Home/ Supplements/ L Arginine/ Vein Erect with L-Arginine & Maca

Vein Erect with L-Arginine & Maca

product on market Capsule Mason Natural Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 25% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

L-arginine and maca are commonly used to support blood flow and libido, though clinical evidence for these effects is generally limited. Calcium provides basic nutritional support for cellular function. Overall, the evidence coverage for this specific ingredient combination is very low.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Vein Erect with L-Arginine & Maca
Open Full PDF View on NIH DSLD →
Details

Label Data

4 Capsule(s)
Serving Size
20
Servings
Botanical with Nutrients
Product Type
25%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calcium
50 mg (4% DV)
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)
100 mg
Market median: 500.0mg (357 products) 1 studies — no high-quality reviews
Market median: 500.0mg (357 products) 1 studies — no high-quality reviews

Other Ingredients

Gelatin Vegetable Magnesium Stearate Silicon Dioxide Cellulose
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Adults - Take four capsules daily, preferably with food, as a dietary supplement.

Warnings & Precautions

Contraindications: Extracts from maca might act like estrogen. If you have any medical conditions that may get worse from exposure to estrogen, do not use these extracts.

If you are taking any medications or have any medical condition, consult your physician before use.

Discontinue use and consult your physician if any adverse reactions occur.

Keep out of reach of children.

Tamper-Evident Seal: Do not use product if seal appears tampered.

Formulation Notes

May support stamina & endurance

Guaranteed no added: Sugar, yeast, soy, wheat, dairy, gluten, fish, tree nuts, peanuts, egg, fragrance, artificial colors or flavors, preservatives, crustacean shellfish. Sodium free.

Caution: This product is intended for men only and not for women.

Gluten free Soy free

Additional Information

Mason guarantee Laboratory Tested cGMP Certified Good Manufacturing Practice

Certified N Mason natural Est. 1967

Store in a dry place under controlled room temperature: 20 degrees - 25 degrees C (68 degrees - 77 degrees F).

Please recycle

Metadata

Product Details

UPC / SKU3 11845 13498 1
DSLD Entry Date2021-04-22
Product TypeBotanical with Nutrients
FormCapsule
BrandMason Natural
DSLD ID244894
Data Updated2026-04-11
Research

Research Evidence

45
Research Sources
52
Avg Quality
12
Rct
11
Systematic Review
11
Meta Analysis
11
Clinical Trial
A Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute stroke
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
A Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
B Nutritional interventions for treating foot ulcers in people with diabetes
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
B Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute stroke
Systematic Review The Cochrane database of systematic reviews 2002 PubMed
B Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Systematic Review The Cochrane database of systematic reviews 2007 PubMed
B The Effect of Amino Acids on Wound Healing: A Systematic Review and Meta-Analysis on Arginine and Glutamine
Meta Analysis Nutrients 2021 PubMed DOI
B Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute ischaemic stroke
Systematic Review The Cochrane database of systematic reviews 2000 PubMed
B Dietary Supplements for Erectile Dysfunction: Analysis of Marketed Products, Systematic Review, Meta-Analysis and Rational Use
Meta Analysis Nutrients 2023 PubMed DOI
B Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Systematic Review The Cochrane database of systematic reviews 2004 PubMed
B An Analysis of Popular Online Erectile Dysfunction Supplements
Systematic Review The journal of sexual medicine 2019 PubMed DOI
View all evidence for L Arginine →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.