Immunoboost

Immunoboost and 5 near-identical products are sold under 4 different brand names — a near-twin Formula Twins cluster.

Product	Brand
Immunoboost	SimplyBest
Immune +	Higher Nature
Immune +	Higher Nature
Vitamin C & Zinc Complex with Black Elderberry	Higher Nature
Black Elderberry Effervescent Tablets	Sambucol
Vitamin C with Zinc	Member's Mark