Nature’s Sunshine HistaBlock 90 Capsules

Bromelain – Bromelain is an enzyme that helps reduce the swelling of mucous membranes from allergies and during times of respiratory stress
Stinging Nettle – Our proprietary formula includes stinging nettle, which provides well-known support against seasonal airborne substances
Bitter Orange – Bitter orange contains synephrine, which helps the body support open airways
Natural Sinus Relief – HistaBlock provides nutrients that support healthy respiratory function as the body battles irritants, pollutants and toxins