CLINICAL RESULTS: After just one use, 94% agreed their hair felt smoother. After one week, 91% agreed their hair was more manageable and easier to brush. PRE WASH HAIR OIL: Shake the hair smoothing serum well before use. Apply 1 to 2½ dropperfuls on hair (dry, not wet) from root to tip, massaging and focusing on areas of damage. Leave it for twenty minutes. Rinse, then shampoo and condition as usual. SILICONE FREE: This anti frizz hair serum is formulated without parabens, petroleum, phthalates, SLS, SLES, PEGs, TEA, DEA, silicones, or artificial dyes or fragrances. And our formulas are not tested on animals. VITAMIN C AND SEA BUCKTHORN: Made with cuticle-sealing vitamin C, omega-rich sea buckthorn oil, and shine-boosting plumeria monoi oil, this hair care product is a simple prewash ritual that discourages frizzy hair, moisturizes, and helps detangle. HAIR SERUM FOR FRIZZY AND DAMAGED HAIR: The secret to your shiniest, softest, healthiest-looking hair is this preshampoo glow serum that works like a dream. This serum smooths frizz and damage, softens and strengthens your hair, and leaves it so shiny.GTIN: 850026647044. Best Sellers Rank: See Top 100 in Beauty & Personal Care. Liquid Volume: 30 Milliliters. Scent: Citrus. Material Type Free: All our products are formulated without parabens, petroleum, phthalates, SLS, SLES, PEGs, TEA, DEA, silicones, or artificial dyes or fragrances. See more. Hair Type: Dry,Frizz,Frizzy. Product Benefits: Our GOOPGLOW Restore + Shine Hair Serum smooths frizz and damage, softens and strengthens hair, and leaves it so shiny. See more. Country of Origin: USA. : B09QH6ZPL6. Manufacturer: goop. UPC: 850026647044. Package Dimensions: 4.21 x 2.56 x 2.32 inches; 4.76 Ounces.