Have you done any publicity? Such as the Internet and leaflets. 2.? Is your publicity attractive?
Weight loss products are aimed at young women first. In fact, this market is very large. Weight loss products are closely related to their own health. People don't try new things easily, always thinking that if there are side effects, if there is no effect, if it is deceptive. In view of these problems, we should propose solutions one by one. You can set the price lower at the beginning. Or promise consumers a full refund if they can't. If your product is genuine and really effective, and consumers accept it, the latter things will be much easier.