While I do not use the heating function in my sexual life as I enjoy ice, I do use this product at least 3-5 days a week. I live very very very far north and it gets very very very cold. And I have tried everything to stay warm...even buying those 1-time-use thermacare packs that while wonderful can only be used for 6-12 hours one time. Not very economical for the broke grad student. This product was the solution to my problem.

This is actually a smaller more whimsical version of what I get at physical therapy appointments. It heats up instantly and is ready when you are. To use you bend and pop the silver chip that is inside the heart and you will begin to see the reaction occurring, as this happens the color will change slightly and the gel will turn into a solid. You can stop it from turning into a solid by kneading it. Now you can put this heart on whatever you need to keep warm, at some point it will solidify so if you need it to stay a certain shape do so immediately. For myself I typically hold it in my hands during a football game, or on my back or neck if I'm sore, also ladies this is the best thing in the world for cramps!!! So soothing. I promise that you will want more than one. The heat typically lasts between 30 minutes and 2 hours depending on the temperature of the location where you are using it and what you are using it for. When the heart cools down it becomes a solid. In order to turn it back into a gel wrap it up in a dish towel (clean) and put that into a pot of boiling water for 5-10 minutes, I recommend doing this as soon as you are done using it, as it is best to store it in the gel state. Sam (aka Julie) has a really nice video of how this works on the products main page.

I really do love this heat pack it has saved me bundles in the long run and I currently own 4.

As I am writing this review I am using one for some horrible menstrual cramps and am so happy to have this to take away some of the pain.

The person who has my heart is 1000+ miles away from me right now. We each kept one of these and use them to warm our hearts when we need it. I'd always used it, but now it is helping a relationship stay strong. If you are in a long distance relationship I highly recommend this product as a really easy and affordable way to try to stay connected. And even after moving 1000+ miles it still works great!