I have been invited to join a biohacking group. I'm pretty sure it's an mlm but before I reply and say I don't want to get involved I want to be certain of the facts 
It seems like selling natural tablets to lose weight and prevent (serious) illnesses is what is involved which to me seems to be pretty dangerous and irresponsible. You need a sponsor to get involved and my potential sponsor seems to have invited everyone she knows to be a part of it.
So my aibu is... Aibu unreasonable to say no because its an mlm or do I need a different response?