Liquid Vitamin D-3

Liquid Vitamin D-3 and 3 near-identical products are sold under 4 different brand names — a exact-twin Formula Twins cluster.

Product	Brand
Liquid Vitamin D-3	Douglas Laboratories
Vitamin D3 Liquid 10,000 IU	NHC Natural Healthy Concepts
Power Sunshine D3 10,000	Dr. Seth's Vitamin Vibrations
Liquid D3 10,000 IU	Davinci Laboratories