---
product_id: 536895931
title: "HistaQuel - Dual-Action Histamine & Mast Cell Support Formula - Clinically Researched Flavonoid & Herbal Formula with Stinging Nettle & Black Cumin Seed Oil, 120 Capsules"
brand: "researched nutritionals"
price: "19071 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Researched Nutritionals"
url: https://www.desertcart.is/products/536895931-histaquel-dual-action-histamine-and-mast-cell-support-formula-clinically
store_origin: IS
region: Iceland
---

# 20x enhanced quercetin absorption 6 potent flavonoids & herbs Clinically researched dual complexes HistaQuel - Dual-Action Histamine & Mast Cell Support Formula - Clinically Researched Flavonoid & Herbal Formula with Stinging Nettle & Black Cumin Seed Oil, 120 Capsules

**Brand:** researched nutritionals
**Price:** 19071 kr
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your allergy defense with science-backed, herbal precision!

## Quick Answers

- **What is this?** HistaQuel - Dual-Action Histamine & Mast Cell Support Formula - Clinically Researched Flavonoid & Herbal Formula with Stinging Nettle & Black Cumin Seed Oil, 120 Capsules by researched nutritionals
- **How much does it cost?** 19071 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/536895931-histaquel-dual-action-histamine-and-mast-cell-support-formula-clinically)

## Best For

- researched nutritionals enthusiasts

## Why This Product

- Trusted researched nutritionals brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Action Immune Support:** Targets mast cells and histamine for balanced allergy relief
- • **Ultra-Absorbable Flavonoids:** Quercetin absorption increased 20-fold vs. standard supplements for maximum impact
- • **Clinically Researched Formula:** Backed by science with quercetin phytosome & fisetin for proven efficacy
- • **Herbal Histamine Blocker Complex:** Black cumin seed & stinging nettle leaf competitively inhibit histamine receptors
- • **Clean, Allergen-Free & Vegetarian:** Non-GMO, free from common allergens, perfect for mindful wellness routines

## Overview

Researched Nutritionals HistaQuel is a dual-action, clinically researched supplement combining two proprietary complexes to support healthy mast cell function and histamine response. Featuring six potent flavonoids and herbs including black cumin seed oil and stinging nettle, it offers 20x enhanced quercetin absorption for superior immune and allergy support. Vegetarian, non-GMO, and free from major allergens, HistaQuel is designed for professionals seeking effective, clean, and science-driven histamine balance.

## Description

Buy Researched Nutritionals HistaQuel - Dual-Action Histamine & Mast Cell Support Formula - Clinically Researched Flavonoid & Herbal Formula with Stinging Nettle & Black Cumin Seed Oil, 120 Capsules on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: These are terrific. - I have been taking these in place of OTC antihistamines. These work well without making me feel tired or anxious. I definitely recommend these.
Review: My doctor recommends this. - My doctr recommends this.

## Features

- Healthy Mast Cell and Histamine Support - HistaQuel provides a multi-faceted, systemic approach to immune support. It uses two proprietary complexes, and is designed to help support healthy mast cell function and histamine response.*
- What Is A Mast Cell? - Mast cells help generate and release histamine. HistaQuel's Mast Cell Secure Complex uses clinically researched ingredients like quercetin phytosome and fisetin supplements to promote healthy histamine production and absorption.*
- Herbal Histamine Blocker Complex - The HistaCheck complex uses black cumin seed extract and stinging nettle leaf to block histamine receptors (via competitive inhibition) and support your immune system's response to allergens.*
- Six Clinically Researched Flavonoids & Herbs - Histaquel uses flavonoids supplements from herbs like black cumin seeds. The quercetin supplements in this formula have also demonstrated 20 times increased absorption compared to standard Quercetin (in published research).*
- Vegetarian and Non-GMO - This mast cell and histamine supplement is manufactured without milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soy, or gluten. Produced in a facility that may process other ingredients containing these allergens.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0C2WKSJ8P |
| Best Sellers Rank | #42,791 in Health & Household ( See Top 100 in Health & Household ) #22 in Nettle Herbal Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (103) |
| Date First Available  | April 18, 2023 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | RN167 |
| Manufacturer  | Researched Nutritionals |
| Product Dimensions  | 2.5 x 2.5 x 4.5 inches; 4 ounces |

## Product Details

- **Brand:** Researched Nutritionals
- **Diet Type:** Vegetarian
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 0.25 Pounds
- **Item dimensions L x W x H:** 2.5 x 2.5 x 4.5 inches
- **Primary Supplement Type:** Mast Cell Support Capsules
- **Product Benefits:** Mast Cell Support
- **Special Ingredients:** Mast Cell Secure Complex, HistaCheck Complex
- **Unit Count:** 120 Count

## Images

![HistaQuel - Dual-Action Histamine & Mast Cell Support Formula - Clinically Researched Flavonoid & Herbal Formula with Stinging Nettle & Black Cumin Seed Oil, 120 Capsules - Image 1](https://m.media-amazon.com/images/I/710NGJ47A-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ These are terrific.
*by T***A on November 26, 2025*

I have been taking these in place of OTC antihistamines. These work well without making me feel tired or anxious. I definitely recommend these.

### ⭐⭐⭐⭐⭐ My doctor recommends this.
*by D***4 on December 7, 2025*

My doctr recommends this.

### ⭐⭐⭐⭐⭐ Great product!
*by C***G on August 1, 2025*

Works great!

## Frequently Bought Together

- Researched Nutritionals Flavanoids Supplements & Herbs for Immune Support - HistaQuel - with Stinging Nettle Leaf & Black Seed Oil to Promote a Healthy Histamine Response (120 Capsules)
- Researched Nutritionals ATP 360 Mitochondrial Supplements - ATP Supplements with Coq 10 & Vitamins for Energy Support - Help Repair Mitochondrial Membranes (90 Capsules)
- Researched Nutritionals CytoQuel with N-Acetyl Cysteine, Herbal Supplements & Turmeric Extract - Promote Healthy Cytokine Function for Immune Support, Sleep & Physical Comfort (90 Capsules)

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---

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