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Cellucor COR-Performance Glutamine supplement bottle
Cellucor

COR-Performance Glutamine Review

What We Researched
1 active ingredient analyzed · 5 brand certifications checked · Page generated: Sep 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 Source available Primary evidence
Nsf Gmp Source available Primary evidence
NSF Certified for Sport Supporting evidence unavailable
NSF Contents Certified Supporting evidence unavailable
NSF Certified Supporting evidence unavailable

Transparency

3 claims
Third Party Testing Claim — Verified Evidence available Evidence
Testing Lab Disclosure — Verified Evidence available Evidence

Violation History

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

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?

GoodSupp reviewed the inactive-ingredient data available for Cellucor COR-Performance Glutamine. 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 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. 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.