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DOSERANKEVIDENCE-BASED SUPPLEMENTSFull analysis

The short answer · Erectile function

Take l-citrulline for erectile function. This is the one to buy.

Nutricost, L-Citrulline, Unflavored , 1.3 lb (600 g)
1

Nutricost, L-Citrulline, Unflavored , 1.3 lb (600 g)

4.8· 1,330 ratings· $0.13/serving

DoseRank score84

L-Citrulline 3 g — below the studied 1500-5000 mg window

Of 1,966 products scored for Erectile function, Nutricost, L-Citrulline, Unflavored , 1.3 lb (600 g) ranks #1 with a DoseRank score of 84. L-Citrulline has moderate human evidence for this outcome.

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The form“Why L-Citrulline — not Panax Ginseng or Horny Goat Weed?”Evidence Moderate evidence

L-Citrulline has moderate human evidence for this outcome.

  • L-CitrullineThe pick

    Moderate evidence · 3 g

    Non-essential amino acid and the most efficient precursor to arginine and nitric oxide; raises plasma arginine more than arginine itself, supporting exercise blood flow.

  • Panax Ginseng

    Strong evidence

    Adaptogenic root used in traditional Chinese and Korean medicine; best known for supporting energy, cognitive performance, and immune modulation via ginsenoside saponins.

  • Horny Goat Weed

    Limited evidence

    Epimedium-derived botanical containing icariin, a mild PDE5 inhibitor; common in men's formulas for libido and circulation support.

Buy the #1 pick

Questions

Frequently asked

Nutricost, L-Citrulline, Unflavored , 1.3 lb (600 g) ranks #1 for Erectile function with a DoseRank score of 84. The score blends clinical strength, evidence, dose fit, trust signals and value across 1,966 products scored for this outcome.

L-Citrulline has moderate human evidence for this outcome.

L-Citrulline at 3 g sits below the studied 1500-5000 mg window. DoseRank scores this product's dose fit at 77 out of 100.

Nutricost, L-Citrulline, Unflavored , 1.3 lb (600 g) works out at $0.13 per serving. $0.13 per serving — low price tier for this outcome. Nothing else in this ranking costs less per serving.

No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.

Keep exploring

Other outcomes

  • Libido or sexual desireInterest in sexual activity.
  • Sexual functionOverall sexual performance and satisfaction.

Use rankings as research support

DoseRank rankings are informational and not medical advice. If you are pregnant, breastfeeding, using medications, or managing a health condition, ask a qualified clinician whether a supplement fits your situation. Stop use and report concerning adverse events to a clinician, the product maker, or the retailer.

Disclosure

Retailer links may be affiliate links. Rankings and placement are not paid placement.

Nutricost, L-Citrulline, Unflavored , 1.3 lb (600 g)

$0.13/serving · ★ 4.8 · In stock

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Cheaper alternative$0.13 per servingNutricost, Panax Ginseng, 240 Capsules (500 mg per Capsule)

Retailer links may be affiliate links. Rankings and placement are never paid.

The dose“Is the dose actually effective?”Dose fit 77

L-Citrulline at 3 g sits below the studied 1500-5000 mg window.

L-Citrulline

Studied window 1500-5000 mg · this pick 3 g

The ranking“Why should I trust this pick?”Trust 79

Solid trust signals from buyer ratings, with room to grow. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.

  • 1,966 products scored
  • Never paid placement
  • Evidence level: Moderate · 78
  • 267 brands
  • 9 ingredients
See the full analysis — every score, every productHow the ranking works
The price“Can I do better than $0.13 a serving?”Value 83

$0.13 per serving — low price tier for this outcome. Nothing else in this ranking costs less per serving.

Ready?

The #1 pick is $0.13 a serving.

Nutricost, L-Citrulline, Unflavored , 1.3 lb (600 g) — in stock at a tracked retailer.

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