The recent popularity of backhand touching the navel has fully proved that this is a society with thin as the beauty. "Thin is versatile, fat is useless" says the bitterness of fat people. It is too tired to lose weight through exercise and too hard to lose weight through diet, which makes diet pills come into being. All kinds of weight loss products are dazzling. Fortunately, consumers' health awareness is becoming stronger and stronger, and they will pay more attention to the safety and practicality of the product formula when buying weight loss products. Ephedrine, pseudoephedrine and caffeine have been used as the effective ingredients of traditional weight loss drugs for many years. However, clinical trials have proved that they have toxic and side effects such as stroke, heart attack and high blood pressure, and their use as dietary supplements has been gradually restricted and prohibited. However, the weight-loss products without ephedrine, which are made of Rutaceae extract synephrine, etc., came into being. In the United States, synephrine has become one of the top five ingredients of over-the-counter weight loss products. So, will synephrine have side effects on human body?

    First of all, let's give a general introduction to synephrine. Synephrine is the main active component of citrus aurantium extract, which is the dry young fruit of Rutaceae plant lime and its cultivated varieties or sweet orange. The content of synephrine in immature fruit is higher than that in mature fruit. In addition, synephrine as a biogenic amine also exists in the urine and renal glands of mammals. Synephrine and other components in Fructus aurantii Immaturus are structurally similar to ephedrine and act as the matrix of special adrenaline receptor. They have pharmacological effects such as raising blood pressure, promoting lipolysis, reducing blood lipids, raising blood pressure, promoting lipolysis, reducing blood lipids and having adrenaline like effects. Unlike ephedra, Fructus aurantii Immaturus has a negative effect on the central nervous system. Ephedra can stimulate all β - adrenoceptors. Synephrine can accelerate fat metabolism and will not have adverse side effects like those in patients using ephedra.

    However, there is no standard for determining the optimal dose of synephrine in weight loss products, and the appropriate dose should be selected according to different users. Traditionally, it is considered appropriate to take 4-20mg of synephrine every day. Because synephrine has the cardiotonic effect of increasing blood pressure   , high dose of synephrine has great side effects on the elderly and patients with hypertension. Fructus aurantii Immaturus has been widely used as a traditional medicinal material with low toxicity and side effects. Synephrine is relatively safe.

    Synephrine As the main effective substance to promote fat decomposition, it can be widely used in various dietary supplements. Under the condition of determining the optimal dosage, it can be used as a food additive in candy, cake, biscuit, sugar cube, nutrition, tea bag, etc. It can also be used in beverages such as tea, coffee, nutrition and sports drinks and gum. It can also be used in cosmetics industry, such as sunscreen, moisturizer, moisturizer, facial cleanser, lipstick, etc.