(90 capsules), Stock No. 776

SKU: 776 Categories: , ,


Millions of us suffer from allergies triggered by all kinds of bothersome allergens. Whether they are indoor triggers such as dust or mites, or outdoor sources like weeds or grass, the bottom line remains: It’s no fun to have a reaction. We’re adding one more weapon to your herbal arsenal. HistaBlock can support the year-round allergy sufferer.

• Provides antioxidant strength to help stabilize mast cells.
• Supports free breathing and may help reduce unpleasantness associated with allergens.
• Provides nutrients that support the respiratory system in its battle against allergens, pollutants and toxins.
• Supports the body’s efforts to control inflammation and swelling of mucous membranes.

Stinging Nettle provides well-known support against allergic rhinitis in hay fever sufferers.

Quercetin, a bioflavonoid, has been used for its reputed effects in supporting the respiratory system. It is believed that this antioxidant helps stabilize mast cells, which contain the histamine released during an allergy attack. Breathe a sigh of relief.

Bromelain works as an anti-inflammatory to help reduce the swelling of mucous membranes during allergic reactions.

Fructus aurantia contains synephrine, which helps the body’s natural decongestant processes open up the airways. It also may reduce runny nose and watery eyes.

Nature’s Sunshine Advantage
Mast cells are responsible for the drastic reactions that occur during seasonal respiratory attacks. HistaBlock is a unique formula that helps stabilize these cells and inhibits swelling that occurs in the mucous membranes.

Recommended Use
For acute concerns: Take 1–2 capsules every two hours as needed, up to 12 capsules a day. As a maintenance measure: Take 1–2 capsules two to three times daily.


Don’t take if hypertensive or taking blood pressure medication.

Additional information

Weight 0.17 lbs

Nature's Sunshine


Nature's Sunshine