Optimum Immune Booster provides the ingredients to promote a healthy immune system. Includes Vitamin C a powerful antioxidant, Zinc an essential mineral and Echinacea which may shorten the duration of a cold.
Provides Antioxidant Support†
Immune System Support†
For additional formula information, view the Supplement Facts panel.
All Windmill supplements are manufactured in the United States in an FDA-inspected facility whose cGMP (current Good Manufacturing Practice) are independently verified by qualified certification organizations.
Free of artificial colors, flavors and preservatives, Windmill is a trusted name that has been providing America with quality supplements for over 45 years.
Serving Size: 3 Capsules
Amount Per Serving % DV
Vitamin C (as ascorbic acid) 180 mg 200%
Zinc (as zinc citrate) 23 mg 205%
Echinacea Purpurea Extract (herb) 900 mg **
American Ginseng (panax quinquefolius) Extract (root) 225 mg **
Reishi Mushroom (ganoderma lucidum)(fruiting body) 225 mg **
Other Ingredients: Gelatin, Rice Flour, Stearic Acid, Silicon Dioxide, Magnesium Stearate (vegetable
FREE OF: WHEAT, SOY, ARTIFICIAL COLORS, FLAVORS OR PRESERVATIVES
SUGGESTED USE: Take three capsules daily as a dietary supplement or as directed by a healthcare professional.