Unlock hairs youth potential with NEW LumiShine® YouthLock, the first collagen-infused permanent crème color from JOICO. Harnessing the fountain of youth-like properties of Collagen—known to keep skin youthfully plump and improve skin elasticity and hydration—this innovative formula helps revitalize strands and lock in the look and feel of younger-looking hair. With just one color service: Hair springs back with renewed bounce,* body,* and signature LumiShine shine.** Resilience returns. Smoothness and softness*** are restored. Resistant gray gets our most gleaming and gorgeous coverage.