Quercetin Bromelain Vitamin C Citrus Bioflavonoids Nettle Leaf Dietary Supplement Gluten Free Vegetarian Formula No Magnesium Stearate Helps Soothe Nasal Passages and Calm Histamine Production Provides Antioxidants to Support Healthy Immunity Promotes Healthy Breathing We create supplement formulas that balance the wisdom of nature and the progress of science, using clinically-tested nutrients that the body can easily absorb. Breathe-X provides sinus support and soothes nasal passages. Quercetin - Antioxidant properties help to promote healthy nasal mucosa cells and a normal inflammation response Bromelain - Helps maintain healthy sinus tissues Vitamin C - Antioxidant that supports immunity and normal histamine production Citrus bioflavonoids - Works with Vitamin C to promote blood vessel integrity and a healthy immune response Nettle leaf - Assistant in a healthy inflammation and immune response and calms histamine production