Platinum Skin & Allergy is a potent formula that may be helpful in horses with seasonal allergies. Allergies can appear both in the skin as well as the respiratory airways in horses generally from exposure to allergens like mold, spores and insect bites. Platinum Skin & Allergy formula works by helping to maintain a healthy immune system and providing ingredients like quercetin, a naturally-occurring antioxidant, to maintain healthy histamine levels.