I’m sure that such shipping requires HAZMAT permits, and that the H2O2 is freshly manufactured (including being laced with stabilizers) and packaged.
Re H2O2 in alternative medicine (which I’m generally a big supporter of), what little I’ve read about it suggests it’s bunk. But nobody is going to outlaw off-the-shelf purchases of small bottles of 3% H2O2, and any alternative medicine practitioner who’s actually introducing anything stronger than that into a human being is a dangerous quack.
You do not know what you are talking about regarding alternative use. I know personally several people who have cured the cancer in their own bodies using 35% H2O2 food grade (not stabilized), building up to 25 drops 3 times a day, for an extended interval of time. It is not dangerous. I have tried it myself to see the effect on me (I experiment, but only on me). This is not new. Many have done it. Many have cured cancer with H2O2, and we are not talking about the ‘stabilized’ 3% stuff.
Google it.
And yes, shipping does require HAZMAT permits, but no big deal. Smaller quantities, gallons, can also be shipped, requiring same permits.