In reality jojoba oil is not an oil but a liquid wax, and is pronounced "ho-ho-ba" and became important in the 1970s when whaling was banned, since it has almost the same properties as the oil obtained from the sperm whale. If a good nourishing ingredient is needed for hair care, jojoba oil is also sometimes added to commercial hair care products, but due to the cost of jojoba oil, the quantities so included are low. Jojoba oil is obtained by cold pressing of seeds.