The warming range caters to all individual preferences and weather conditions. Range goes from mild to medium/hot to very hot. If one has never tried a heating agent before training and you are not sure what will work for you, it’s always better to start with the mildest option first and see if that is giving you enough heat in the muscles as you exercise, if not, move on to the medium hot option and so on.Having different options for different weather conditions is also important. Muscle Warmup, the mildest option, is perfect for hot and warmer climates. The slight heat is activated as you rub it vigorously into the muscles for about 10 minutes before training. The aim of this product is to warm up muscles to increase circulation, loosening the muscles to help prevent soft tissue injuries, but without you being aware of the heat sensation for too long during your activity. The greasy texture of the product on the skin will help to insulate the skin for a period of time, keeping the muscle warmer for 2 to 3 hours.Muscle Warmup Ultra is the medium option, best for cooler and cold conditions or if the muscles are stiff and tight from a previous training session. The added liquid pepper extract will increase the heat sensation felt in the muscles as it is rubbed vigorously into the skin for 10 minutes before training and will increase slightly in heat intensity as you begin to move and sweat. This along with the greasy texture of the product will insulate the skin and keep the muscle much warmer for longer, between 3 to 5 hours.