Where in the UK can I get hold of bog-standard Hydrogen Peroxide?

A good question I always keep hydrogen peroxide in 1st aid box , as hospitals use it as a disinfectant , the last time I bought some was about a year ago from the chemist , although when I asked for it I was met with suspicion ? although I was served with 3% pv , this was not long after the " Nail bomber " was arrested for carrying this substance on to a plane !! so now you see any one who uses or requests this product is now "tarred" with the same brush unfortunately or fortunately ? so now perhaps all chemists have been instructed not to sell it for those reasons ?