Ancient Herbals Echinacea + Astragalus

Ancient Herbals Echinacea + Astragalus and 3 near-identical products are sold under 3 different brand names — a exact-twin Formula Twins cluster.

Product	Brand
Ancient Herbals Echinacea + Astragalus	Ancient Nutrition
Elderberry + Probiotics	Ancient Nutrition
Woman's Health Formula Plus Probiotics	Puritan's Pride
Acidophilus Probiotic	Health Star