- Respiratory system support
- Quercetin may impact the effects of seasonal irritants and pollutants
- May support healthy airway passages
How It Works:
HistaBlock provides nutrients that support healthy respiratory function as the body battles irritants, pollutants and toxins. Stinging nettle provides well-known support against seasonal airborne substances. This formula provides antioxidant strength to help stabilize mast cells. The antioxidant quercetin has been used for its reputed effects in supporting the respiratory system. Quercetin may help stabilize cells that release compounds when exposed to irritants. Bromelain is an enzyme that works to help reduce the swelling of mucous membranes during times of respiratory stress. Bitter orange contains synephrine, which helps the body support open airways.
Nettle leaves, quercetin, Bitter orange fruit and bromelain.
Take 2 capsules with a meal twice daily.
- Free ground shipping is available on all orders $100 and over (excludes Alaska, Hawaii, US Territories, and International shipping).
- For orders less than $100, actual shipping rates will be calculated based on the selected delivery service.
- Nearly all orders are shipped with USPS Priority Mail or UPS Ground. Options for faster delivery service are available during checkout.
- Large orders for books may be sent with USPS Media Mail.
- Orders placed online will ship within 1-2 business days of purchase.
For more information about our shipping policy, please view our Customer Care page.