Stalworth
Stalworth has a SupplementChecker trust score of 75/100, a grade of B+, indicating a LOW risk level. Stalworth claims to offer third-party tested supplements; however, the specific testing body is not identified. This is a positive signal, but consumers should independently verify testing before purchasing.
Stalworth Trust Summary
- Trust Score
- 75/100 (Good)
- Grade
- B+
- Risk Level
- LOW
- Third-Party Tested
- Yes (self-reported)
- FDA Recalls
- 0
- Adverse Events
- 0
Stalworth has a trust score of 75/100 (Good). The brand is claims third-party testing (self-reported), has no FDA recalls on record and no adverse event reports.
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Red Flags
- ⚠No GMP certification visible
Verified Strengths
- ✓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 Stalworth Third-Party Tested?
Yes — Stalworth is Third-party tested. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims.
Is Stalworth a Good Brand?
Stalworth scores 75/100 (B+) — this is an average score. There may be room for improvement in testing transparency or certifications. Stalworth has a clean FDA record with no warnings or recalls. The brand holds third-party certifications (Third-party tested), which is a strong quality indicator.
About Stalworth
Stalworth is a US-based supplement brand operating independently. The founding date of the company is unknown. They offer a range of supplements marketed to health-conscious consumers.
Product Specialization
Stalworth focuses on protein and vitamin supplements. They offer a variety of protein powders and multivitamins.
Testing & Certifications Explained
Stalworth claims its products are third-party tested, but does not specify which organization performs the testing. This means that while the company asserts its products are independently verified for purity and potency, there's no way for consumers to confirm this claim. Without a recognized certification, it's difficult to assess the rigor and reliability of the testing process. Consumers seeking third-party tested supplements should look for clearly identified and reputable certifications.
How Stalworth Compares
Compared to brands like Transparent Labs (trust score 92/100) which provides complete transparency with third-party testing and GMP certification, Stalworth lags behind in demonstrating trustworthiness. Another competitor, Klean Athlete (trust score 88/100), also surpasses Stalworth with its NSF Certified for Sport certification. These brands offer more verifiable assurances of product quality and safety.
Buying Guidance
Given Stalworth's B+ grade and claim of third-party testing, consumers should proceed with caution. If considering Stalworth products, look for batch-specific lab results on the product packaging or company website. Purchasing directly from Stalworth or authorized retailers is recommended.
Frequently Asked Questions
Has Stalworth had any recalls?
Are Stalworth supplements third-party tested?
Is Stalworth safe?
Is Stalworth 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
- 75/100
- Grade
- B+
- Risk Level
- LOW
- Third-Party Tested
- Yes
- FDA Recalls
- 0
- Adverse Reports
- 0