This strengthening shampoo is specially formulated to replenish the hair’s natural keratin, restoring body, resilience, and vitality to the hair fiber. Enriched with low-molecular-weight hydrolyzed keratin rich in cystine, it penetrates deeply to reinforce and repair weakened strands from within. Its advanced filling action helps improve hair density, while the collagen booster enhances strength, elasticity, and smoothness. The concentrated nourishing formula leaves hair feeling fuller, healthier, and more manageable, all without weighing it down. Free from parabens, it is ideal for maintaining strong, revitalized, and beautifully conditioned hair.