Ridgecrest Herbals SinusClear® is a patented herbal blend that features mullein leaf, astragalus root, olive leaf extract and more. This blend is formulated to promote healthy bronchial and immune system function. Features AvailaBlend™, a patented herbal blend that promotes optimal nutrient absorption. Contains no animal products, corn, dairy, gluten, GMO, soy, wheat or yeast. Made in the USA.