The Strengthening Balm is a powerful treatment that replenishes the lack of natural keratin, restoring body and vitality to the hair. Its formula is enriched with low molecular weight hydrolyzed keratin, rich in cystine, which penetrates deeply to repair and reinforce the hair fiber. With a keratin-reinforcing and filling action, it helps restore density while boosting collagen for improved elasticity and resilience. Free from parabens, this balm is the ideal ally to strengthen, restructure, and revive weakened or damaged hair.