---
product_id: 70624737
title: "Alchemist H2O2 Liquid Oxygen 34% - 1 Gallon"
brand: "alchemist"
price: "€ 94.63"
currency: EUR
in_stock: false
reviews_count: 8
category: "Lawn Garden"
url: https://www.desertcart.pt/products/70624737-alchemist-h2o2-liquid-oxygen-34-1-gallon
store_origin: PT
region: Portugal
---

# Alchemist H2O2 Liquid Oxygen 34% - 1 Gallon

**Brand:** alchemist
**Price:** € 94.63
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Alchemist H2O2 Liquid Oxygen 34% - 1 Gallon by alchemist
- **How much does it cost?** € 94.63 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/70624737-alchemist-h2o2-liquid-oxygen-34-1-gallon)

## Best For

- alchemist enthusiasts

## Why This Product

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

## Description

Alchemist Liquid Oxygen H2O2 is composed of 34% hydrogen peroxide. Use with caution. Keep away from children. This product is excellent for cleaning hydroponic equipment, materials and grow areas. It is considered unlawful to sell, use or distribute this product in ways other than as claimed.

## Features

- Alchemist H2O2 Liquid Oxygen 34% 1 Gallon Single bottle
- Alchemist Liquid Oxygen H2O2 is composed of 34% hydrogen peroxide.
- Use with caution. Keep away from children.
- This product is excellent for cleaning hydroponic equipment, materials and grow areas.
- It is considered unlawful to sell, use or distribute this product in ways other than as claimed.

## Images

![Alchemist H2O2 Liquid Oxygen 34% - 1 Gallon - Image 1](https://m.media-amazon.com/images/I/41+pR3KuOaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product but DO NOT TOUCH the liquid!
            
*by B***E on September 2, 2019*

Opening the box I found that the plastic bag enclosing the bottle had some spillage in it and my hands got wet. It burned them and turned my skin white.  This stuff works extremely well. It kills Powdery Mildew and Molds as well as Spider, Russet and Broad Mites. I added 16 OZ to a garbage can with about 25 gallons of water to dunk my harvest branches in and rinsed in another can of plain water. Complete eradication without affecting the harvest.
  

### ⭐⭐⭐ Bad packaging; looks as advertised
            
*by S***N on August 3, 2019*

This arrived in a box wrapped with a lot of plastic. Inside was slightly wet, and as I took the plastic off there was some liquid, which sure enough stained my fingers white as high concentration hydrogen peroxide does. How hard is it to seal your liquids properly? So not happy about that.I did a quick density check and it looks like it roughly 34% hydrogen peroxide as advertised. So no complaints there.Fix your packaging!
  

### ⭐ Weeds largely unaffected by this, doubt its advertised strength.
            
*by T***J on August 26, 2019*

Looking for a weed killer that won't harm me or the environment -- diluted this to a 10+% mixture, and the weeds, after multiple sprays, were largely unaffected.  Increased the percentage of H2O2, reapplied, and weeds were weakened but holding on easily.  Switching to concentrated vinegar solution next.
  

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---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-17*