Is Dr David's underwear a pyramid scheme?

It's not a pyramid scheme, because I sell this pair of underwear, and it was also recommended by an acquaintance at that time. I bought a try-on, because I believe that I will act as an agent after wearing it. At first, there was no support at home, and I was afraid that I would join the pyramid scheme, but I tried to quit, so I can understand that some people think it is pyramid scheme, but it is a particularly noble thing to benefit from my health and help others, so I will want my family, relatives and friends to come first.