the purity of "actual LSD" can vary a lot, and is more important than the purity of most other substances. I would expect it more likely to be as close to pure

the purity of "actual LSD" can vary a lot, and is more important than the purity of most other substances. I would expect it more likely to be as close to pure as possible by scientists at Sandoz than someone doing thumbprints at home. But Owsley apparently did a great job from what I hear =p