L-Citrulline vs Phenylpiracetam for performance
Short answer: For performance, users rate them about the same: 98% report improvement with L-Citrulline (45 reports) and 100% with Phenylpiracetam (47 reports).
L-Citrulline has 14 meta-analyses and 101 randomized trials on PubMed; Phenylpiracetam has 0 and 0.
Based on 231 reports about L-Citrulline and 959 about Phenylpiracetam. Not medical advice.
| L-Citrulline Supplement | Phenylpiracetam Supplement | |
|---|---|---|
| Users say it helped | 77%helped99 reports · medium confidence | 63%helped499 reports · high confidence |
| Verdict | Mostly positive | Mostly positive |
| Research | AResearch: Strong | DResearch: None |
| Meta-analyses / RCTs | 14 / 101 | 0 / 0 |
| Mainly used for | ||
| Focus % reporting improvement | 67% (3) | 93% (346) |
| Energy % reporting improvement | 100% (11) | 94% (199) |
| Mood % reporting improvement | 100% (2) | 87% (100) |
| Performance % reporting improvement | 98% (45) | 100% (47) |
| Libido % reporting improvement | 98% (48) | — |
| Common side effects | cold sore, dizziness, headache, increased urination | tolerance, insomnia, headache, jitteriness |
| Typical dose reported | 8 g / 3x/week | 100 mg / 100mg 5 days a week with 2 days off or 200mg once a week |
Foods rich in polyphenols and nitrate provide trivial benefits for endurance exercise performance, although these effects may be food dependent. Highly trained endurance athletes do not appear to benefit from consuming nitrate-rich foods but may benefit from polyphenol consumption. Further research into food sources, dosage and supplementation duration to optimise the ergogenic response to polyphenol consumption is warranted. Further studies should evaluate whether differential sex-based responses to nitrate and polyphenol consumption are attributable to physiological differences or sample siz
J Int Soc Sports Nutr, 2021 ↗“Something I found that makes my meds work way better is Citrulline 2g + Arginine 2g twice daily.”
“I took 100 mgs of phenylpiracetam. I was laughing with friends, I felt GOOD.”
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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