PlainPill

Citrulline vs Phenylpiracetam for performance

Short answer: For performance, users rate them about the same: 100% report improvement with Citrulline (31 reports) and 100% with Phenylpiracetam (47 reports).

Citrulline has 51 meta-analyses and 258 randomized trials on PubMed; Phenylpiracetam has 0 and 0.

Based on 157 reports about Citrulline and 959 about Phenylpiracetam. Not medical advice.

Citrulline
Supplement
Phenylpiracetam
Supplement
Users say it helped84%helped58 reports · medium confidence63%helped499 reports · high confidence
Verdict
Mostly positive
Mostly positive
ResearchAResearch: StrongDResearch: None
Meta-analyses / RCTs51 / 2580 / 0
Mainly used for
Focus
% reporting improvement
—93% (346)
Energy
% reporting improvement
75% (4)94% (199)
Mood
% reporting improvement
—87% (100)
Performance
% reporting improvement
100% (31)100% (47)
Anxiety
% reporting improvement
—71% (41)
Common side effectserectile dysfunction, tooth erosion, tooth enamel, gerdtolerance, insomnia, headache, jitteriness
Typical dose reported1 g100 mg / 100mg 5 days a week with 2 days off or 200mg once a week
Citrulline
Latest review conclusion

Supplementation of some but not all micronutrients may benefit cardiometabolic health. This study highlights the importance of micronutrient diversity and the balance of benefits and risks to promote and maintain cardiovascular health in diverse populations. (Antioxidant Supplementation in the Prevention and Treatment of Cardiovascular Diseases; CRD42022315165).

J Am Coll Cardiol, 2022 ↗
What a user said
“try all the standard vasodilators - citrulline and agmatine helped me a lot.”
Full Citrulline profile →
Phenylpiracetam
What a user said
“I took 100 mgs of phenylpiracetam. I was laughing with friends, I felt GOOD.”
Full Phenylpiracetam profile →

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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate