Joico K-Pak Sun Therapy Nourishing Shampoo Joico K-Pak Sun Therapy Nourishing Shampoo is step 1 in the Joico's K-Pak Sun Therapy hair repair regimen. This gentle, color-safe shampoo featuring Joico's Quadramine Complex together with Hydroxy Sun Complex cleanses and repairs sun-damaged hair. Hair is also replenished with nutrients, moisture and strength that sun has stripped away. Contains aloe vera, for natural healing and soothing, Covabsorb EW, a powerful UV protectant, and the Quadramine Complex and KPAK Hair Protection System for advanced levels of reconstruction, manageability and shine. Recent studies have shown the sun’s rays can actually burn holes into the hair’s surface, leaving it severely damaged and dehydrated. To combat this, Joico announces K-PAK Sun Therapy System, an innovative product that helps fill and repair the holes left behind long after the sun has set. The combination of revolutionary Hydroxy Sun Complex™ and Quadramine Complex™ works to repair hair’s sun-damaged cuticles. Hydroxy Sun Complex™ literally fills in the “holes” in the hair cuticle and the Quadramine Complex™ is an exclusive blend of low molecular weight and size proteins that adhere quickly and effectively, ensuring maximum hair strand protection and reconstruction, inside and out.