When taken proper care of, the product should last up to two years. If you're going to store the therapy wrap in the freezer, let it cool completely and put it in a resealable bag. That way it's always ready to go as a cold pack, and if you need it warm then you can take it direct from the freezer to the microwave. If you don't need to use it cold, store it in the open (i.e. not in a bag) so it can air out.
If you wish to add aromatherapy you can use our specially formulated Scent Spray or spritz some diluted essential oils on the fabric. Of course, you can use the therapy wrap as a hot/cold wrap without the extra enjoyment of the essential oils.
All Kuseno flaxseed products, except for the flaxseeds themselves, include a 1 year limited warranty on workmanship and materials (fabric and seams) with normal use.
When heated, the therapy wrap will stay warm for 10-30 minutes. It depends on how hot you make it and how you use it. There is also a perceived temperature where it might feel cold to you because your skin has adapted to the heat, but it'll still feel warm to someone else. If you place the wrap under a sweater, blanket or towel, it'll hold on to the heat longer.
When you feel like it's not warm enough anymore, just put it back in the microwave for 30 seconds at a time until it's warm enough again. There is no need to let the wrap cool completely before reheating it.
Overheating the therapy wrap is dangerous. It could burn your skin or start a fire. Just as minor overheating will scorch the flaxseeds and shorten the life of the product. Do not leave in the microwave unattended and don't overheat it.
When you take the therapy wrap out of the freezer, it should stay cold for 30-45 minutes depending how it's used. How long the wrap was in the freezer makes a difference, of course.