Hot therapy: Start with 20 second increments as the specially formulated gel retains heat much longer than other gel packs, so less time is required in the microwave. If the pack is too hot, set aside and allow it to cool. Cold therapy: Store in the freezer until the pack reaches the desired temperature. The cold should help numb the painful area, not so cold that skin freezes. Never use a cold pack more than 20 minutes, take breaks and use a towel between the pack and the skin.
Microwave & freezer safe. Non toxic and latex free.