For example, the content of 500 mg γ -aminobutyric acid is the highest in the safe range, and the effect of deep sleep will be better if the content is high, so it can promote the secretion of growth hormone in large quantities, thus playing the role of assisting growth, and this component, lysine, together with aminobutyric acid, can affect the pituitary gland to increase the secretion of growth hormone! So that's why I bought it. After all, the more growth hormone is secreted, the higher it will grow. In addition, the long-legged deer also has the nutrition of regulating the spleen and stomach, mood and bone. It's a good deal. If you are interested, you can go to Yishenggu Tmall flagship store to find out.