For maximum bioavailability and convenience, try these liquid in the softgel from Phyto Therapy delivering six different forms of calcium and three different forms of magnesium. Sometimes it can be tough to know which mineral forms your body will respond to best, so this formula takes out any guesswork. It's manufactured in the USA and free of milk, egg, fish, shellfish, tree nuts, wheat, peanuts, soy, yeast, gluten, lactose, dairy and cholesterol.