What it is: A weightless, leave-in styling serum that's rich in antioxidants to help protect from pollution, heat, and future damage for shine, bounceback curls, and anti-static and anti-tangle action. Can be used on clean, damp hair and reapplied between washes. Hair Type: Fine, Medium, and Thick. Hair Texture: Coily, Curly, Straight, and Wavy. Hair Concerns: - Heat Protection. - Shine. - Anti-Aging. Key Benefits: - Delivers shine, style retention, and bounce. - Reduces tangles and static. - Protects against environmental aggressors and heat. Highlighted Ingredients: - Bis-Aminopropyl Diglycol Dimaleate: Patented technology scientifically shown to repair broken bonds for stronger hair. - Red Algae Extract: Blocks pollutants and neutralizes damaging free radicals with rich antioxidant levels. Ingredient Callouts: This product is vegan and cruelty-free. What Else You Need to Know: Perfect for all hair types, this antioxidant-rich, silicone-free styling serum shields strands from pollution, heat, and future damage by supplying nourishment, blocking pollutants, and neutralizing free radicals. Use on clean, damp hair and reapply between washes for satin shine, style retention, bouncy curls, less static and tangles, and heat protection up to 450°F. Clinical Results: In an independent-lab study, after hair was exposed to 2 cycles of pollution, with 90% to 99% of particle-size pollutants found in nature: - It shielded hair from pollution for 48 hours. OLAPLEX products are thoroughly tested in accordance with industry standards in-house and by independent third-party laboratories for safety and efficacy. Size: 3.04 FL OZ. Color: None. Gender: unisex. Age Group: adult.