NSI-189
People mainly take NSI-189 for mood, focus, memory. Based on 61 first-hand reports. Ranked #123 of 1,974 overall.
49
User score
Mixed21% positive7% mixed8% negative64% unclear
Of reports that state an outcome, 58% are positive.
Clinical research
Research pending
What NSI-189 does, according to users
Of the people who reported each effect, the share who said it got better.
1 more with fewer than 3 reports
betterno changeworse
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
Research data for NSI-189 is being compiled.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
low sublingual doseas reported
1 monthas reported
20mgas reported
10 mg3 weeks
Reported side effects
How often each side effect came up across all reports.
paresthesia ×2attention deficits ×1mania ×1odd pains ×1emotional instability ×1panic attacks ×1
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“NSI literally increase the hippocampus size by 20% confirmed by studies.”
“NSI-189 was funded by DARPA to identify a molecule that would stimulate neurogenesis the most.”
“NSI 189 is something not talked about. That's an actual example of a rarely spoke about nootropic.”
“Expect NSI-189 before GLYX-13, but we also have a couple new products coming within the next few weeks too.”
“NSI-189”
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User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate