D-Hist

Blend of bioflavonoids, antioxidants, proteolytic enzymes and botanicals designed to support seasonal allergies caused by environmental allergens 
Quercetin- powerful flavonoid that support healthy histamine levels by stabilizing mast cells 
Bromelain- proteolytic enzyme that aids absorption of quercetin and support mucosal tissue health 
Sting Nettles Leaf- balances immune response in the airways and nasal passages 
N-Acetyl Cysteine- an amino acid precursor to glutathione to help reduce viscosity of the mucus for maintaining cleared airways and respiratory health 
Vitamin C- supports immune system by its ability to deactivate histamine.