Royal jelly is a milky secretion produced by worker bees that is used to feed the queen bee and her larvae. It is believed to contain proteins, lipids, carbohydrates, minerals, vitamins, and other compounds. Royal jelly has been used for centuries in traditional medicine, and it is thought to have various health benefits, such as boosting the immune system and promoting wound healing. Additionally, royal jelly is also used in some skincare products due to its moisturizing and anti-aging properties.