Is there any other commercial source for s-isomer other than brand name Ketanest S? If so, name it and provide evidence. Otherwise, if you have not received your s-isomer ketamine in a Ketanest S vial, which you've compared to legit photographs (or some other correlative), it must be assumed your s-isomer ketamine was an illicit custom synthesis or TOTAL FUCKING BULLSHIT. In both legit cases, you MUST have paid quite a bit more for your product. If you didn't pay more you most likely didn't use s-isomer (stress on "most"). Now, everyone who has posted they've used s-isomer, did the conditions under which you used it meet these criteria? If you think these criteria are unreasonable, why? If you've answered why, what do you propose as an alternative criterion for determining you've used S in the past (and for fuck's sake, don't give an answer comparable to "I trust my source")?
What profit motives are there for selling as s-isomer? That's obvious if you're reading this thread. Why should you be skeptical of your own experience?: maybe because you've used a compound that blocks signals to the brain and you want to believe you've not been ripped off. I'm not saying there isn't legit s-isomer out there, I'm saying, you, the person on the internet reading this, shouldn't be confident you've had it if you can't provide what I've asked for.
EDIT: yes I've used supposed s-isomer in the form of a small sample a few times, and, yes, it was from a trusted source and it did feel different, but not in the anticipated way and it wasn't more potent as expected. I'm still agnostic as regards the matter. The difference could have easily been owed to bias.