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Supplement

Mucuna Pruriens (Velvet Bean)

Contains 3-6% natural L-DOPA (dopamine precursor), reduces cortisol, increases testosterone and LH, provides antioxidant protection for dopaminergic neurons, and modulates prolactin.[1897,1918,1993, etc.]

Superscript reference numbers link to the Sources bibliography.

Moderate Evidence
MoodHormone HealthLibidoStress Resiliencealias: velvet beanalias: L-DOPA plantalias: kapikachhualias: cowhage

Composite Rating

2.4/5

Blends evidence depth, community direction, safety friction, and completeness.

Evidence Intensity

52/100

Moderate depth from human/RCT/meta counts

Community Direction

-9

Mixed / Neutral • confidence Minimal

Safety Friction

100/100

High signal from adverse/interaction markers

Data Completeness

100%

Studies 12 • mentions 10 • links 25

Not medical advice. This product is for educational and informational purposes only. It does not diagnose, treat, cure, or prevent any disease and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition.

FDA disclaimer: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Results may vary. Not intended for use by pregnant or nursing women, individuals under 18, or those with known medical conditions without physician consultation.

If you are experiencing a medical emergency, call 911 or your local emergency number immediately.

Implementation Blueprint

Goal alignment: Mood, Hormone Health, Libido, Stress Resilience.[574,722,946, etc.]

Dose guide: Human-study daily dose: 10 mg-200 mg/day (higher-confidence extraction from PubMed abstracts)..[574,722,946, etc.]

Category: botanical.[574,722,946, etc.]

Category

Botanical

Evidence Tier

EMERGING

Daily Guide

Human-study daily dose: 10 mg-200 mg/day (higher-confidence extraction from PubMed abstracts).

Dosing Guide

Human-study daily dose: 10 mg-200 mg/day (higher-confidence extraction from PubMed abstracts).[,, etc.]

At-A-Glance Evidence Architecture[1897,1918,1993, etc.]

Clinical Depth

Humans: 12 • RCTs: 3 • Meta: 0

Cohort / Real-World

Cohort signals: 0

Safety Markers

Adverse signals: 43 • Interactions: 16

Evidence Tracking

Freshness, trend, and study timeline for this item

Evidence Tracking

Status

New Evidence

Trend

↑ Growing evidence base

Depth

62 total studies · 4 recent

Timeline

20092026

Top Signal Metrics[1897,1918,1993, etc.]

Animal-only studies

113

Total indexed

62

In vitro / tissue

56

Safety adverse signals

43

Interaction signals

16

Human studies

12

Community Direction Mix[574,722,946, etc.]

Weighted direction score: -9 (Mixed / Neutral)

Evidence Quality Summary[1897,1918,1993, etc.]

Some human evidence or substantial animal evidence.

Animal-only studies

113

Total indexed

62

In vitro / tissue

56

Safety adverse signals

43

Interaction signals

16

Human studies

12

Randomized trials

3

Meta-analyses

0

Study Type Breakdown

Distribution of evidence by study design strength

Randomized TrialsLevel 1b3
Human Studies (other)Level 3-49
All IndexedAll levels62
52

Evidence Strength: Moderate

Composite of study volume, RCTs, and meta-analyses

Top Human Studies[1897,1918,1993, etc.]

PMID 28679598 • 2017 Aug 1

Mucuna pruriens in Parkinson disease: A double-blind, randomized, controlled, crossover study.

Neurology

Open PubMed

PMID 41269916 • 2026 Feb

Mucuna pruriens in untreated Parkinson's disease in sub-Saharan Africa: A 12-month, multicenter, randomized, controlled trial.

Journal of Parkinson's disease

Open PubMed

PMID 29352722 • 2018 Apr

Daily intake of Mucuna pruriens in advanced Parkinson's disease: A 16-week, noninferiority, randomized, crossover, pilot study.

Parkinsonism & related disorders

Community Report Frequency[574,722,946, etc.]

Benefit reports: 4

Adverse reports: 4

No-effect reports: 1

Mixed reports: 1

Unclear reports: 0

Signal confidence: 0.00

Top Reported Effects[574,722,946, etc.]

Benefits

  • Skin hydration and anti-wrinkle: 1
  • Joint lubrication and comfort: 1
  • Eye moisture: 1
  • Wound healing: 1
  • Supports connective tissue: 1

Adverse

  • Active cancer without physician guidance: 1

No Effect

  • no noticeable effect: 1

Natural L-DOPA source — powerful but respect it like a medication. Excellent for short cycles or fertility support. Not for indefinite daily use. | Step2: Insufficient empirical signal for a directional adjustment.

