---
product_id: 7167025
title: "Nature's Sunshine HistaBlock | Respiratory Support Supplement | Supports Airways & Blocks Irritants | Antioxidant Strength | Seasonal Allergy Help | Natural Respiratory Function Aid 90 Capsules"
brand: "nature's sunshine"
price: "7955 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Nature's Sunshine"
url: https://www.desertcart.is/products/7167025-natures-sunshine-histablock-respiratory-support-supplement-supports-airways-and-blocks
store_origin: IS
region: Iceland
---

# Powerful herbal blend Bitter orange supports open airways Bromelain enzyme reduces swelling Nature's Sunshine HistaBlock | Respiratory Support Supplement | Supports Airways & Blocks Irritants | Antioxidant Strength | Seasonal Allergy Help | Natural Respiratory Function Aid 90 Capsules

**Brand:** nature's sunshine
**Price:** 7955 kr
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe Boldly, Live Freely — Your Natural Allergy Ally

## Quick Answers

- **What is this?** Nature's Sunshine HistaBlock | Respiratory Support Supplement | Supports Airways & Blocks Irritants | Antioxidant Strength | Seasonal Allergy Help | Natural Respiratory Function Aid 90 Capsules by nature's sunshine
- **How much does it cost?** 7955 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/7167025-natures-sunshine-histablock-respiratory-support-supplement-supports-airways-and-blocks)

## Best For

- nature's sunshine enthusiasts

## Why This Product

- Trusted nature's sunshine brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Airway Optimizer:** Synephrine-rich bitter orange promotes clear, open breathing when you need it most.
- • **Inflammation Defense:** Bromelain enzyme targets mucous membrane swelling for fast, natural relief.
- • **Seasonal Allergy Shield:** Harnesses nature’s finest herbs to keep irritants at bay and breathe easy all year round.
- • **Trusted Quality & Purity:** Backed by decades of research and rigorous batch testing for consistent, safe support.
- • **Holistic Respiratory Support:** Combines antioxidant strength with natural sinus relief to empower your respiratory health.

## Overview

Nature's Sunshine HistaBlock is a premium respiratory support supplement featuring a potent blend of stinging nettle, bromelain, and bitter orange. Designed to naturally reduce seasonal allergy symptoms and promote healthy airway function, it offers antioxidant protection and supports sinus relief. With 90 capsules per bottle, this trusted formula is rigorously tested for quality and purity, making it a top choice for adults seeking effective, natural respiratory health support.

## Description

Buy Nature's Sunshine HistaBlock | Respiratory Support Supplement | Supports Airways & Blocks Irritants | Antioxidant Strength | Seasonal Allergy Help | Natural Respiratory Function Aid 90 Capsules on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Outstanding Ingredients and Quality Control 💚 - Powerhouses include: Quercetin Nettle Bromelain It’s difficult to explain why HistaBlock has been such a key component to my health without sounding like I’m giving medical advice. But in my experience, HistaBlock has helped reduce my inflammation and allergy symptoms. Symptoms from sinus congestion to wheezing. From regular discomfort to much more serious. Regular H1 and H2 OTC antihistamines are very drying to those of us with certain autoimmune conditions. This supplement works differently (from what I recall) by helping the body not overreact to the histamine and by mucous lubrication, moving the histamine out through normal functions. Natures Sunshine is a company known for research, for thoroughly investigating the growing conditions, harvesting, procurement and transportation of each and every ingredient. And measuring consistency of each batch. I’m not with the company, but over the years have attended several free educational seminars, taught by some Medical Doctors (internists, neurologists, cardiologists), Naturopathic Doctors (who treat world-class athletes), and one of their chemists. My family has used their products since 1980. My medical doctors know which minerals, herbs, vitamins I use and approve. Only caveat is I was told not to switch brands, as my doctors read and agreed to the specific supplements. Now my immunologist is taking Quercetin, too! Some parts of the world have used the components for thousands of years. If you aren’t familiar with the ingredients, they are well-studied and if you have life-threatening (or just annoying) allergies, you should consider reading some of the research done on nettle, quercetin, orange bitter and/or bromelain. If you have question on possible allergens with this product, I’ve called them before, it was easy process to confirm that it was safe for me. (Potato starch and wheat are often in capsules- which I must avoid.) Thanks for reading this novel. I hope it is helpful, and that you find what works best for you.
Review: knocks out most allergy symptoms fairly soon... - work v. well. Also helps me w/respiratory inflammation or other inflammation

