Numi Tea’s Immune Boost Tea strengthens and fortifies using ingredients like echinacea, rosehip, ginger, cinnamon, dandelion root, dandelion leaf, and licorice. It’s a wonderful tea adn supplement in one! It’s even caffeine-free, so you can give your immuni-tea (get it?) a little boost before you tuck in for bed. Nothing like a late-night sip!