---
product_id: 7167025
title: "HistaBlock | Respiratory Support Supplement | Supports Airways & Blocks Irritants | Antioxidant Strength | Seasonal Allergy Help | Natural Respiratory Function Aid 90 Capsules"
brand: "nature's sunshine"
price: "283 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Nature's Sunshine"
url: https://www.desertcart.ro/products/7167025-histablock-respiratory-support-supplement-supports-airways-and-blocks-irritants-antioxidant
store_origin: RO
region: Romania
---

# Powerful antioxidant & anti-inflammatory enzymes 90 capsules of potent herbal blend Blocks irritants & supports airways HistaBlock | Respiratory Support Supplement | Supports Airways & Blocks Irritants | Antioxidant Strength | Seasonal Allergy Help | Natural Respiratory Function Aid 90 Capsules

**Brand:** nature's sunshine
**Price:** 283 Lei
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe freely, live fully — your natural defense against seasonal irritants!

## Quick Answers

- **What is this?** 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?** 283 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/7167025-histablock-respiratory-support-supplement-supports-airways-and-blocks-irritants-antioxidant)

## 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

- • **Clean Airway Support:** Synephrine-rich bitter orange promotes open airways for effortless respiration.
- • **Gentle Yet Effective:** Non-drying, natural alternative to OTC antihistamines, ideal for sensitive immune systems.
- • **Inflammation Fighter:** Bromelain enzyme reduces mucous membrane swelling, easing breathing and congestion.
- • **Trusted Herbal Science:** Formulated by Nature’s Sunshine with rigorous quality control and decades of botanical expertise.
- • **Seasonal Allergy Shield:** Harnesses stinging nettle & bitter orange to naturally defend your respiratory system during peak allergy seasons.

## Overview

Nature's Sunshine HistaBlock is a premium respiratory support supplement featuring a scientifically-backed blend of stinging nettle, bromelain, and bitter orange. Designed to reduce allergy symptoms and promote healthy airway function, this 90-capsule formula offers antioxidant strength and natural relief from seasonal irritants without the harsh side effects of conventional antihistamines.

## 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: Natural and effective for allergies and congestion - Works great for everyday allergies and congestion. No side effects.
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.

## 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 |
| Best Sellers Rank | #23,175 in Health & Household ( See Top 100 in Health & Household ) #8 in Nettle Herbal Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,650) |
| Date First Available  | June 6, 2017 |
| Is Discontinued By Manufacturer  | No |
| Manufacturer  | Nature's Sunshine |
| Product Dimensions  | 3.7 x 2 x 1.7 inches; 2.4 ounces |

## 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

![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

### ⭐⭐⭐⭐⭐ Natural and effective for allergies and congestion
*by J***N on January 14, 2026*

Works great for everyday allergies and congestion. No side effects.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Works great
*by A***R on January 1, 2026*

I have been using this for years, it really helps with my allergies.

## 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 Romania*
*Store origin: RO*
*Last updated: 2026-02-03*