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000PJFTL6 |
| Age Range Description | Adult |
| Best Sellers Rank | #18,699 in Health & Household ( See Top 100 in Health & Household ) #6 in Nettle Herbal Supplements |
| Brand | Nature's Sunshine |
| Brand Name | Nature's Sunshine |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 1,655 Reviews |
| Dosage Form | Capsule |
| Flavor | Orange |
| Item Dimensions | 3.7 x 2 x 1.7 inches |
| Item Form | Capsule |
| Item Weight | 0.15 Pounds |
| Manufacturer | Nature's Sunshine |
| Material Features | Natural |
| Model Name | e's Sunshine HistaBlock 90 Capsules |
| Number of Items | 1 |
| Primary Supplement Type | Non-specific |
| Product Benefits | Sinus Relief |
| Special Ingredients | Nettle |
| Total Servings Per Container | 45 |
| UPC | 099904007765 |
| Unit Count | 90 Count |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Nature's Sunshine
- **Flavor:** Orange
- **Item Form:** Capsule
- **Item Weight:** 2.4 ounces
- **Item dimensions L x W x H:** 3.7 x 2 x 1.7 inches
- **Primary Supplement Type:** Non-specific
- **Product Benefits:** Sinus Relief
- **Special Ingredients:** Nettle
- **Unit Count:** 90 Count

## Images

![Nature's Sunshine HistaBlock | Respiratory Support Supplement | Supports Airways & Blocks Irritants | Antioxidant Strength | Seasonal Allergy Help | Natural Respiratory Function Aid 90 Capsules - Image 1](https://m.media-amazon.com/images/I/7138XxCqZNL.jpg)

## Questions & Answers

**Q: Where is this product manufactured?**
A: Spanish Fork, Utah

**Q: Isn't this worthless without DAO in it?**
A: As per our manufacturer, Nature's Sunshine says, "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."  In addition Nature's Sunshine says, "As for if it works best with Diamine Oxidase you should ask an herbalist."

**Q: Which are the ingredients?**
A: The nettle leaf takes away the toxins and the brimelsin is an enzyme that helps inflammation.

**Q: Is this the same as D-Hist?**
A: It is not the same as D-Hist but contains similar ingredients.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Outstanding Ingredients and Quality Control 💚
*by W***B on November 21, 2024*

Powerhouses include: Quercetin Nettle Bromelain It’s difficult to explain why HistaBlock has been such a key component to my health without sounding like I’m giving medical advice. But in my experience, HistaBlock has helped reduce my inflammation and allergy symptoms. Symptoms from sinus congestion to wheezing. From regular discomfort to much more serious. Regular H1 and H2 OTC antihistamines are very drying to those of us with certain autoimmune conditions. This supplement works differently (from what I recall) by helping the body not overreact to the histamine and by mucous lubrication, moving the histamine out through normal functions. Natures Sunshine is a company known for research, for thoroughly investigating the growing conditions, harvesting, procurement and transportation of each and every ingredient. And measuring consistency of each batch. I’m not with the company, but over the years have attended several free educational seminars, taught by some Medical Doctors (internists, neurologists, cardiologists), Naturopathic Doctors (who treat world-class athletes), and one of their chemists. My family has used their products since 1980. My medical doctors know which minerals, herbs, vitamins I use and approve. Only caveat is I was told not to switch brands, as my doctors read and agreed to the specific supplements. Now my immunologist is taking Quercetin, too! Some parts of the world have used the components for thousands of years. If you aren’t familiar with the ingredients, they are well-studied and if you have life-threatening (or just annoying) allergies, you should consider reading some of the research done on nettle, quercetin, orange bitter and/or bromelain. If you have question on possible allergens with this product, I’ve called them before, it was easy process to confirm that it was safe for me. (Potato starch and wheat are often in capsules- which I must avoid.) Thanks for reading this novel. I hope it is helpful, and that you find what works best for you.

### ⭐⭐⭐⭐⭐ knocks out most allergy symptoms fairly soon...
*by K***R on January 31, 2026*

work v. well. Also helps me w/respiratory inflammation or other inflammation

### ⭐⭐⭐⭐⭐ Natural antihistamine
*by L***F on February 13, 2026*

This is like natural zertec or Claritin. Really helps dry me up so many times when I had allergies or sinus infection.

## Frequently Bought Together

- Nature's Sunshine HistaBlock | Respiratory Support Supplement | Supports Airways & Blocks Irritants | Antioxidant Strength | Seasonal Allergy Help | Natural Respiratory Function Aid 90 Capsules
- Nature's Sunshine Seasonal Allergy (Formerly ALJ Liquid) 2 FL Oz
- Nature's Sunshine Sinus Support EF, 100 Capsules

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---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-10*