Natural supplements, now taken by at least a quarter of adult Americans, often contain trace amounts of lead, mercury, arsenic and potentially dangerous levels of pesticides.
We must be very careful to make sure our manufacturer adheres to the highest of standards.
I often check Consumer Lab, an independent tester, for the purity and content of vitamins, minerals, and herbs, which I personally use.
I have no connections with Puritans Pride, but this brand always comes through with flying colors.
Their products test out at the levels the labels at
test to, and without impurities.
The prices are also very good.