Zea-Tein 20/20

Zea-Tein 20/20 and 5 near-identical products are sold under 3 different brand names — a near-twin Formula Twins cluster.

Product	Brand
Zea-Tein 20/20	Source Naturals
Natural Lutein 20 mg	Freeda
Quick Brain Nootropic	Life Extension
Quick Brain Nootropic	Life Extension
Zea-Tein 20/20	Source Naturals
Quick Brain Nootropic	Life Extension