-To dispense, remove cap. Turn bottle upside down and gently tap index finger on the bottom of bottle to dispense a metered drop. -Apply a small amount to damp or dry hair, style as desired. -Tips: Add a few drops of Olaplex No.6 Bond Smoother (sold separately) for incredible shine. - Bis-Aminopropyl Diglycol Dimaleate: Patented bond-building technology that rebuilds broken and weakened bonds. Free of sulfates SLS and SLES, parabens, and phthalates. This product is also vegan, cruelty-free, gluten-free. Olaplex’s No. 7 Bonding Oil repairs, strengthens, and hydrates all hair types. It dramatically increases shine, softness, and color vibrancy, while minimizing flyaways and providing heat protection up to 450 ° F / 230 ° C.