KAL Quality - Manufactured in our GMP-certified facility in Utah and lab tested for purity and potency, our vegan Magnesium is non-GMO, gluten free, made without soy or dairy, and packaged in PCR recycled plastic bottles for a positive environmental impact. Fast-Acting Support - KAL's ActivTab technology guarantees our magnesium citrate tablets disintegrate within 30 minutes, as per USP standards, and go to work quickly. Plus like all KAL products, they include a 60-day money back guarantee. Bioavailable Support - Chelated with citric acid for enhanced absorption and easy digestion, our Mag Citrate formula provides 400 mg of magnesium citrate per two-tablet serving. Calm Magnesium - A powerful muscle supplement, mag citrate may help support healthy muscle contractions and relaxation, proper nerve function and a calm, restful feeling. Essential Mineral - Involved in more than 300 enzymatic processes, magnesium may help provide a variety of full-body benefits, including healthy muscle function and relaxation, circulatory health and nerve support.