No, but the oder is not strong.

HARRIS12% Concentrated Food Grade Hydrogen Peroxide, 128oz, for Kitchen, Bath, Laundry, Home and Garden

HARRIS12% Concentrated Food Grade Hydrogen Peroxide, 128oz, for Kitchen, Bath, Laundry, Home and Garden

Q: How much to use in a half gallon

It depends on what you are using it for. If you are diluting it to 3% then I dilute the 12% to 6% with an equal amount of water, and then dilute the 6% with an equal amount of water to get 3%. OR --- 4 oz of water to 4 oz of 12 % peroxide is 8 oz of 6% peroxide; 8 oz of 6% peroxide mixed with 8 oz of water is 16 oz of 3% peroxide. Most household uses don't call for more than 3% peroxide, but you can figure out what percentage you want and mix it with water accordingly. I keep a "whitening bucket" filled with water, some detergent, about 4oz of 12% peroxide in which I toss my white laundry items - wash cloths, dish towels, socks, bras, handkerchiefs, undershirts, T-shirts, and so on. Anything that needs whitening goes into the bucket and the entire bucket goes into the washing machine.

Q: I want to brighten the surface of a bathtub that has a non-slip coating in areas, which has discolored, will this help?

It works like a bleach. I would mix it half the hydrogen peroxide and half with water. Try a small area and see how it works. Mix only a small amount for the first time.

Q: Can you use this to pour down your drains in the bathroom and kitchen to kill drain gnats?

I don’t know but I have pored it down my drains

4.8/5

Product ID: 630383156

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Details

Brand
HARRIS
Item form
Liquid
Scent
Lemon
Specific uses for product
Grout
Material features
concentrated

💧12% ultra-concentrated power

🧴128oz bulk size with funnel

🧼Food-grade purity, no additives

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HARRIS 12% Concentrated Food Grade Hydrogen Peroxide, 128oz, for Kitchen, Bath, Laundry, Home and Garden with Easy Fill Funnel

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Description

✨ Elevate your clean game with powerhouse purity! 💧

4 X STRONGER CLEANING POWER - Experience deep stain removal and whitening with 12% concentration—quadruple the strength of standard peroxide.
BULK SIZE WITH EASY FUNNEL - Generous 128oz volume plus a convenient funnel lets you mix up to 4 gallons of ready-to-use cleaner.
SAFE FOR FOOD PREP SURFACES - Certified food-grade formula ensures your kitchen stays spotless and safe without harmful additives.
VERSATILE MULTI SURFACE USE - From grout to laundry, glass to garden, one bottle tackles all your cleaning challenges effortlessly.
ECO FRIENDLY ADDITIVE FREE - Pure hydrogen peroxide and deionized water mean no fragrances or chemicals—just clean you can trust.

This 128oz bottle of 12% food-grade hydrogen peroxide delivers four times the concentration of standard formulas, making it a potent, additive-free cleaner and stain remover safe for kitchen, bath, laundry, and garden use. Its bulk size and included funnel allow easy dilution for versatile, eco-friendly cleaning solutions.