Get the App
Optimum Nutrition Opti-Pump N.O supplement bottle
Optimum Nutrition

Opti-Pump N.O Review

What We Researched
3 active ingredients analyzed · 3 inactive ingredients decoded · 10 brand certifications checked · Page generated: Sep 2026
100
Product Score Excellent
100
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Arginine Blend (as A-AKG, L-Arginine) 3 g †
Sustained-Release Blend 1.5 g †
Opti-Pump N.O. Blend 1.25 g †
Bioavailability Excellent

Absorption Rating

  • Arginine Blend (as A-AKG, L-Arginine) Good
Other Ingredients Excellent

Fillers & Additives

  • Stearic Acid
  • Magnesium Stearate
  • Pharmaceutical Glaze
Efficacy Excellent

Dosage Analysis

  • Arginine Blend (as A-AKG, L-Arginine) 3 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Arginine Blend (as A-AKG, L-Arginine) 3 g †
Sustained-Release Blend 1.5 g †
Opti-Pump N.O. Blend 1.25 g †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Pharmaceutical Glaze Generally_safe

It is used to coat tablets or capsules for easier swallowing or controlled release.

Brand Trust Report
Optimum Nutrition

Founded 1986 · Downers Grove, IL, United States · 311 products · optimumnutrition.com

Certifications

10 certifications
Consumerlab Source available Primary evidence
Informed Sport Source available Primary evidence
Labdoor Source available Primary evidence
Nsf Certified For Sport Source available Primary evidence
Usda Organic Source available Primary evidence
Vegan Certified Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence
Non Gmo Project Source available Primary evidence
Nsf Gmp Source available Primary evidence
Informed Choice Supporting evidence unavailable

Transparency

5 claims
Third Party Testing Claim — Verified Evidence available Evidence
Testing Lab Disclosure — Claimed Evidence available Evidence
In House Testing — Verified Evidence available Evidence
Contains Proprietary Blend — True Brand claim; evidence unavailable

Violation History

5 incidents
Prop 65 Lead2025-07-21 Source available Primary source
Prop 65 Lead2024-11-22 Source available Primary source
Recall Various nutritional and beverage products2022-07-28 Source available Primary source
Prop 65 Lead2017-03-10 Source available Primary source
Lawsuit Deceptive claims about the plant-based enzyme 'Aminogen' and its effect on protein digestion and absorption.2013 Source available Primary source
Related Supplements
Tru Niagen Tru Niagen Pro 1000 mg
Tru Niagen Tru Niagen Pro 1000 mg
Product 100 Brand 100
Jamieson Extra Strength D3 2500 IU
Jamieson Extra Strength D3 2500 IU
Product 100 Brand 100
Gaia Herbs Hibiscus Flower Liquid Phyto-Caps
Gaia Herbs Hibiscus Flower Liquid Phyto-Caps
Product 100 Brand 100
Optimum Nutrition CoQ10 100 mg
Optimum Nutrition CoQ10 100 mg
Product 100 Brand 100
Optimum Nutrition Micronized Creatine
Optimum Nutrition Micronized Creatine
Product 100 Brand 100
Optimum Nutrition Glucosamine + CSA Super Strength
Optimum Nutrition Glucosamine + CSA Super Strength
Product 100 Brand 100
Frequently Asked Questions
Is Optimum Nutrition Opti-Pump N.O a good supplement?

Optimum Nutrition Opti-Pump N.O received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 3 active ingredients with 60 servings per container. All 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Optimum Nutrition, holds a brand trust score of 100/100.

What are the ingredients in Optimum Nutrition Opti-Pump N.O?

Optimum Nutrition Opti-Pump N.O contains 3 active ingredients: Arginine Blend (as A-AKG, L-Arginine) (3 g), Sustained-Release Blend (1.5 g), Opti-Pump N.O. Blend (1.25 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Optimum Nutrition Opti-Pump N.O safe to take?

GoodSupp reviewed the inactive-ingredient data available for Optimum Nutrition Opti-Pump N.O. All 3 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Optimum Nutrition a trustworthy supplement brand?

Optimum Nutrition receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1986 and headquartered in Downers Grove, IL, United States, the company offers 311 products in their lineup. Note: Optimum Nutrition has 5 historical regulatory incidents on record, which are factored into the trust score.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Download on App Store Browse All Supplements
Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.