Joico | YouthLock | Revitalisant au CollagèneJoico YouthLock Collagen Conditioner Youth Collagen Conditioner Mature and Weak Hair The solution for revitalized hair Le YouthLock Conditioner is designed to revive dry, brittle, and mature hair. Thanks to its formula rich in collagen and buriti oil, it intensely hydrates, restores suppleness and shine, while restoring body and bounce to hair weakened by time. Key Benefits Deep hydration which restores softness to dry and dull hair Instantly