Zinc with Cinchona Bark

Zinc with Cinchona Bark and 7 near-identical products are sold under 8 different brand names — a exact-twin Formula Twins cluster.

Product	Brand
Zinc with Cinchona Bark	Lidtke
Zinc Chelate 30 mg	Integrative Therapeutics
Maxi Zinc 30	Maxi Health
Chelated Zinc 30 mg	Swanson
Zinc Glycinate Extra Strength	NuMedica
Zinc Chelate 30 mg	Nature's Way
Chelated Zinc	Bluebonnet
Amino Key Zinc	Life Zone