NO.0.5 SCALP LONGEVITY TRTMT FS 1.7FLOZ. Benefits: Immediately hydrates and soothes scalp. Strengthens and protects scalp barrier and microbiome. Promotes soft, shiny and visibly healthy hair. Hydrating and Anti-aging. Key Ingredients: Proprietary Scalp Barrier-Building Complex Patented OLAPLEX Bond Building Technology re-links disulfide bonds within keratin to strengthen the Stratum Corneumthe scalp barrier. Plus, a blend of essential fatty acids and ceramides provides nourishing lipid replenishment to hydrate a dry scalp.. Antioxidant-Rich Blend Of Lavender Extract & Tazman Pepper extract Helps protect against damaging free radicals and accelerated scalp aging caused by stressors like sun, poor water quality, irritants, chemical treatments, hair products, stress, lack of sleep, and an imbalanced diet.. Biome Pro-Balancing Blend Balances the microbiome and reinforces the scalp barrier to maintain a healthy scalp environment, which helps protect hair health.. Research Results: Visibly healthy, softer hair after 4 weeks*. 5X more hydrated scalp immediately**. 51% improved scalp barrier in 14 days**. 80% said scalp felt nourished after just one use*. *Based on a consumer perception study of 75 participants after 28 days of use.. **Based on a 16-week dermatologist-supervised clinical test of 25 participants following usage described on label.