Est. 1973 Immune Support Dietary Supplement Lab Verified A Brighter Way Since 1973, we've scoured the globe for the highest quality ingredients, connecting you with the most efficacious supplements that help you live brighter and embrace the moments that matter most. Triple Strength SambuActin tablets are coated with a special bilberry/stevia coating that enhances the flavor of the tablets and makes them easier to swallow. Slight color variation in the natural bilberry coating is normal.