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Hydrogen Peroxide in toothepaste
Is it possible to add Hydrogen Peroxide to toothpaste for whitening function? If possible, how much it should be add to the formula?
Thank for every comments. -
7 Replies
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How will you keep it stable?
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It’s a dangerous substance to have in the lab. Many peroxides are explosive and can be created accidentally.
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it is possible, but in the EU at least it’s restricted to 0.1% (far too little to have a substantial effect), also, regardless of the concentration, you’d have to get the pH down to 2-3 for it to remain stable throughout the product’s shelf life
and a toothpaste that acidic would do appalling damage to the teeth
personally, I wouldn’t bother
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There are brands promoting this additive for teeth whitening. Without looking into patents, I’m thinking the ingredient to use wouldn’t be H2O2 itself, but a precursor such as (coated) potassium percarbonate, which would activate to peroxide once diluted enough with water. That would have to be the thing, else you would need that low pH Bill speaks of, which would not fly for reasons stated.
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There are actually quite a few on the market. Here’s an LOI for a Colgate toothpaste:
Sodium MonofluorophosphateInactive Ingredientspropylene glycol, calcium pyrophosphate, PVP, PEG/PPG-116/66 copolymer, PEG-12, glycerin, flavor, hydrogen peroxide, sodium lauryl sulfate, silica, tetrasodium pyrophosphate, sodium saccharin, disodium pyrophosphate, sucralose, BHT -
SLS! The enemy of your gums.
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Thank you very much for all of your comments, I’ve decided to kick out the H2O2 from the formula due to I cannot make it stable and it make a bad flavor to the product. I hope just the hydrated silica, sodium bicarbonate should be enough to reduce the coffee and cigarette plague form teeth.
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