glad to see that you like the castor oil packs , some say that you can reuse them for about 30 times ,but I would recommend that you replace them at about 10 times ,so they don't have a chance to get rancid , and also huggins uses a very low dose for chelation only 25 mg every other day ,he says that detoxafication is retoxification , listen to your body it is always right and will let you know if you have pushed the boundries