Cal-Mag Citrate Powder by Thorne at TheMinusShop.com. Free shipping.

Ingredients:
One Heaping (5.4 g) Scoop Contains: Vitamin C (as Ascorbic Acid) 500 mg. Calcium (as Citrate/Ascorbate reacted from Calcium Carbonate and Citric/Ascorbic Acids) 500 mg. Magnesium (as Citrate/Ascorbate reacted from Magnesium Oxide and Citric/Ascorbic Acids) 200 mg.
Other Ingredients: Glycine. 

TheMinusShop.com. Free shipping.

This product has not been evaluated by the FDA. It is not intended to diagnose, treat, cure or prevent any disease.