Hydrogen peroxide – the same stuff ... it’s very difficult and expensive to obtain peroxide in concentrations above 3% or so. That’s alright with [Charlie], though, because he’s come ...

If you have some hydrogen peroxide in your medicine cabinet, it’s likely a 3 percent concentration. When swallowed, 3 percent hydrogen peroxide can cause stomach irritation and even chemical ...

Mix 1 part hydrogen peroxide (3%) with 2 parts water. Swish in your mouth for 30 seconds, then spit it out. Do not swallow. A saltwater rinse is a gentler alternative. If the swelling lasts longer ...

Or smelling less than pleasant? Hydrogen peroxide to the rescue! Just add one cup of 3 percent hydrogen peroxide solution (it's probably the kind you have already, but double-check) to your ...

There’s typically a higher percentage of hydrogen peroxide in a whitening gel or strip than there will be in toothpaste, but the best option for you will be something that fits with your lifestyle.