The heroin you get in the usa isn't the same H that most of Europe gets. US H is #4.
Afghani H is almost always #3 which is what you'll get in the UK. You can't inject it without adding a acid but it can be smoked on foil unlike #4. ( usa also has black tar H, different process.
In UK you can make big Big money dealing H even as a small timer. But be prepared for trouble from cops and robbers.
Don't think fentanyl is really in the UK much.
I know but in Canada there has been an increase.
It's the very potent Afghan white heroin not brown powder or black tar heroin.
Some nutcase dealer sold it as cocaine few years ago in Amsterdam several British tourists died after snorting it.
