People mainly take Phenylethylamine for mood, anxiety, energy. Based on 5 first-hand reports and 6 meta-analyses & systematic reviews in the medical literature. Ranked #1279 of 1,974 overall.
Of reports that state an outcome, 50% are positive.
Of the people who reported each effect, the share who said it got better.
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: In total, 23 out of 32 articles reported real positive samples. The most frequently detected substance in hair was mephedrone, followed by butylone, methylone, MDPV, and α-pyrrolidinophenone-type substances.
PubMed 34684725 ↗Conclusion: This study provides evidence for several peripheral biomarkers as being associated with ADHD both in diagnosis and in treatment efficacy. Further studies are warranted to replicate these findings, to assess their specificity for ADHD, and to quantify the degree to which they are sufficiently precise to be useful in clinical settings.
PubMed 23021477 ↗Conclusion: The literature is incomplete and in some cases contradictory. In selected cases, bupropion appears to be associated with the induction of psychotic symptoms in addition to the precipitation or worsening of an existing psychotic syndrome. Further research including controlled studies is required to clarify the risk of bupropion precipitating a psychotic illness in vulnerable populations.
PubMed 21872337 ↗Conclusion: Levels of food-derived monoamine oxidase inhibitors and anti-bacterial compounds, the potential modulators of ADAS-bacteria growth and biogenic amine production, were altered in C&A versus NNI. ADAS is attributable to potentially modifiable risk factors of AD associated diseases.
PubMed 31561379 ↗As stated by users — not a recommendation. Follow the label or your doctor.
How often each side effect came up across all reports.
Verbatim quotes, shortened only — each links to the original discussion.
“I have been a lot more confident in general after taking Phenibut or phenylethylamine”
“Have you ever tried combining NALT or L-Tyrosine with Phenylethylamine?”
“It literally nuked my anxiety within 15 minutes, that's pretty amazing!”
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