Used twice still over 50% full which the pictures clearly show. Authentic was purchased from look fantastic and I have the invoice. Olaplex No. 3 Hair Perfector Pre-Shampoo Treatment is designed to nourish and protect your hair. Its active ingredient includes Dimethicone, while it is rich in Glycerin. This product is suitable for a variety of hair types such as curly, dry, colour treated, damaged, and all hair types. The Olaplex No. 3 Hair Perfector Pre-Shampoo Treatment features hypoallergenic and paraben-free properties, and it is also cruelty-free and vegan-friendly. This product is perfect for those who desire to have their hair detangled, protected from heat, and get a shiny look while ensuring colour protection and deep conditioning.