Researched Nutritionals HistaQuel - Mast Cell Histamine Support - 120 Capsules Support a Balanced Histamine Response Immune Health Naturally with HistaQuel If you struggle with seasonal allergies, histamine sensitivity, or an overactive immune response, HistaQuel offers a gentle yet powerful way to support your body from the inside out. This unique formula is designed to promote healthy mast cell function and help regulate your body’s histamine response—so you can feel more comfortable, clear, and in control. What Are Mast Cells—and Why Do They Matter? Mast cells play a key role in your immune system by releasing histamine. While histamine is helpful in small amounts, too much can lead to unwanted symptoms like itching, sneezing, and inflammation. That’s where HistaQuel comes in. Dual-Action Plant-Based Support HistaQuel uses two specialized blends: Mast Cell Secure Complex with advanced forms of quercetin phytosome and fisetin to help your body regulate how much histamine it makes and absorbs. HistaCheck Complex, a herbal blend featuring black cumin seed extract and stinging nettle leaf, works like a natural antihistamine—helping block histamine receptors and ease your response to allergens. Powered by Research-Backed Ingredients With six potent plant-based compounds and highly absorbable flavonoids, HistaQuel delivers real results. In fact, the form of quercetin used in this supplement offers up to 20 times better absorption than standard quercetin—making it more effective where you need it most. Clean, Conscious, and Allergy-Friendly HistaQuel is vegetarian, non-GMO, and made without common allergens like dairy, gluten, soy, or nuts. It's thoughtfully formulated for those looking for a natural and science-backed way to support their immune system and histamine balance.