After 2 weeks of taking Navixar I lost nothing and had terrible stomach cramps. I returned the product to both Canada (where the shipment was postmarked) and Florida where the Company Service Dept is located. I have signed Certified receipts that they received the shipment back to them HOWEVER, I have never received a refund. They do not answer the telephone except with a recorded message that says they are sooooo popular their shipments are delayed. I have left several messages but no return calls. This product is definitely a scam and so are the people with the web site. read full review »