a diet pill that the package says, "shi shang jing pin"

i have bought from a friend's friend diet pills that say, "SHI SHANG JING PIN" but now i lost connection. The only thing I know is that they come from china and she never gave me outter box, the capsules come in a sealed package with the above words. has anyone a clue where I can find it? All you take is one capsule in the morning and it doesn't make you hungry all day just thirsty. Your help is appreciated. Thanks