On 2015-07-06, Chris Hogg wrote:

I note that 35% H2O2 isn't available in the UK and more. Apparently
it's illegal to sell it. Maximum strength allowed these days is 12%.
So that would be 7.5ml of 12% in 10 litres.

Last time I bought some, the pharmacist told me they were *only*
allowed to sell 12% now --- i.e., you can't get 6% so you have to
dilute the stuff they sell in order to use it as a topical
antiseptic. Strange.