

• Continuously repair and protect.
  
  STUDY RESULTS:

• Revives hair health leaving it softer, hydrated, and healthier-looking.

• Up to 88% split-end sealing after one use.*

• 12x more moisture after one use.*

• Reduces breakage by 81%*

• Heat protection up to 450°F/232ºC

• Vegan. Color-safe.