×
Opti-Hist (Allergy Formula) is a broad-spectrum, powerful supplement aimed at providing support and protection against seasonal environmental challenges. Designed to utilize all-natural Nettle Extract to help control histamine levels‚ and the plant extracts, Bromelain, and Quercetin for mucus viscosity support, Opti-Hist also includes a synergistic blend of Zinc, Vitamin C, and D3 to help boost your body's immune response. Finally, the powerful antioxidant, N-Acetyl- Cysteine or NAC provides you protection from free radicals and supports the production of glutathione.