Thanks, I guess I'll research boron supplements before I buy the borax. Money is really tight right now, I've just had my hours at work cut. (well, everybody has, rather than face layoffs) So, I am looking for the most economical and efficient way to go. Applied kinesiology done several years ago pointed to some heavy metal issues, plus after over twenty years of drinking very hard spring water has left me with calcium deposits in joints and also (according to x-rays) my lungs. From what I have read, boron can help with both of these issues.