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Nutrex Research Caffeine 200, 200 mg supplement bottle
Nutrex Research

Caffeine 200, 200 mg Review

What We Researched
1 active ingredient analyzed · 4 inactive ingredients decoded · 1 brand certification checked · Page generated: Sep 2026
100
Product Score Excellent
69
Brand Score Fair

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
Caffeine Anhydrous 200 mg *
Bioavailability Excellent

Absorption Rating

  • Caffeine Anhydrous Good
Other Ingredients Excellent

Fillers & Additives

  • Vegetable Capsule
  • Microcrystalline Cellulose
  • Magnesium Stearate
  • Silicon Dioxide
Efficacy Excellent

Dosage Analysis

  • Caffeine Anhydrous 200 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Caffeine Anhydrous 200 mg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Capsule Safe

It is used as a vegetarian alternative to gelatin capsules.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Brand Trust Report
Nutrex Research

Founded 2002 · Oviedo, Florida, United States · 230 products · nutrex.com/

Certifications

1 certification
Consumerlab Source available Primary evidence

Transparency

3 claims
Third Party Testing Claim — Claimed Evidence available Evidence
In House Testing — Claimed Evidence available Evidence

Violation History

6 incidents
Prop 65 Lead, Cadmium2017-06-27 Source available Primary source
Prop 65 Lead2015-06-15 Source available Primary source
Fda Warning The product Adipodex was found to contain DMBA (1,3-Dimethylbutylamine), which the FDA considered a new dietary ingredient for which a New Dietary Ingredient notification was not submitted.2015-04-24 Source available Primary source
Fda Warning Products including Hemo Rage Black and Lipo-6 Black contained DMAA (1,3-dimethylamylamine), which the FDA deemed an adulterant.2012-04-24 Source available Primary source
Lawsuit A class-action lawsuit was filed against Nutrex Research for products containing the stimulant DMAA, which was alleged to be dangerous.2012 Source available Primary source
Lawsuit A potential class-action lawsuit claimed that Nutrex supplements advertised as 'all-natural' contained methylsynephrine, an ingredient alleged to be the prescription drug Oxilofrine.2010 Source available Primary source
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Frequently Asked Questions
Is Nutrex Research Caffeine 200, 200 mg a good supplement?

Nutrex Research Caffeine 200, 200 mg 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 60 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Nutrex Research, holds a brand trust score of 69/100.

What are the ingredients in Nutrex Research Caffeine 200, 200 mg?

Nutrex Research Caffeine 200, 200 mg contains 1 active ingredients: Caffeine Anhydrous (200 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nutrex Research Caffeine 200, 200 mg safe to take?

GoodSupp reviewed the inactive-ingredient data available for Nutrex Research Caffeine 200, 200 mg. All 4 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 Nutrex Research a trustworthy supplement brand?

Nutrex Research receives a brand trust score of 69/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2002 and headquartered in Oviedo, Florida, United States, the company offers 230 products in their lineup. Note: Nutrex Research has 6 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.