I got my N from A analysed by EC. I got less concentration than expected: 51mg/ml (should be ~65mg/ml). Bottles are legit (confirmed by @RainAndSadness) and they were perfectly sealed. I flipped off the blue cap and did 2 x 2ml extractions (one for EC and another for a sleep test). I personally delivered the sample to EC next day in their place, no need to ship it. I got charged 50€, rather than 120€, it's a simple quantitative report in their website, only concentration is shown, nothing else, no pdf.
What might be the reason of this lower concentration? Should I have shaked the bottle before extracting N? Could it be that the analysis has a great error margin (20%) ? With that concentration I would still have 10g which in theory should be enough for my 75kgs(165lbs), or should I worry about it? Unfortunately I didn't ask A for the expiration date but it should last way longer than that. I stored the bottles in a box since then.I received N 1 month and a half ago.
I did also the sleep test. I can confirm the taste is horrible but manageable, didn't use AE, didn't have nausea or anything with so little dose (~2ml = ~100mg), brushed my teeth later which reduced the aftertaste. After 20-30 min I started to feel dizzy similar to being drunk, and then I just sleeped well more than 8 hours, no nausea or anything the day after.
I could attach the screenshots from the EC website but I'm concerned about any metadata stored that would reveal my identity. I sent these screenshots to @RainAndSadness.