VitaTree Seasons Support (formerly know as Vitatree Allergy Formula) is a completely natural, non-drowsy herbal supplement that helps support a healthy immune system. It contains natural herbal medicines including Stinging nettle, Quercitin from the Sophora japonica flower, and Butterbur. Vitatree Seasons Support helps to provide support to the sinus and nasal health, without causing drowsiness. It contains natural ingredients that help support healthy histamine levels. The formula is gentle on the stomach and does not contain any fillers or flow agents like magnesium stearate. It is important to support the immune system during different seasons. The often-overwhelmed immune system, which can be due to toxicity in the body, starts to react to things in the environment that would normally not affect it. Simple things such as pet dander, dust mites, mould, grasses, pollens, ragweed, trees, flowers, weeds, and even some foods can trigger some people who are sensitive.