These PURE brand are excellent magnesium (citrate-malate) supplements. They are encapsulated, which allows for the conversion of liquids to solids to improve the drug release and stability. This is a mineral supplement that is used to prevent low amounts of magnesium in the blood helping your nerve function, muscles or for acid indigestion. It also helps increase fluid in the small intestines. I use this supplement to treat mild constipation as magnesium citrate/malate increases fluid in the small intestine which causes water to be retained in the stool causing it to be softer and easier to pass. This supplement has a very calming affect on my mind and body, too. I find using this supplement is far better than some of the over the counter laxatives. The capsules are easy to swallow, gluten free, non GMO and Hypoallergenic. I highly recommend, but with any supplement use, you should consult your doctor before using to make sure they won’t interfere with any of your other medication.