---
product_id: 253215557
title: "Daiwa PeakImmune4 Natural Immune Support Supplement | Enhances NK Cell Function with RBAC Rice Branand Mycelia Extract from Shiitake Mushrooms | Ultra Strength"
brand: "daiwa health development"
price: "£58.74"
currency: GBP
in_stock: true
reviews_count: 8
category: "Daiwa Health Development"
url: https://www.desertcart.co.uk/products/253215557-daiwa-peakimmune4-natural-immune-support-supplement-enhances-nk-cell-function
store_origin: GB
region: United Kingdom
---

# RBAC Rice Bran - natural immune defense Shiitake Mushroom Enzyme - potent immune booster Triple NK Cell Function - superior immune activation Daiwa PeakImmune4 Natural Immune Support Supplement | Enhances NK Cell Function with RBAC Rice Branand Mycelia Extract from Shiitake Mushrooms | Ultra Strength

**Brand:** daiwa health development
**Price:** £58.74
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your immunity game with nature’s ultimate defense!

## Quick Answers

- **What is this?** Daiwa PeakImmune4 Natural Immune Support Supplement | Enhances NK Cell Function with RBAC Rice Branand Mycelia Extract from Shiitake Mushrooms | Ultra Strength by daiwa health development
- **How much does it cost?** £58.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/253215557-daiwa-peakimmune4-natural-immune-support-supplement-enhances-nk-cell-function)

## Best For

- daiwa health development enthusiasts

## Why This Product

- Trusted daiwa health development brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** 30 capsules in a sleek bottle, designed for busy professionals who demand peak health on the go.
- • **Pure & Natural Formula:** Non-GMO, vegan capsules combining rice bran extract and shiitake mycelia for daily immune resilience.
- • **Next-Level Immune Boost:** Doubles B- and T-cell counts and triples NK cell activity—outperforming AHCC for elite immune support.
- • **Clinically Proven Immunity:** Backed by 75+ studies, PeakImmune4 elevates your natural defenses with science you can trust.
- • **Patented Process for Longevity:** Unique Daiwa formula enhances both natural and learned immunity to keep you thriving.

## Overview

Daiwa PeakImmune4 Ultra is a premium, natural immune support supplement featuring patented RBAC rice bran and shiitake mushroom extracts. Clinically validated to significantly boost B-, T-, and NK cell functions, it offers superior immune enhancement compared to AHCC. Non-GMO and vegan-friendly, this daily capsule supports robust immunity and longevity for health-conscious adults.

## Description

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Review: Worked as advertised. - Worked as advertised.
Review: Great product, too expensive - The product is great! I can not longer afford it because of the increase in price. No doubt there are quality substitutions at a reasonable price.

## Features

- A NATURAL IMMUNITY BOOST: PeakImmune4 is a immune support supplement derived from RBAC rice bran, a natural form of immune defense that also enhances NK cell function with over 75 studies proving its effectiveness and strength*
- BETTER THAN AHCC: Our PeakImmune4 immunity supplement may double B- and T- cell counts and triple NK cell function. PeakImmune4 also significantly increases nitric oxide production over AHCC*
- NATURAL IMMUNE SUPPORT FOR DAILY USE: PeakImmune4 immune support supplement contains purified water extract of rice bran combined with shiitake mushroom enzyme for a completely natural immune booster
- PATENTED NATURAL PROCESS: Daiwa Health Development has a unique formula for our immune support which can help natural and learned immunity fight off common and complex ailments, promoting health and longevity
- HIGH QUALITY INGREDIENTS: Daiwa’s innovative and patented natural process for producing PeakImmune4 is non-GMO and designed to promote optimal T cell activity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08NTLQ2G9 |
| Age Range Description | Adult |
| Allergen Information | Mushroom |
| Best Sellers Rank | #81,775 in Health & Household ( See Top 100 in Health & Household ) #474 in Mushrooms Herbal Supplements |
| Brand | Daiwa Health Development |
| Brand Name | Daiwa Health Development |
| Container Type | Bottle |
| Customer Reviews | 4.2 out of 5 stars 34 Reviews |
| Diet Type | Vegan |
| Dosage Form | Capsule |
| Flavor | PeakImmune4 Ultra |
| Item Dimensions | 1.81 x 1.73 x 4.17 inches |
| Item Form | Capsule |
| Item Weight | 0.04 Kilograms |
| Manufacturer | DAIWA HEALTH DEVELOPMENT |
| Manufacturer Part Number | DH-PI4-30 |
| Material Features | Natural |
| Material Type Free | Non-GMO |
| Number of Items | 1 |
| Primary Supplement Type | RBAC Rice Bran and Mycelia Extract from Shiitake Mushroom |
| Product Benefits | Immune Support |
| Special Ingredients | RBAC (Rice Bran Arabiloxylan Compund) |
| UPC | 851814001123 |
| Unit Count | 30.0 Count |