Reddit evidence: 0 mentions (confidence 0.00).

Community Evidence Examples[574,722,946, etc.]

aggregate • unclear

Aggregate community signal: 10 directional mentions (benefit 4, adverse 4, no-effect 1, mixed 1).

Open mention

Retail Signal Examples

amazon

Amazon search for Mucuna Pruriens (Velvet Bean)

Rating: n/a | Reviews: n/a

Open product

Primary Source Links

Evidence Sources

  • https://pubmed.ncbi.nlm.nih.gov/?term=(%22mucuna%20pruriens%22)%20AND%20(supplement*%5BTitle%2FAbstract%5D%20OR%20supplementation%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20dietary%20supplements%5BMeSH%20Terms%5D)
  • https://pubmed.ncbi.nlm.nih.gov/?term=(%22mucuna%20pruriens%22)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(supplement*%5BTitle%2FAbstract%5D%20OR%20supplementation%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20dietary%20supplements%5BMeSH%20Terms%5D)
  • https://pubmed.ncbi.nlm.nih.gov/?term=(%22mucuna%20pruriens%22)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(supplement*%5BTitle%2FAbstract%5D%20OR%20supplementation%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20dietary%20supplements%5BMeSH%20Terms%5D)%20AND%20randomized%20controlled%20trial%5BPublication%20Type%5D

Scientific Evidence Notes[1897,1918,1993, etc.]

1. Mucuna pruriens and male infertility/stress: randomized trial

RCT • 2010 • Adults

75 infertile men under psychological stress.

Outcome: 5 g/day Mucuna seed powder for 3 months significantly reduced cortisol (−28%), improved sperm quality, and increased testosterone (+38%) and dopamine (+69%).[1897,1918,1993, etc.]

Open source
2. Mucuna pruriens and semen quality in infertile men

RCT • 2009 • Adults

120 infertile vs 60 fertile men.

Outcome: Mucuna 5 g/day significantly improved sperm count (+56%), motility (+46%), and seminal antioxidant status in infertile men.[1897,1918,, etc.]

1897
1918,
1993

Safety and Pitfalls

  • Contains pharmaceutical-grade L-DOPA — treat seriously. Avoid combining with other dopaminergic substances. May worsen psychosis. Not for casual use.[574,722,946, etc.]
  • Potential side effect: nausea[574,722,946, etc.]
  • Potential side effect: insomnia[574,722,946, etc.]
  • Potential side effect: agitation[574,722,946, etc.]
  • Potential side effect: headache[574,722,946, etc.]
  • Potential side effect: dyskinesia (at high doses)[574,722,946, etc.]
  • Use caution with condition: psychosis / schizophrenia[574,722,946, etc.]
  • Use caution with condition: Parkinson's (without medical supervision)[574,722,946, etc.]
  • Interaction check: MAOIs (hypertensive crisis)[574,722,946, etc.]
  • Interaction check: levodopa/carbidopa (additive L-DOPA)[574,722,946, etc.]
  • Interaction check: dopamine agonists[574,722,946, etc.]
  • Interaction check: SSRIs[574,722,946, etc.]
  • Legacy caution group: Active cancer without physician guidance[574,722,946, etc.]
Benefit
4 (40%)
Adverse4 (40%)
No Effect1 (10%)
Mixed1 (10%)
Open PubMed

PMID 35939305 • 2022 Oct 1

Levodopa Content of Mucuna pruriens Supplements in the NIH Dietary Supplement Label Database.

JAMA neurology

Open PubMed

PMID 38462520 • 2024 Oct 15

Japanese Mucuna pruriens (Hasshou Beans) Showed Fast-acting and Long-lasting Effects in Parkinson's Disease.

Internal medicine (Tokyo, Japan)

Open PubMed

PMID 41575577 • 2026 Jan 23

Analysis of amino acids in Mucuna pruriens supplements using hydrophilic interaction liquid chromatography-tandem mass spectrometry.

Amino acids

Open PubMed

PMID 32179240 • 2020 Apr

Could Mucuna pruriens be the answer to Parkinson's disease management in sub-Saharan Africa and other low-income countries worldwide?

Parkinsonism & related disorders

Open PubMed

PMID 31796973 • 2019 Dec

Dietary Supplement Use is High among Individuals with Parkinson Disease.

Southern medical journal

Open PubMed

PMID 29427634 • 2018 May 10

Mucuna pruriens (L.) DC chemo sensitize human breast cancer cells via downregulation of prolactin-mediated JAK2/STAT5A signaling.

