yep - its the same basic stuff
just different methods of extraction and purity
the best ones are steam distilled rather than solvent extracted - and organic would be my preference - since PFAS ( forever chemicals ) are a major components of pesticides - and if used on the herb - these will likely be concentrated by the extraction process into the product -
but the problem is there is no regulation so they can print whatever they like on the bottle / add and no-one holds them to account
i am in the UK also and have just had to do trial and error to find a good product
there was this one -
https://oliveleaf.co.uk/shop/immune-support/oreganol-p73-oil-super-strength-13-5ml/but they would not disclose how much actual essential oil there was in it vs carrier oil - which i took to mean not very much - and i don't like that kind of lack of transparency so i ditched it
i am currently using this
https://spring-blossom.co.uk/products/oil-of-oregano-pure-undiluted
i have tried 3 or 4 different brands and it is the only one i have tried that i think is actually pure essential oil - no carrier oil / dilution
its approx 5x as strong as the branded product above and half the price
(Note- do not use it undiluted - burned my mouth for days - put 1 drop on a spoon - then add a spoonful of olive oil and take them together )
it seems most essential oil companies make the rest of the supplement business look honest by comparison!