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L-Arginine for Erectile Dysfunction: What the Trials Used
L-arginine for erectile dysfunction has real trials behind it, but they used 1,500 to 5,000 mg a day in men with mild to moderate ED. Stallion Power lists L-arginine seventh in an 82 mg blend, so one gummy holds 5 mg or less by our arithmetic.
Written by the Stallion Power label deskUpdated · 4 min read
The trials01
Does L-arginine work for erectile dysfunction?
L-arginine may help some men with mild to moderate erectile dysfunction, based on a 2019 meta-analysis of 10 randomized trials with 540 men (Rhim 2019, arginine and ED meta-analysis).
The doses in those trials were 1,500 to 5,000 mg a day, and side effects were more common than with placebo, though none were severe (Rhim 2019, arginine and ED meta-analysis). Mayo Clinic says it might help when the cause is physical (Mayo Clinic, L-arginine).
The body02
Why do researchers study L-arginine for ED?
Because the body uses L-arginine to make nitric oxide, a signal that relaxes blood vessels.
An erection depends on blood flow, so the idea is simple. ED itself can point to heart or blood sugar problems, which a supplement does not address. See a doctor first. The L-arginine ingredient page has the profile.
The label03
How much L-arginine is in a Stallion Power gummy?
The label does not say. It prints one total, 82 mg, for nine ingredients, and L-arginine sits seventh.
Caffeine is printed as 5 mg and comes fifth. Anything listed after it weighs 5 mg or less. This is our arithmetic from the label order, not a lab test.
| Source | Amount |
|---|---|
| ED trials | 1,500 to 5,000 mg |
| One gummy, ceiling | 5 mg or less |
Stallion Power: from $49 a bottle30 gummies · 2, 3 or 6 bottles · free shipping on 3 or 6 · 60-day guarantee
See packsContext04
Is a supplement the same as a prescription ED medicine?
No. Prescription ED medicines are approved drugs with set doses. A supplement is not approved before sale (FDA 101: Dietary Supplements).
FDA has found undeclared drugs in some male enhancement products. We have not tested this gummy, and no lab report is published. See our hidden drug guide.
Next steps05
What should you do before trying an L-arginine product?
Talk to your doctor or pharmacist first, especially if you take a nitrate, a blood-pressure medicine or an ED drug.
L-arginine can lower blood pressure, so these combinations matter (Mayo Clinic, L-arginine). Keep taking prescribed medicine as directed; a gummy does not replace it.
Read the Supplement Facts breakdown and the pricing page before you decide.
Want to try Stallion Power? Both packs ship free, and both come with the 60-day guarantee (all bottles returned, even empty ones).
Prices on the sales page, October 18, 2026 (Stallion Power sales page). Check your medicines with your doctor first.
FAQ06
L-arginine and ED questions
How much L-arginine did the ED trials use?
The trials in the 2019 meta-analysis used 1,500 to 5,000 mg a day in men with mild to moderate ED (Rhim 2019, arginine and ED meta-analysis). That is gram-level dosing, far above the 5 mg or less one gummy holds by our label arithmetic.
Is L-arginine the same as Viagra?
No. L-arginine is an amino acid sold as a supplement, while sildenafil is a prescription drug. They work differently, and the combination can lower blood pressure too far, so ask a clinician first (Mayo Clinic, L-arginine).
Can L-arginine fix ED caused by heart disease?
No supplement fixes the cause. ED can be an early sign of heart or vessel disease, so a doctor visit matters more than a product. Mayo Clinic advises seeing a clinician about ED (Mayo Clinic, L-arginine).
Does Stallion Power list how much L-arginine it has?
No. The label prints only the 82 mg blend total. L-arginine is listed seventh, after the 5 mg caffeine, so it weighs 5 mg or less. That is our arithmetic, not a lab result.
Who wrote this07
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Stallionpowermen, a USA stocking retailer for Stallion Power, not by the manufacturer or the distributor. We are paid a commission when you buy through our order links.
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