Journal of ethnopharmacology

Open PubMed

PMID 26366963 • 2015 Sep-Oct

Mucuna pruriens in Parkinson Disease: A Kinetic-Dynamic Comparison With Levodopa Standard Formulations.

Clinical neuropharmacology

Open PubMed

PMID 41220013 • 2025 Nov 1

Dopamine Dysregulation Syndrome in Parkinson's Disease.

The Senior care pharmacist

Open PubMed

PMID 19207619 • 2010 Feb

Effect of Mucuna pruriens on oxidative stress mediated damage in aged rat sperm.

International journal of andrology

Open PubMed

Amazon signal: 0 products scanned (confidence 0.00).

GNC signal: 0 products scanned (confidence 0.00) [ERROR].

terminated

Search fetch failed: Failed to fetch after retries: https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=12&q=%22mucuna%20pruriens%22%20(supplement%20OR%20dosage%20OR%20stack%20OR%20side%20effects%20OR%20review)%20(subreddit%3ASupplements%20OR%20subreddit%3ANootropics%20OR%20subreddit%3ABiohackers%20OR%20subreddit%3Alongevity%20OR%20subreddit%3ANutrition%20OR%20subreddit%3AHubermanLab%20OR%20subreddit%3ASleep%20OR%20subreddit%3AFitness%20OR%20subreddit%3Aketoscience%20OR%20subreddit%3AStackAdvice)

Fallback search failed: Failed to fetch after retries: https://old.reddit.com/search.json?raw_json=1&sort=comments&t=all&limit=16&q=%22mucuna%20pruriens%22%20(supplement%20OR%20capsule%20OR%20powder%20OR%20experience%20OR%20results%20OR%20side%20effects)

Broad search failed: Failed to fetch after retries: https://old.reddit.com/search.json?raw_json=1&sort=new&t=all&limit=16&q=mucuna%20pruriens

Use adverse/interactions PubMed signal counts for screening; perform clinician review before high-dose or multi-drug stack use.

Human-study daily dose signal: 10 mg-200 mg/day (confidence HIGH).

Extracted from 5 dosing mentions across 2 PubMed studies (mg/day).

Imported legacy community score: 7.0/10 (heuristic mapping confidence 1.00).

Legacy community note: Popular for skin and joint health. Users report more hydrated skin and reduced joint stiffness. Often stacked with collagen for synergistic beauty benefits. Topical HA also widely used.

https://pubmed.ncbi.nlm.nih.gov/?term=(%22mucuna%20pruriens%22)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(supplement*%5BTitle%2FAbstract%5D%20OR%20supplementation%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20dietary%20supplements%5BMeSH%20Terms%5D)%20AND%20meta-analysis%5BPublication%20Type%5D
  • https://pubmed.ncbi.nlm.nih.gov/?term=(%22mucuna%20pruriens%22)%20AND%20humans%5BMeSH%20Terms%5D%20AND%20(supplement*%5BTitle%2FAbstract%5D%20OR%20supplementation%5BTitle%2FAbstract%5D%20OR%20intake%5BTitle%2FAbstract%5D%20OR%20dietary%20supplements%5BMeSH%20Terms%5D)%20AND%202018%3A3000%5Bpdat%5D
  • https://pubmed.ncbi.nlm.nih.gov/28679598/
  • https://pubmed.ncbi.nlm.nih.gov/41269916/
  • https://pubmed.ncbi.nlm.nih.gov/29352722/
  • https://pubmed.ncbi.nlm.nih.gov/35939305/
  • https://pubmed.ncbi.nlm.nih.gov/38462520/
  • https://pubmed.ncbi.nlm.nih.gov/41575577/
  • https://pubmed.ncbi.nlm.nih.gov/32179240/
  • https://pubmed.ncbi.nlm.nih.gov/31796973/
  • https://pubmed.ncbi.nlm.nih.gov/29427634/
  • https://pubmed.ncbi.nlm.nih.gov/26366963/
  • https://pubmed.ncbi.nlm.nih.gov/41220013/
  • https://pubmed.ncbi.nlm.nih.gov/19207619/
  • https://pubmed.ncbi.nlm.nih.gov/20700708/
  • https://pubmed.ncbi.nlm.nih.gov/19468892/
  • https://pubmed.ncbi.nlm.nih.gov/22946065/
  • Community Sources

