Note

This product contains 4 disputed ingredients: Arginine Nitrate (NO3-T), L-Glutathione Reduced (Setria), Pine Bark Extract (Pinus pinaster) (Bark) (95% Proanthocyanidins UV), AstraGin Astragalus (Astragalus membranaceus) (Root) Extract & Tienchi ginseng (Panax notoginseng) (Root) Extract. Evidence is mixed or doses are undisclosed — see the ingredient science section below for details.

Transparent Labs
Transparent Labs

Nitric Oxide

★★★★★
4.6 / 5·5 reviews at The FeedPerformance

Rating and review count from The Feed's customers. Pello community reviews are submitted separately on Pello.

$44.99for 30 servings· $1.50 per serving
Where to buy

As an Amazon Associate we earn from qualifying purchases. Pello may earn a commission on purchases made through some of these links at no extra cost to you. This never influences our scores or recommendations.Learn more

Used for: endurance athletes
Compare this product
Transparent Labs
Transparent LabsMid-range

19 products on Pello, mainly performance, recovery and mineral.

View all 19 Transparent Labs products →
Strengths
  • Insufficient data
Watch out for
  • →4 disputed ingredients — check label
5
Reviews at The Feed
0
Quality standards
6
Key ingredients
Pello Score™

Average

Meets the basics — check individual pillar scores

45
Science5/25
Transparency16/25
Value10/20
Athlete experience12/20
Quality2/10

Independent analysis No brand partnerships

AI Summary

Get an AI breakdown of this product
Based on this product's label, ingredients and rating data
Overall verdict
Key strengths
Weaknesses
Who it's best for

Sentiment breakdown

Loading community reviews…

Ingredient science

Cross-referenced with PubMed & Examine.com

✓No flagged ingredients detected
Vitamin C200mg
~ Likely

Supports immune function and acts as an antioxidant; moderate doses may reduce colds during heavy training, while very high doses may blunt training adaptations.

Arginine Nitrate (NO3-T)1250mg
Disputed

Arginine taken by mouth raises nitric oxide less reliably than citrulline or dietary nitrate; performance benefits in trained people are small or absent.

Betaine Nitrate (NO3-T)1000mg
~ Likely

Dietary nitrate (from beetroot or similar) can improve exercise efficiency and endurance, especially in recreational athletes; the evidence is weaker in highly trained athletes. Studies use roughly 400–800mg of nitrate.

L-Glutathione Reduced (Setria)250mg
Disputed

The body's main internal antioxidant; it's unclear how well it's absorbed when swallowed.

Pine Bark Extract (Pinus pinaster) (Bark) (95% Proanthocyanidins UV)200mg
Disputed

A pine bark antioxidant extract; small studies suggest benefits for circulation, but evidence for performance is limited.

AstraGin Astragalus (Astragalus membranaceus) (Root) Extract & Tienchi ginseng (Panax notoginseng) (Root) Extract50mg
Disputed

Ginseng-type herbs are studied for energy, stress and recovery; results are mixed and many studies are small.

Quality standards

What these mean →

0 of 5 standards Pello tracks · No third-party banned-substance testing listed

Tested for sport

  • NSF Certified for Sport
  • Informed Sport
  • Cologne List

Food & sourcing

  • USDA Organic
  • Non-GMO Project Verified

Diet claims

  • Vegan: not stated

    Brand or retailer label claim, not a certification.

  • Gluten-free: yes

    Brand or retailer label claim. In the US a gluten-free label means under 20 ppm gluten.

  • Dairy-free: yes

    From the allergen list, where one is available.

Certifications are as listed on the product's page at The Feed. NSF Certified for Sport is also checked against NSF's own database. Certifications can lapse, so check the certifier's search before you rely on one, especially if you're drug tested.

Transparency & Sources

85
High transparency
0 certifications · 5 reviews at The Feed
The Feed
5 reviewsmedium

You might also like

Pello community reviews

Submitted by athletes on Pello, separate from the retailer rating at the top of the page.

No reviews yet — be the first!

Loading reviews...

As an Amazon Associate we earn from qualifying purchases. Pello Nutrition participates in affiliate programs and may earn commissions on purchases made through links on this site — this never influences our editorial scores or recommendations.Affiliate disclosure →