Cellucor COR-Performance Glutamine supplement bottle
Cellucor

COR-Performance Glutamine Review

What We Researched
1 active ingredient analyzed · 5 brand certifications checked · Last updated: Aug 2026
100
Product Score Excellent
81
Brand Score Good

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
L-Glutamine 5 g
Bioavailability Excellent

Absorption Rating

  • L-Glutamine Good
Other Ingredients Excellent

Fillers & Additives

No inactive ingredient data available.

Efficacy Excellent

Dosage Analysis

  • L-Glutamine 5 g Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Glutamine 5 g
Brand Trust Report
Cellucor

Founded 2002 · Austin, Texas, United States · 349 products · cellucor.com/

Certifications

5 certifications
Nsf Certified For Sport Verified Source
Nsf Gmp Verified Source
NSF Certified for Sport Verified
NSF Contents Certified Verified
NSF Certified Verified

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source

Violation History

5 incidents
Lawsuit False advertising of XTEND workout powders as having '0 calories'.2023Source
Prop 65 Lead and Cadmium2018-01-23Source
Lawsuit Deceptive packaging and slack-fill of Cellucor C4 Pre-Workout powders.2018Source
Lawsuit False marketing claims regarding the performance-enhancing benefits of various Cellucor supplements.2016Source
Lawsuit Deceptive advertising of C4 Extreme as a 'dietary supplement' while containing the ingredient DMAA.2012Source
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Frequently Asked Questions
Is Cellucor COR-Performance Glutamine a good supplement?

Cellucor COR-Performance Glutamine 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 1 active ingredients with 72 servings per container. The manufacturer, Cellucor, holds a brand trust score of 81/100 with 5 verified certifications including Nsf Certified For Sport, Nsf Gmp, NSF Certified for Sport, NSF Contents Certified.

What are the ingredients in Cellucor COR-Performance Glutamine?

Cellucor COR-Performance Glutamine contains 1 active ingredients: L-Glutamine (5 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Cellucor COR-Performance Glutamine safe to take?

Cellucor COR-Performance Glutamine has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Cellucor a trustworthy supplement brand?

Cellucor receives a brand trust score of 81/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2002 and headquartered in Austin, Texas, United States, the company offers 349 products in their lineup. They hold 5 verified certifications including Nsf Certified For Sport, Nsf Gmp, NSF Certified for Sport, NSF Contents Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Cellucor has 5 historical regulatory incidents on record, which are factored into the trust score.

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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.