Science-forward performance support—formulated to power strength, focus, and recovery at the cellular level.

Clinically Dosed, No Blends
Nitric Oxide Support
Daily Use Promotes Recovery & Circulation
NSF tested. GMP certified. USA made.
Daily Heart & Vein Health

Customer Reviews

Based on 92 reviews
80%
(74)
11%
(10)
1%
(1)
5%
(5)
2%
(2)
R
R.S.

Love this product! I take it daily!

D
DCS
Questionable efficacy

I started using L Arginine plus over six years ago. My results were noticeable. Then Klerpath came along. Long story short, I question the efficacy of the product. I no longer experience the same results I did in the beginning. + I like the grape flavored, I typically add a scoop to a 16 oz water bottle. It's not the same as it was in the beginning. The color, the flavor is not the same and results are not the same.

A
Anonymous
Great flavor and great product keeps my husband

Great flavor and great product keeps my husband going

L
Larry

Me and my wife use every morning

A
Anonymous
Taste great

Not sure how to best use it. Been downing it before my morning cardio, is that the ticket?

Why Circulation Matters

Your cardiovascular system powers everything—from endurance to recovery. L-Arginine Plus helps increase nitric oxide for better blood flow, oxygen delivery, and total-body performance.

The Dual-Path Advantage

L-Arginine and L-Citrulline work together to support nitric oxide production. One acts fast, the other sustains results—so you feel the benefits longer.

Nutrients That Get Absorbed

We use AstraGin® to enhance amino acid uptake, so more of each dose actually gets used. That means better support for your heart, muscles, and blood vessels—without filler or waste.

Quick Answers

What to expect, how it works, and why it’s different.

Learn More

What does L-Arginine Plus help with?

L-Arginine Plus supports circulation, cardiovascular health, stamina, and recovery by promoting nitric oxide production in the body.

When should I take it?

Take L-Arginine Plus once per day, ideally on an empty stomach or between meals, to support optimal absorption and nitric oxide production.

Will I feel it working?

Most users notice improved endurance, better recovery, and smoother energy throughout the day—but it’s designed to support long-term performance as much as immediate effects.

What makes L-Arginine Plus different from other circulation supplements?

It combines L-Arginine and L-Citrulline for fast and sustained nitric oxide support, and includes AstraGin® to enhance absorption—so your body uses more of each dose.

Can I take this with GROmuscle™?

Yes. They’re designed to work together. GROmuscle™ is a performance-driven pre-workout, while L-Arginine Plus supports daily circulation, vein health, and cardiovascular function.