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Nature's Sunshine Histablock Allergy Support 90 caps

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Nature's Sunshine Histablock Allergy Support

Availability: In stock

90 Caps

USD 25.69

USD 19.27

(You Save: 25%)

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HistaBlock provides nutrient support for a healthy respiratory system which helps the body combat irritants, pollutants and toxins which it is exposed to on a daily basis. Stinging nettle is well-known for its support against seasonal airborne allergens.


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Product Description


  • Supports the body in times of respiratory stress. 
  • Supports the body to maintain a healthy mucous membrane. 
  • Supports free breathing and may help reduce unpleasant symptoms associated with irritants.
  • Maintains open nasal passageways.
  • Minimises the effect of irritants and pollutants.

How It Works:

HistaBlock contains herbs and nutrients that support the healthy functioning of the respiratory system, especially as the body deals with environmental irritants, pollutants and toxins.

Stinging nettle has a long history of use to support against seasonal airborne substances. HistaBlock also provides antioxidant support to help stabilize mast cells.

Quercetin is an antioxidant well-known for its benefits to maintaining respiratory health. This antioxiant may help stabilize mast cells which release histamine compounds when they are exposed to irritants. Thus Quercetin may have an antihistamine-like effect.

Bromelain is a proteolytic enzyme that works to help reduce swelling of mucous membranes during times of respiratory stress.

Bitter orange contains a compound called synephrine, which helps the body to support open airways.

Detailed Product Information


Nature's Sunshine


Amount Per Serving:
Serving Size: 2 capsules
Proprietary Blend 540 mg
Nettle leaves (Urtica dioica)
Quercetin (from Sophora japonicafruit)
Bitter Orange Fruit (Citrus aurantium)
Bromelain (from pineapple fruit, Ananas comosus

Other Ingredients: Capsule (gelatin, water), dicalcium phosphate, cellulose (plant fibre), magnesium stearate (vegetable), silicon dioxide (powdered silica).

Usage Instructions

Take two (2) capsules twice daily.

This product contains Gelatin.


Any product information or advice on this site is provided for informational purposes only and should not be used as a substitute for the advice provided by your own medical practitioners. You should not use the information contained here for diagnosing or treating a health problem or disease. You should read all product information carefully before purchasing and if you suspect you have a medical problem, promptly consult your heath-care professional. Prices, Specification and Services are subject to change without prior notice. Technical Specifications and Features are for guidance only and cannot be guaranteed accurate. Every care has been taken to provide accurate details on this web site, however minor discrepancies may appear.

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