Kerastase Nutritive Treatment Hair Mask is an intensive nourishing hair mask specially formulated for fine to medium dry hair that requires deep hydration and restorative care. This rich treatment combines plant-based proteins with niacinamide to deliver a concentrated infusion of nutrients that strengthen hair from root to tip. Designed to replenish moisture and improve texture, the mask restores softness, shine, and elasticity, leaving hair silky, smooth, and easier to manage. The deeply conditioning formula penetrates the hair fiber to provide essential moisture, helping to smooth roughness and reduce the risk of breakage caused by dryness. Plant-based proteins reinforce the hair's internal structure, improving strength and resilience while supporting long-term hair health. Niacinamide contributes to a healthier scalp environment, enhancing comfort and supporting the hair's natural vitality for a more luminous, polished appearance. Kerastase Nutritive Masquintense is ideal for hair exposed to daily stressors such as heat styling, environmental aggressors, or chemical treatments. Its rich, creamy texture envelops each strand, delivering instant nourishment while protecting hair against ongoing dryness. With regular use, hair appears revitalized, deeply nourished, and visibly healthier, offering a soft, supple feel and a refined finish that enhances overall manageability. This professional-grade hair mask provides salon-level nourishment in a convenient at-home treatment. Its carefully balanced formulation ensures optimal hydration without weighing hair down, making it especially suitable for fine to medium hair types that require moisture while maintaining natural volume and movement. Over time, hair becomes stronger, shinier, and more resilient, with improved flexibility and reduced signs of dryness.