There are some good pharma labs out there but there are also quite a few good underground labs about too.
Do you prefer pharma grade or underground?
What is your favourite lab?
Me personally prefer to use underground labs as they are not regulated like pharma grade and tend to be overdosed vials so getting stronger gear than what it says on the tin. Now I'm not saying all underground labs are good because they're not in fact some of them are unhygienic and dangerous and probably underdosed. But if you know where to look you don't come up against that problem.