High- C Immune Boosting Tea- A stronger version of the Immune Boosting Tea. High in Vitamin C this tea blend is good to take through the winter or at the onset of a cold or flu. Ingredients: Hibiscus, Rose Hips, Lemongrass, Lemon Peel, Cinnamon Chips. 100g 1 teaspoon per cup of boiling water. Let steep for 5- 10 minutes.