Our pride and award-winning favorite that was the starting shot for the whole K-PAK! Packed with a powerful combination of amino acids and Joico’s smart keratin technology, this treatment will rebuild and strengthen brittle hairs in 5 minutes to immediately restore the hair to a perfect condition.The treatment’s incredible rebuilding properties and how it transforms the hair make it a favorite of millions of hairdressers - and we have the prices to prove it.Benefits:- Rebuilds and strengthens damaged hair from the inside out- 64% less risk of injury- Gives instantly healthier hair- Improves hair elasticityUse:Apply to damp hair. Let work for at least 5 minutes. Rinse.For a more hydrated touch, follow up with K-PAK Hydrator Intense Treatment.150 ml Joico K-pak Reconstructor Deep-Penetrating Treatment 150 ml