Grade: C

MEDIUM RISK

Six Star

Item: Six Star
Rating: 50
Author: SupplementChecker

Six Star has a SupplementChecker.co trust score of 50/100, which is a Grade C and indicates MEDIUM risk. Six Star does not appear to conduct third-party testing on its supplements. Consumers should carefully evaluate Six Star reviews and consider the lack of independent verification when making purchasing decisions.

Six Star Trust Summary

Trust Score: 50/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 1

Six Star 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 1 adverse event report.

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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

Is Six Star Third-Party Tested?

No — Six Star 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 Six Star a Good Brand?

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

About Six Star

Six Star is a US-based specialty supplement brand operating independently. The founding date is unknown. Six Star offers a range of supplements, primarily marketed towards athletes and fitness enthusiasts.

Product Specialization

Six Star specializes in sports nutrition supplements. Their product line includes protein powders, pre-workout formulas, creatine supplements, and post-workout recovery aids.

Testing & Certifications Explained

Six Star does not appear to have any third-party testing certifications. This means that independent organizations are not verifying the quality, purity, or potency of Six Star's products. Consumers must rely solely on the brand's own claims, without independent confirmation. This lack of certification impacts the 'is Six Star safe?' question.

How Six Star Compares

Compared to competitors like Optimum Nutrition (trust score 75/100) and Klean Athlete (trust score 90/100), Six Star's trust score is considerably lower. Optimum Nutrition provides some third-party testing information, while Klean Athlete is known for its comprehensive certification program. Other brands like MuscleTech (trust score 60/100) have similar scores to Six Star, but may offer more transparency around manufacturing processes.

Buying Guidance

Given Six Star's trust score and lack of third-party testing, consumers should exercise caution. Purchase Six Star products from reputable retailers to minimize the risk of counterfeit products. Always carefully review product labels and consider consulting with a healthcare professional before using any new supplement.

Frequently Asked Questions

Has Six Star had any recalls?

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

Are Six Star supplements third-party tested?

No — Six Star 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 Six Star safe?

Six Star 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 Six Star a good brand?

Six Star 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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