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Nitric Oxide
FORMULA · Clinical capsules1/4
FIG. 01 — NITRIC OXIDE · STUDIODRAG TO ROTATE
Pre-workout readyIn stock3 ingredients

Nitric Oxide

Citrulline + arginine stack for circulation, pump, and endurance

Clinical-dose precision. No taste, no mixing, no fuss.

Starter-friendlyOur verdict · for new lifters testing a caffeine-free pre-workout

Right ingredients, wrong dose. Citrulline studies use 6-8g for endurance and 3g for pump. This ships 400mg, so you'd need a half-dozen capsules to hit study doses. Use this as part of a stack, not as your sole pre-workout.

Includes
L-Citrulline DL-Malate 400mg · L-Arginine HCl 350mg · L-Arginine Alpha-Ketoglutarate 50mg
Supply
30 servings · re-ship every 30 or 60 days
Tested by
Third-party tested · COA on request
Reviewed by
Licensed PharmD · clinical advisory team
Shipping
Free US shipping · Made in Colorado · 3 business days
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Testing and quality

  • GMPcGMPManufactured in a current Good Manufacturing Practice facility.
  • 3PT3rd-partyIdentity, potency, and contaminant testing by an independent lab.
SECTION 02 · INGREDIENT BREAKDOWN

Every molecule, graded.

GRADE SCALE
A · EVIDENCE: STRONG
B · EVIDENCE: MODERATE
01L-Citrulline DL-MalateClinical dose, COA per batch.400mgGrade A · see studies →
02L-Arginine HClClinical dose, COA per batch.350mgGrade A · see studies →
03L-Arginine Alpha-KetoglutarateClinical dose, COA per batch.50mgGrade A · see studies →
SECTION 03 · THE EVIDENCE

Why this formula.

We pick ingredients by effect size, not marketing. Each citation below links the strongest available human evidence — with the honest limitations noted.

REF · 1400 · PEER-REVIEWED

L-Citrulline DL-Malate at the clinical dose, and what the trials show.”

400mg — the dose used in the strongest available randomized evidence. See the ingredient page for full methodology and pooled effect sizes.

Effect: documented · graded A
REF · 1613 · PEER-REVIEWED

L-Arginine HCl at the clinical dose, and what the trials show.”

350mg — the dose used in the strongest available randomized evidence. See the ingredient page for full methodology and pooled effect sizes.

Effect: documented · graded A
REF · 1826 · PEER-REVIEWED

L-Arginine Alpha-Ketoglutarate at the clinical dose, and what the trials show.”

50mg — the dose used in the strongest available randomized evidence. See the ingredient page for full methodology and pooled effect sizes.

Effect: documented · graded A

Founding-cohort notes

What the first buyers are saying

5.0 · 2 notes

These are founding-cohort testimonials from real buyers who reviewed the formula ahead of public launch. We'll surface live buyer reviews here once the post-purchase review flow ships.

Apr 9, 2026

Pumps are back. L-citrulline dose is right. I skipped the jittery pre-workout scene and this does the job without the crash.

Founding cohort · verified buyer

Mar 25, 2026

Endurance runs noticeably easier. No caffeine, no artificial colors. Two caps 30 min pre-run is the sweet spot.

Founding cohort · verified buyer

Questions buyers ask

About 30 to 45 minutes before training. That gives L-citrulline time to convert and circulate.

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