## Product Details

- **Brand:** Daiwa Health Development
- **Diet Type:** Vegan
- **Flavor:** PeakImmune4 Ultra
- **Item Form:** Capsule
- **Item Weight:** 0.04 Kilograms
- **Item dimensions L x W x H:** 1.81 x 1.73 x 4.17 inches
- **Primary Supplement Type:** RBAC Rice Bran and Mycelia Extract from Shiitake Mushroom
- **Product Benefits:** Immune Support
- **Special Ingredients:** RBAC (Rice Bran Arabiloxylan Compund)
- **Unit Count:** 30.0 Count

## Images

![Daiwa PeakImmune4 Natural Immune Support Supplement | Enhances NK Cell Function with RBAC Rice Branand Mycelia Extract from Shiitake Mushrooms | Ultra Strength - Image 1](https://m.media-amazon.com/images/I/71iq2Rrd8DL.jpg)
![Daiwa PeakImmune4 Natural Immune Support Supplement | Enhances NK Cell Function with RBAC Rice Branand Mycelia Extract from Shiitake Mushrooms | Ultra Strength - Image 2](https://m.media-amazon.com/images/I/71QzjhRk-eL.jpg)
![Daiwa PeakImmune4 Natural Immune Support Supplement | Enhances NK Cell Function with RBAC Rice Branand Mycelia Extract from Shiitake Mushrooms | Ultra Strength - Image 3](https://m.media-amazon.com/images/I/71m3KGRVGsL.jpg)
![Daiwa PeakImmune4 Natural Immune Support Supplement | Enhances NK Cell Function with RBAC Rice Branand Mycelia Extract from Shiitake Mushrooms | Ultra Strength - Image 4](https://m.media-amazon.com/images/I/71kdWKDfttL.jpg)
![Daiwa PeakImmune4 Natural Immune Support Supplement | Enhances NK Cell Function with RBAC Rice Branand Mycelia Extract from Shiitake Mushrooms | Ultra Strength - Image 5](https://m.media-amazon.com/images/I/71Tf2+SdwkL.jpg)

## Available Options

This product comes in different **Size, Flavor** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked as advertised.
*by B***Y on February 16, 2026*

Worked as advertised.

### ⭐⭐⭐⭐⭐ Great product, too expensive
*by B***K on September 15, 2025*

The product is great! I can not longer afford it because of the increase in price. No doubt there are quality substitutions at a reasonable price.

### ⭐ Do not recommend
*by N***D on September 21, 2025*

Serious allergic reaction, be careful!

## Frequently Bought Together

- Daiwa PeakImmune4 Natural Immune Support Supplement with RBAC Rice Bran and Mycelia Extract from Shiitake Mushrooms - Ultra Strength
- Daiwa Plasmanex 1 - Blood and Vein Circulation Supplements – Balance Circulation, Encourage Healthy Legs and Veins - 60 Vegan Capsules

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**Shop now:** [https://www.desertcart.co.uk/products/253215557-daiwa-peakimmune4-natural-immune-support-supplement-enhances-nk-cell-function](https://www.desertcart.co.uk/products/253215557-daiwa-peakimmune4-natural-immune-support-supplement-enhances-nk-cell-function)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-10*