The olaplex no.7 bonding oil is a highly concentrated and weightless oil that repairs the hair while increasing shine, softness and colour vibrancy. All hair is unique, but all damage is the same. Whether it's from chemical processes, heat and styling, ponytails and brushing, or a harsh environment damaged hair means damaged bonds. The result is hair that is dry, dull and less than manageable. This bonding oil dramatically repairs the hair while increasing shine, softness, and colour vibrancy. It minimises flyaways and frizz while providing uv heat protection of up to 450?f 232?c. To use remove cap. Turn the bottle upside down and gently tap to dispense the oil. Apply a small amount to damp or dry hair, and style as desired. Re apply lightly before re styling dry hair between washes. Where just a few drops restores hair appearance and texture. When can be used daily on wet and dry hair, or before styling with heat. For all hair types, especially for those using heat tools daily. Olaplex products are thoroughly tested in house and by independent third party laboratories for safety and efficacy. This product testing includes the industry standard human repeat insult patch test hript, which tests for skin irritation or sensitivity. All olaplex products have passed the hript, meaning the products show no signs of causing irritation, inflammation, or sensitivity.