    • https://old.reddit.com/search.json?raw_json=1&sort=relevance&t=year&limit=12&q=%22mucuna%20pruriens%22%20(supplement%20OR%20dosage%20OR%20stack%20OR%20side%20effects%20OR%20review)%20(subreddit%3ASupplements%20OR%20subreddit%3ANootropics%20OR%20subreddit%3ABiohackers%20OR%20subreddit%3Alongevity%20OR%20subreddit%3ANutrition%20OR%20subreddit%3AHubermanLab%20OR%20subreddit%3ASleep%20OR%20subreddit%3AFitness%20OR%20subreddit%3Aketoscience%20OR%20subreddit%3AStackAdvice)
    • https://old.reddit.com/search.json?raw_json=1&sort=comments&t=all&limit=16&q=%22mucuna%20pruriens%22%20(supplement%20OR%20capsule%20OR%20powder%20OR%20experience%20OR%20results%20OR%20side%20effects)
    • https://old.reddit.com/search.json?raw_json=1&sort=new&t=all&limit=16&q=mucuna%20pruriens
    • https://www.reddit.com/search/?q=Mucuna%20Pruriens%20(Velvet%20Bean)
    1993
    Open source
    3. L-DOPA from Mucuna pruriens: dopaminergic effects review

    MECHANISTIC • 2012 • Adults

    Preclinical and clinical review.

    Outcome: Mucuna-derived L-DOPA crosses BBB, upregulates dopamine synthesis, shows comparable efficacy to synthetic L-DOPA for Parkinson's symptoms in small clinical studies.[1897,1918,1993, etc.]

    Open source
    4. PubMed evidence summary: Mucuna Pruriens

    PUBMED • Humans + preclinical triage

    Counts aggregated from automated literature sweep and tiering rules.

    Outcome: Tier MEDIUM; humans 12, RCTs 3, meta-analyses 0.[1897,1918,1993, etc.]

    Open source
    5. Mucuna pruriens in Parkinson disease: A double-blind, randomized, controlled, crossover study.

    PUBMED • 2017 • Human evidence curation set

    PMID 28679598 from Neurology.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    6. Mucuna pruriens in untreated Parkinson's disease in sub-Saharan Africa: A 12-month, multicenter, randomized, controlled trial.

    PUBMED • 2026 • Human evidence curation set

    PMID 41269916 from Journal of Parkinson's disease.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    7. Daily intake of Mucuna pruriens in advanced Parkinson's disease: A 16-week, noninferiority, randomized, crossover, pilot study.

    PUBMED • 2018 • Human evidence curation set

    PMID 29352722 from Parkinsonism & related disorders.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    8. Levodopa Content of Mucuna pruriens Supplements in the NIH Dietary Supplement Label Database.

    PUBMED • 2022 • Human evidence curation set

    PMID 35939305 from JAMA neurology.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    9. Japanese Mucuna pruriens (Hasshou Beans) Showed Fast-acting and Long-lasting Effects in Parkinson's Disease.

    PUBMED • 2024 • Human evidence curation set

    PMID 38462520 from Internal medicine (Tokyo, Japan).

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    10. Analysis of amino acids in Mucuna pruriens supplements using hydrophilic interaction liquid chromatography-tandem mass spectrometry.

    PUBMED • 2026 • Human evidence curation set

    PMID 41575577 from Amino acids.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    11. Could Mucuna pruriens be the answer to Parkinson's disease management in sub-Saharan Africa and other low-income countries worldwide?

    PUBMED • 2020 • Human evidence curation set

    PMID 32179240 from Parkinsonism & related disorders.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    12. Dietary Supplement Use is High among Individuals with Parkinson Disease.

    PUBMED • 2019 • Human evidence curation set

    PMID 31796973 from Southern medical journal.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    13. Mucuna pruriens (L.) DC chemo sensitize human breast cancer cells via downregulation of prolactin-mediated JAK2/STAT5A signaling.

    PUBMED • 2018 • Human evidence curation set

    PMID 29427634 from Journal of ethnopharmacology.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    14. Mucuna pruriens in Parkinson Disease: A Kinetic-Dynamic Comparison With Levodopa Standard Formulations.

    PUBMED • 2015 • Human evidence curation set

    PMID 26366963 from Clinical neuropharmacology.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    15. Dopamine Dysregulation Syndrome in Parkinson's Disease.

    PUBMED • 2025 • Human evidence curation set

    PMID 41220013 from The Senior care pharmacist.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source
    16. Effect of Mucuna pruriens on oxidative stress mediated damage in aged rat sperm.

    PUBMED • 2010 • Human evidence curation set

    PMID 19207619 from International journal of andrology.

    Outcome: See linked PubMed abstract for methods and outcomes.[1897,1918,1993, etc.]

    Open source