Tomalin usually refers to tourmaline, and does not have the efficacy of promoting secondary development, there is no scientific basis; to promote secondary development, can be different according to the cause of developmental delay, general developmental delay may be due to congenital causes, or lack of calcium and other acquired causes. 1. Congenital developmental delay: usually due to inborn lack of growth hormone or metabolic disorders, growth hormone can be injected under the guidance of the doctor to promote secondary development. 2. Calcium deficiency: Calcium is an important substance needed by the human body, and if it is in a state of long-term calcium deficiency, it will affect the state of development. You can take calcium supplements, such as calcium carbonate, calcium citrate, etc., under the guidance of your doctor, and you can also consume foods that contain more calcium, such as milk and meat. If you want to promote the secondary development, it is recommended to go to the hospital first, under the guidance of the doctor to improve the examination to clarify the cause of the disease and carry out targeted treatment.