I only used this once. I can use again in a couple weeks. I started felling a difference a few days after using. I used on my stomach and muffin top, both thighs. It was so cold but I could feel it working. I am looking forward to seeing more results. This beats going and spending money to have it done. I am in the privacy of my own home. I will follow up with more results as they come so others know this truly works! Mind you-one time so far for me. The directions say once every 4 weeks. I drink lot's of water to flush out system in body. Thank you so very much and I love it....