Diet soap is an IQ tax. It is unreasonable that slimming soap can lose weight. Authoritative experts believe that there is no basis and no scientific research basis. Diet soap can't lose weight. At present, biologists' scientific research on the gene level shows that OB protein can reasonably lose weight, let alone produce gene slimming drugs. At present, if you want to lose weight, only by controlling food calories and exercise can you help lose weight. Authoritative experts emphasize that the skin is a natural barrier for the maintenance of the surface layer of the body, which consists of a double-layer mechanism, including the outer skin, cowhide and skin tissue, and can resist the invasion of germs and harmful substances. Weight-loss soap only acts on the outer skin, and it can't lose weight according to such a double-layer mechanism. Therefore, the weight loss effect of soap is almost zero or even zero. So slimming soap is an IQ tax.