Kelp

Kelp and 15 near-identical products are sold under 12 different brand names — a exact-twin Formula Twins cluster.

Product	Brand
Kelp	GNC Natural Brand
Sea Kelp	Puritan's Pride
Sea Kelp 150 mcg	Vitamin World
Kelp	NOW
Kelp	GNC SuperFoods
Sea Kelp 150 mcg	tnvitamins
Kelp	Douglas Cooper Co.
Icelandic Kelp	NaturesPlus
Iodine Tablets (from Sea Kelp) 150 mcg	Foster Regal
Iodine from Sea Kelp 150 mcg	Wonder Laboratories
Iodine from Sea Kelp 150 mcg	Wonder Laboratories
Kelp	DC
Kelp (Iodine) 150 mcg	Nature's Blend
Icelandic Kelp	NaturesPlus
Iodine from Kelp 150 mcg	Wonder Laboratories
Icelandic Kelp	NaturesPlus