Joico K-Pak Reconstructing 1 Litre DuoShampoo 1000ml: Lather in lustrous, more resilient hair. Formulated with damage seeking Keratin and protective Guajava Fruit Extract, this gentle shampoo helps fortify weak strands and (bonus!) prevent future damage.* *When used with K PAK Reconstructing Conditioner Benefits: Unlike traditional shampoos that can strip away what little joi remains, this power packed formula gives and gives, instantly improving elasticity, strength, and shine.* Gently