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There are several medical techniques available for skin lightening. A person can rub Vitamin C on their skin to help it. Also Hydrogen Peroxide can help lighten skin.
Yes, hydrogen peroxide can be used for lightening hair. However, it will also bleach skin and probably then is not advisable for use on the arms.
For household use a solution of 3% is available. Higher concentrations are 30% for chemical and medical use and up to 70% (or anything in between) for industrial use.
No. Peroxide is a solution of hydrogen peroxide (H2O2) in water. Ammonia (NH3) is completely different.
They are different compounds, although all of them contain the same peroxide ions.
No, (hydrogen) peroxide and ammonia are two different chemicals.
It is possible to lighten the hair using regular hydrogen peroxide, but it will only lift about one level and will need to be repeated multiple times for a very light shade to result. Hair bleach + developer is the best way to go for lightening hair.
Hair is made up of "layers". These layers contain the underlying pigments in hair. Pale yellow all the way to blue. Depending on how dark the hair is. The lightener (peroxide) eats through the blue, the red, the orange and so on depending on how light you're going. (This is also why some people get 'orange' hair when going lighter.) It weakens/destroys theses layers. Everyone has different hair textures and strengths. The ''levels" are different from person to person. And there are different levels of peroxides used for lightening. If making the choice to go lighter, go to a professional.
No, hydrogen peroxide and alcohol are two very different substances.
No, No you cannot. .... no you can't- but you can mix 10 with 30 volume! These strengths would equal 20 :)
Chemically speaking, a peroxide is a molecule which contains two oxygen atoms bonded together by a single bond. Hydrogen peroxide is one common peroxide, but there are many others. The oxygen-oxygen bond is fairly weak, and peroxides tend to be somewhat unstable.
Water is H2O and hydrogen perioxide is H2O2 hydrogen peroxide has one more oxygen atom than water.