Almost any product or service could be sold through multilevel marketing, including health, beauty, and fitness products that aren't available on store shelves. Apply a healthy dose of skepticism before buying or selling products advertised as having "miracle" ingredients or guaranteed results. Many of these "quick cures" are unproven, fraudulently marketed, and useless. In fact, they could be dangerous. You may want to check with a health professional before using them — or selling them.
MLMs have been made illegal in some jurisdictions as a mere variation of the traditional pyramid scheme, including in mainland China.[10][11] In jurisdictions where MLMs have not been made illegal, many illegal pyramid schemes attempt to present themselves as MLM businesses.[7] Given that the overwhelming majority of MLM participants cannot realistically make a net profit, let alone a significant net profit, but instead overwhelmingly operate at net losses, some sources have defined all MLMs as a type of pyramid scheme, even if they have not been made illegal like traditional pyramid schemes through legislative statutes.[4][19][20]

The legal distinction between MLMs and traditional pyramid schemes has been characterized by many authorities as a legal fiction. Jurisdictions that retain a legal distinction between MLM pyramid businesses versus illegal pyramid schemes retain said distinction on two key distinguishing features: 1) that MLMs always encompass the sale of actual products/services, while traditional illegal pyramid schemes ordinarily do not (though sometimes they do), and 2) that climbing an MLM pyramid is overwhelmingly statistically improbable (especially to its highest participant levels) but not theoretically impossible, whereas climbing a traditional illegal pyramid scheme is both statistically and theoretically impossible.[citation needed]
If you insist on trying one of these MLM offers, the least you can do is look for proper business registration with BBB, toll free number, and proper address (no Post Office box). Also, you will need lots of family and friends to make it work. As a final step, check the MLM materials for one or more of these "red flags" that are associated with the worst of the offerings:

MLM Company Service