Hydrogen Peroxide Concentrations & Sizes Explained
Hydrogen peroxide concentrations and sizes, explained.
Hydrogen peroxide isn't one product. It's a range of concentrations, each suited to a different job. From the small brown bottle at the pharmacy to the concentrated formulas used in cleaning, plant care and water treatment, the strength and size change what it's for. Here's how it breaks down.
The common concentrations
3% hydrogen peroxide
Forsana Hydrogen Peroxide 3% is a food-grade hydrogen peroxide solution at 3% concentration, MPI approved (NZ Only). A versatile multipurpose product for the home and garden, effective as a disinfectant and sanitiser (NZ Only) for everyday cleaning, laundry whitening and stain removal, and plant care. Breaks down naturally into water and oxygen after use, leaving no chemical residue.
6% hydrogen peroxide
Forsana Hydrogen Peroxide 6% is a higher-strength food-grade hydrogen peroxide solution at 6% concentration, MPI approved (NZ Only). Suited to tougher disinfecting (NZ Only), cleaning and stain-removal tasks around the home and garden where extra strength is needed, while remaining food-grade and breaking down naturally into water and oxygen after use.
Higher concentrations (12%+)
Used in industrial and specialised settings. Not something you'll find on a pharmacy shelf, and not something we sell direct to households.
Why the 100ml pharmacy bottle isn't sold online
If you've bought hydrogen peroxide before, it was probably a small 100ml bottle from the pharmacy or supermarket. That size exists for a reason: it's a low-cost, general-purpose product meant for in-store, over-the-counter sale, not for shipping or online retail.
Forsana doesn't sell that bottle. What we make is a different category of product: stabilised, enhanced hydrogen peroxide formulated specifically for cleaning, plant care and water treatment, sold in sizes built for actual use, not just a first-aid drawer, in 500ml, 1L and 3L refills.
If you've come across our name while looking up hydrogen peroxide from a pharmacy, that's why: same base ingredient, very different product.
Frequently asked questions
Can I buy 100ml hydrogen peroxide online from Forsana?
No. The small 100ml bottle you'll find at a pharmacy or supermarket isn't part of our range. Forsana makes stabilised, enhanced hydrogen peroxide for cleaning, plant care and water treatment, sold in 500ml, 1L and 3L sizes.
What's the difference between pharmacy hydrogen peroxide and Forsana's?
Pharmacy hydrogen peroxide is a basic, general-purpose product sold in small quantities for topical or household use. Forsana's Everything Cleaner (3%) and Power Cleaner (6%) are food-grade, MPI-approved formulas built specifically for cleaning, in sizes designed for regular use rather than occasional top-ups.
Is 3% or 6% hydrogen peroxide stronger?
6% is roughly double the concentration of 3%, so it's more effective on tougher jobs like grease, grime and stains. 3% is better suited to everyday, general cleaning.
Where can I buy small hydrogen peroxide bottles?
Pharmacies and supermarkets typically stock small (around 100ml) bottles for general household or first-aid use. Forsana's cleaning-focused range is sold online in larger, refillable sizes, and in selected stores (see our store locator).
Pharmacy hydrogen peroxide vs Forsana
| Pharmacy/supermarket hydrogen peroxide | Forsana | |
|---|---|---|
| Typical size | 100ml | 500ml, 1L, 3L |
| Built for | General/topical use | Cleaning, plant care, water treatment |
| Formula | Basic | Enhanced and stabilised |
| Where sold | In-store only | Online, refillable |
| Approvals | Varies | Food-grade, MPI approved |