Cal-Mag 1:1 With Vitamin D3

Cal-Mag 1:1 With Vitamin D3 and 2 near-identical products are sold under 3 different brand names — a near-twin Formula Twins cluster.

Product	Brand
Cal-Mag 1:1 With Vitamin D3	Vitamer Laboratories
Performance Bone Support	Nutra Sport
Cal-Mag Bone Health +	Harmonia