---
product_id: 70624734
title: "Bloom City Professional Grade 12% Hydrogen Peroxide Growing Supplement Quart (32 oz)"
brand: "bloom city"
price: "€ 44.81"
currency: EUR
in_stock: false
reviews_count: 7
category: "Lawn Garden"
url: https://www.desertcart.nl/products/70624734-bloom-city-professional-grade-12-hydrogen-peroxide-growing-supplement-quart
store_origin: NL
region: Netherlands
---

# Bloom City Professional Grade 12% Hydrogen Peroxide Growing Supplement Quart (32 oz)

**Brand:** bloom city
**Price:** € 44.81
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Bloom City Professional Grade 12% Hydrogen Peroxide Growing Supplement Quart (32 oz) by bloom city
- **How much does it cost?** € 44.81 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/70624734-bloom-city-professional-grade-12-hydrogen-peroxide-growing-supplement-quart)

## Best For

- bloom city enthusiasts

## Why This Product

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

## Description

Size:Quart (32 oz)
            
          
          
        
      
    
  


        
        
     
	       
     

     
                              
     
       	       
        
         
        
        	
        	
        		
        			Bloom City&#x2019;s Hydrogen Peroxide formulation contains a strong and natural form of hydrogen peroxide. It will increase the oxygen levels in feed water to provide vital oxygen for root systems or just for general health. Hydrogen Peroxide is designed for use in hydroponic gardens as well as soil gardens. It can also be used as a powerful cleaning agent for antimicrobial and antifungal purposes. Other hydrogen peroxide brands use lower concentration formulas, which can break down in watering reservoirs. Bloom City&#x2019;s Hydrogen Peroxide is strong and stable, which means your feed water will hold higher oxygen levels all the way into the root zone. Bring more predictability and consistency to your grow with our premium Hydrogen Peroxide formulation Bloom City nutrient systems are an ultra-premium line designed for the craft grower. Our nutrients and supplements are simple to use and produce amazing results. Leave behind the confusing and dirty world of Big-Ag fertilizers and upgrade to Bloom City. Bloom City&#x2019;s products are made in America from the highest quality sources by a small team of passionate plant scientists. All our ingredients are better for plants, better for you, and better for the planet. Bloom City is simply the best choice for the conscientious grower.

## Features

- SUPPLEMENTS OXYGEN IN YOUR ROOT ZONE: Roots need oxygen to grow, just like everyone else. Bloom City’s H2O2 is a great source of dissolved oxygen for root systems and general health
- HIGHLY CONCENTRATED AND SAFE FORMULA: Just a few drops per gallon of fresh water for every watering will provide an ample amount of oxygen in your root zone
- POWERFUL ANTISEPTIC: Bloom City’s Hydrogen Peroxide is formulated from high quality professional grade sources, and can also be used to clean and protect from all kinds of contaminants
- HIGHEST QUALITY, MOST POTENT, BEST VALUE, BIGGEST YIELD: Bloom City’s ingredients are better for plants, better for you, and better for the planet. Simply the best choice for the conscientious grower
- FORMULATED AND MADE IN THE USA: Designed by botanists and plant chemists in Seattle, Washington. Bloom City chooses only the highest quality ingredient sources and manufacturing methods to create the world’s best craft growing nutrient systems

## Images

![Bloom City Professional Grade 12% Hydrogen Peroxide Growing Supplement Quart (32 oz) - Image 1](https://images-na.ssl-images-amazon.com/images/I/41oEvmIUR2L.jpg)
![Bloom City Professional Grade 12% Hydrogen Peroxide Growing Supplement Quart (32 oz) - Image 2](https://images-na.ssl-images-amazon.com/images/I/51OxfwsELYL.jpg)
![Bloom City Professional Grade 12% Hydrogen Peroxide Growing Supplement Quart (32 oz) - Image 3](https://images-na.ssl-images-amazon.com/images/I/517otvEwADL.jpg)
![Bloom City Professional Grade 12% Hydrogen Peroxide Growing Supplement Quart (32 oz) - Image 4](https://images-na.ssl-images-amazon.com/images/I/519TkrpPt6L.jpg)
![Bloom City Professional Grade 12% Hydrogen Peroxide Growing Supplement Quart (32 oz) - Image 5](https://images-na.ssl-images-amazon.com/images/I/51DLj0XS3OL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bottle leaked all over inside of box and burned me and they replaced it free
        
*by N***K on February 21, 2019*

So basically I get my first bottle of this stuff and on a rainy day. Foolishly I thought maybe rain had soaked inside the box but nope it was a leaky/faulty cap. I get the HP professional grade on my hands and as they turn white and it burns me it  dawns on me that this bottle leaked.  I washed everything but still have a faulty cap and lip area that I have to be careful with and lost a fair amount of the solution via delivery.  Also not super pleased I have to use a teaspoon per gallon of water when I thought it was only going to be a few drops.  I know everyone makes mistakes IE: faulty bottle but I assume this will work as advertised after all it's just a chemical reaction.  Will it make my  plants grow better? I figure it can't hurt and easy to apply.  Next time I just buy a gallon at 3% solution for less money and get the same amount once mixed unless Bloom hooks me up somehow I doubt I will be  a loyal customer. This is the 2nd product I got from them. 1st one didn't leak.  UPDATE: They read this review and sent me another bottle for free. I give this 5 star for service and standing by your product.
  

### ⭐⭐⭐⭐⭐ Helped with some algae forming at top of soil
        
*by A***E on January 7, 2019*

This product helped with the green buildup at the top of the soil and might of helped the root zone as well. A decent new product. They also have good Calcium/magnesium and cold pressed kelp. This could help with root rot in partnership with a root stimulant
  

### ⭐⭐⭐⭐⭐ It works
        
*by D***S on February 3, 2019*

It works ! I bought this to whiten my teeth . So far so good. I recommend this product!
  

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/70624734-bloom-city-professional-grade-12-hydrogen-peroxide-growing-supplement-quart](https://www.desertcart.nl/products/70624734-bloom-city-professional-grade-12-hydrogen-peroxide-growing-supplement-quart)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-27*