The company advertises free 30 day sample with payment of only shipping. You have to cancel and ship back within 15 days or they charge your card $90 for the "sample". To cancel you need to call their customer service number, which is ALWAYS busy and only open business hours on the east coast. I tried day in and out to get in touch for days and could not ever get through. They are a scam...don't do it! read full review »