KURK
KURK has a SupplementChecker.co trust score of 85/100, which is a Grade A, indicating a LOW risk level. KURK is Informed Sport certified, meaning every batch is tested for banned substances. This suggests KURK is a good brand for athletes concerned about banned substances.
KURK Trust Summary
- Trust Score
- 85/100 (Very Good)
- Grade
- A
- Risk Level
- LOW
- Third-Party Tested
- Yes (Informed Sport)
- FDA Recalls
- 0
- Adverse Events
- 0
KURK has a trust score of 85/100 (Very Good). The brand is third-party tested by Informed Sport, has no FDA recalls on record and no adverse event reports.
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Red Flags
- ⚠No GMP certification visible
Verified Strengths
- ✓Informed Sport certified — every batch tested
- ✓Claims third-party testing
- ✓Clean FDA record — no warnings, recalls, or significant adverse events
Certifications
Third-party testing means an independent laboratory has verified this product's contents, purity, and potency match what's on the label.
FDA Record
Clean record — no FDA warnings, recalls, or significant adverse events.
Is KURK Third-Party Tested?
Yes — KURK is Informed Sport certified. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims.
Is KURK a Good Brand?
KURK scores 85/100 (A) — this is an above-average score indicating a trustworthy brand. KURK has a clean FDA record with no warnings or recalls. The brand holds third-party certifications (Informed Sport certified), which is a strong quality indicator.
About KURK
KURK is a US-based sports nutrition brand operating independently. The founding date of KURK is unknown. They focus on providing supplements for athletes and fitness enthusiasts.
Product Specialization
KURK specializes in the sports nutrition category. While specific product types are not detailed, the brand likely offers products such as protein powders, pre-workouts, and performance enhancers.
Testing & Certifications Explained
KURK is Informed Sport certified. This means that every batch of KURK products is tested for banned substances by a third-party laboratory. This certification is particularly important for athletes who need to ensure that their supplements do not contain any prohibited substances. The Informed Sport certification provides a high level of assurance regarding product purity and safety.
How KURK Compares
Compared to other sports nutrition brands, KURK's trust score of 85 is relatively high. For example, Optimum Nutrition, a well-known brand, often scores in the 70s, while some smaller brands may lack any certifications. The presence of Informed Sport certification sets KURK apart from brands that only claim third-party testing without independent verification. This makes KURK a more trustworthy option than brands lacking such certifications.
Buying Guidance
Given KURK's high trust score and Informed Sport certification, it is a reasonable choice for consumers seeking third-party tested supplements. Consumers can purchase KURK products from various online retailers. Always verify the Informed Sport certification on the official Informed Sport website before purchasing.
Frequently Asked Questions
Has KURK had any recalls?
Are KURK supplements third-party tested?
Is KURK safe?
Is KURK a good brand?
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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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- Trust Score
- 85/100
- Grade
- A
- Risk Level
- LOW
- Third-Party Tested
- Yes
- FDA Recalls
- 0
- Adverse Reports
- 0