1, Verbena officinalis: also known as Vitex negundo (outline) and Zidinglongya (outline), its main functions are clearing away heat and toxic materials, lowering blood fat, promoting blood circulation and removing blood stasis, promoting diuresis and reducing swelling. It can also treat exogenous fever, damp-heat jaundice, edema, etc. 2, lemon grass: lemon grass is a major feature of Southeast Asian cuisine, especially with a cool lemon smell, suitable for Thai cuisine, common in Thai cuisine. It smells delicious and has the function of sterilization and antivirus. At the same time, citronella also has the functions of strengthening spleen and stomach, diuresis and preventing anemia, which can eliminate flatulence pain and help digestion. Diuretic and detoxifying, eliminating edema and excess fat. 3. Rosemary: It has a wide range of uses, and can be used for cooking, baking western-style cakes, refining essential oil or brewing into tea, cooking, bacon and barbecue spices. It has a pleasant smell and was used in religious ceremonies as early as ancient times. Because rosemary first appeared on the cliffs along the Mediterranean coast, it was called "dew in the sea". It has the fragrance of waking people up, enhancing brain function, eliminating flatulence, invigorating stomach, promoting digestive function, enhancing memory, refreshing brain, reducing cholesterol and promoting blood circulation.

As can be seen from the above, these three kinds of grass have the effects of invigorating stomach, promoting digestion, diuresis and reducing swelling. Strengthening the stomach, promoting digestion, diuresis and reducing swelling are helpful to lose weight. Verbena in three herbs will be used in traditional Chinese medicine to lose weight because of its fat-reducing effect. However, the fat-reducing effect of verbena is not obvious, which is not as good as traditional Chinese medicine such as hawthorn.

From the efficacy of Sancao, we know that Sancao tea helps to lose weight. However, no matter from the efficacy or the ingredients contained, there is no indication that Sancao tea can specifically reduce fat for legs. In this regard, Dr. Xie also pointed out that there is no principle or basis for herbal tea, which can directly reach the legs and specialize in stovepipe.