Nature’s Sunshine HistaBlock | Respiratory Support Supplement | Supports Airways & Blocks Irritants | Antioxidant Strength | Seasonal Allergy Help | Natural Respiratory Function Aid 90 Capsules

Price: $32.99 - $28.95
(as of Jan 18, 2026 21:27:33 UTC – Details)

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Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 3.7 x 2 x 1.7 inches; 2.4 ounces
Date First Available ‏ : ‎ June 6, 2017
Manufacturer ‏ : ‎ Nature’s Sunshine
ASIN ‏ : ‎ B000PJFTL6
Best Sellers Rank: #21,062 in Health & Household (See Top 100 in Health & Household) #6 in Nettle Herbal Supplements
Customer Reviews: 4.6 4.6 out of 5 stars (1,646) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

Natural Support for Seasonal Changes: Our formula provides a powerful herbal blend formulated to help manage seasonal irritation symptoms. Stinging nettle and other key ingredients help promote healthy respiratory function and provide relief from discomfort.
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