NA Semax Amidate vs plain Semax, my two-week switch comparison

Posted by midwest_scientist in Cognitive & Nootropic - 10 points, 4 comments.

I finished my Adamax log a while back and wanted to try something a bit different, so I switched to N-Acetyl Semax Amidate at around 300 mcg intranasal, once in the morning and sometimes a second dose around lunch. Did this for two weeks straight.

Honestly the first thing I noticed is it feels smoother than what I remember from regular Semax. Less of that sharp jittery edge in the first 30 minutes. The acetyl and amidate modifications supposedly make it resist breakdown longer, and subjectively it did feel like the focus carried further into the afternoon. With plain Semax I usually felt a clear peak and then a drop-off around hour two or three.

For me the focus was good but maybe not as intense as Adamax. More of a clean, steady clarity. I could sit and work through analytical methods for a few hours without feeling pushed. No headaches this time, which was nice. A bit of nasal irritation on day one but that went away.

One thing I would change: I tried a second dose at 3pm once and had trouble falling asleep that night. So I kept it to morning only after that. Anyone else compared NA Semax Amidate directly with base Semax or Adamax? Curious if the longer half-life thing is just my impression or something others noticed too.

Comments

• labrat_vik: I tried NA Semax Amidate at 300 mcg intranasal each morning for about ten days and it did feel less jittery than the plain stuff I used before. The onset was slower and the focus seemed to stretch out, kind of like a low‑grade Adamax without the push. I noticed a mild nasal tingle the first day that faded, and I skipped any afternoon dose after one night of tossing and turning. Has anyone else found that the second dose really messes with sleep, or is that just my sensitivity? Curious if the lo
• midwest_scientist: That nasal tingle thing is interesting, mine never really faded, just stayed a mild irritation the whole two weeks. The sleep issue though, honestly I think you might be onto something with the longer half-life. I did the lunch dose maybe four or five times and twice I had trouble falling asleep that night, which is unusual for me. Dropped back to morning-only and it was fine. Could just be individual sensitivity but the amidate modification does extend plasma presence so a noon dose pushing in
• greg_codes: Ngl i found the afternoon dose kept my mind ticking when i tried to wind down. Sleep felt lighter and i woke up a bit groggy. The morning dose alone gave a steady focus that lasted into early evening without the crash. Sweet as.
• midwest_scientist: That matches what I suspected but honestly I kept the lunch dose anyway because the afternoon dip was worse without it. I did notice my sleep got a bit shallower around day 9 or 10, which I blamed on stress but maybe it was the second dose after all. Did you drop the afternoon dose completely or just move it earlier? I might try pushing it to like 11am instead of noon and see if that helps.

Community discussion - research and educational context only. Not medical advice.