Does anybody no if the hydrogen peroxide that is used for the hydrogen peroxide douche is actually what hairdressers use?

I know there is food grade and regular and they have different grades. I think you may be talking about the grade used for douches vs the grade used by hairdressers

This is the hair dresser grade
http://www.using-hydrogen-peroxide.com/hairdressing-peroxide.html'

For douching and other personal use
Grade 3 is used

I hope somebody that knows more can answer