Pearl powder can treat insomnia, epilepsy, and improve conjunctival congestion and mouth ulcers. It has supplemented the functions of beautifying the complexion, calming the mind, improving eyesight, clearing heat and detoxifying, and calcium supplementation. It was also mentioned to protect the liver and promote wound healing. It emphasizes whitening the skin, calming the mind and soothing the nerves, and enhancing immunity, etc. These sources basically cover the main functions of both internal and external use.