6 Ounces. Protects hair from damage caused by heat appliances, the sun's rays and the environment. feather lite formula does not weigh the hair down for easy styling. Hair will be detangled and smooth to the touch. Olive Serum is not oily or greasy, and is ideal for all hair types. Dry, frizzy and chemically treated hair will be hydrated with more moisture and shine than ever before!