Grade: C

MEDIUM RISK

Reaction Nutrition

Item: Reaction Nutrition
Rating: 50
Author: SupplementChecker

Reaction Nutrition has a Trust Score of 50/100, which is a Grade C and indicates MEDIUM risk. Reaction Nutrition does not appear to conduct third-party testing on its supplements. The brand has a clean FDA record, with no warning letters or recalls.

Reaction Nutrition Trust Summary

Trust Score: 50/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 0

Reaction Nutrition has a trust score of 50/100 (Fair). The brand is not third-party tested by NSF, USP, or Informed Sport, has no FDA recalls on record and no adverse event reports.

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Red Flags

⚠No third-party testing certifications found
⚠No GMP certification visible

Verified Strengths

✓Clean FDA record — no warnings, recalls, or significant adverse events

Certifications

No certifications on record. This brand has not demonstrated GMP compliance or third-party testing verification.

FDA Record

FDA Warning Letters

Recalls

Adverse Reports

Clean record — no FDA warnings, recalls, or significant adverse events.

Is Reaction Nutrition Third-Party Tested?

No — Reaction Nutrition is not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. No GMP certification was found on record either. We recommend looking for brands with verified third-party testing for the highest confidence in product quality. See our guide to third-party tested supplements.

Is Reaction Nutrition a Good Brand?

Reaction Nutrition scores 50/100 (C) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Reaction Nutrition has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Reaction Nutrition

Reaction Nutrition is an independent supplement brand operating in the US. The company's founding date is unknown. They primarily focus on sports nutrition products.

Product Specialization

Reaction Nutrition specializes in protein supplements. They offer a range of protein powders and related products.

Testing & Certifications Explained

Reaction Nutrition does not have any visible third-party testing certifications. This means that there is no independent verification of their products' ingredients or purity. Consumers should be aware that the absence of certifications makes it more difficult to confirm the quality and safety of Reaction Nutrition's supplements. The question of "is Reaction Nutrition third-party tested?" is answered with a no.

How Reaction Nutrition Compares

Many brands in the protein supplement category, such as Optimum Nutrition (Trust Score 75) and Transparent Labs (Trust Score 90), undergo rigorous third-party testing and disclose ingredient sourcing. Other brands like Myprotein (Trust Score 60) have a higher trust score and more visible certifications than Reaction Nutrition. These brands often provide consumers with greater assurance of product quality and safety.

Buying Guidance

Given Reaction Nutrition's Trust Score and lack of third-party testing, consumers should exercise caution when considering their products. Purchase from reputable retailers and carefully examine product labels. Look for any available information on ingredient sourcing or testing, even if it's not a formal certification.

Frequently Asked Questions

Has Reaction Nutrition had any recalls?

No — as of 2026, Reaction Nutrition has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. Reaction Nutrition received a trust score of 50/100 from SupplementChecker.

Are Reaction Nutrition supplements third-party tested?

No — Reaction Nutrition supplements are not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. No independent testing or GMP certification was found on record.

Is Reaction Nutrition safe?

Reaction Nutrition received a trust score of 50/100 (grade: C, risk level: MEDIUM). This score is calculated from FDA records, third-party certifications, adverse event reports, and transparency practices. No FDA warnings or recalls are on record.

Is Reaction Nutrition a good brand?

Reaction Nutrition scores 50/100 (grade: C) — this is below average. We recommend looking for brands with third-party certifications like NSF or USP. They do not currently hold third-party testing certifications like NSF, USP, or Informed Sport. No FDA warnings or recalls found.

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How We Calculated This Score

Every brand starts with a baseline score of 70/100.

Points added for: Third-party certifications (NSF +15, USP +15, Informed Sport +10), publishing lab results (+10), clean regulatory record (+10), 10+ years in business (+10), organic certification (+5).

Points deducted for: FDA warning letters (-25), product recalls (-20), high adverse events (-15), no third-party testing (-15), proprietary blends (-10), no GMP (-10).

Score is capped at 0-100. Grade and risk level are derived from the final score.

All data sourced from FDA.gov, Health Canada (LNHPD / recalls-rappels), NSF.org, USP.org, and publicly available brand information. Last updated: 4/9/2026.

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