What it is: A weightless scalp serum that targets visible scalp aging, strengthens the scalp barrier, and immediately hydrates to support softer, healthy-looking hair.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Dryness- Flaky, Dry Scalp- ShineKey Benefits: - Immediately hydrates and soothes the scalp- Strengthens and protects the scalp barrier and microbiome - Promotes soft, shiny, healthy-looking hairHighlighted Ingredients:- Olaplex Bond Building Technology: Relinks bonds to strengthen the scalp barrier. - Antioxidant-Rich Blend: Protects against damage that causes accelerated scalp aging. - Biome Barrier-Balancing Blend: Maintains a healthy scalp environment and optimal microbiome balance. Ingredient Callouts: Free of parabens, phthalates, and sulfates SLS & SLES. It is also vegan and cruelty-free.What Else You Need to Know: This first-of-its-kind, bond-building scalp serum strengthens the scalp barrier, balances the scalp microbiome, and targets visible scalp aging to set the foundation for a future of softer, healthy-looking hair. The serum is trichologist approved, dermatologist tested, and for all hair and scalp types. Clinical Results: In a consumer-perception study of 75 participants, results showed: - Visibly healthier and softer hair after 4 weeksIn a test, results showed:- Scalp is 5X more hydrated immediately after use- Clinically proven to repair and strengthen the scalp barrier and protect from accelerated scalp aging