Simmondsia is a genus of flowering plants in the family Simmondsiaceae. It is commonly known as jojoba and is native to the southwestern United States and northwestern Mexico. The plant is a shrub that can grow up to 1.2 meters tall and is well-adapted to arid environments. The seeds of Simmondsia contain a liquid wax that is often used in cosmetics and personal care products. This wax is similar to human sebum, making it an effective moisturizer. Additionally, jojoba oil is valued for its stability and long shelf life, making it a popular ingredient in various formulations.