Norwegian Kelp

Norwegian Kelp and 17 near-identical products are sold under 10 different brand names — a near-twin Formula Twins cluster.

Product	Brand
Norwegian Kelp	Nature's Harmony
Potassium Iodate	Vitamin Research Products
Bladderwrack Leaves	Swanson Superior Herbs
Bladderwrack Whole Thallus 580 mg	Nature's Way
Thyro Complex	Endo-met Laboratories
Thyro Complex	Endo-met Laboratories
Kelp	Endo-met Laboratories
Kelp	Endo-met Laboratories
Seatrition	Daily Health
Kelp Whole Thallus 600 mg	Nature's Way
Kelp Whole Thallus 600 mg	Nature's Way
Kelp Whole Thallus 600 mg	Nature's Way
Kelp Whole Thallus 600 mg	Nature's Way
Sea Kelp with 200 mcg of Iodine	Puritan's Pride
Sea Kelp Enhanced	Dr. Berg
Iodine	Performance Lab
Bladderwrack Whole Thallus 580 mg	Nature's Way
St. John's Wort-IMT	SP Standard Process