Sangsu Slim Fast Has a Fast action due to lemon leaves with green tea. Especially if you have a cough or congestion. The lemon helps cut through congestion and soothes the throat. The lemon leaves have been widely used as a medicinal plant having sedative and antispasmodic properties, thus helping in relieving the symptoms of disorders such asma, chest congestion due to flem. The lemon leaf is also an effective ingredient to de-worm your body. especially lemon leaves are beneficial for skin problems such as acne and pimples.