Fourfive
Fourfive has a SupplementChecker trust score of 85/100, which is a Grade A and indicates a LOW risk level. Fourfive claims to offer third-party tested supplements and is Informed Sport certified, with every batch tested. This is a strong indicator of product quality and safety.
Fourfive 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
Fourfive 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.
Where to Buy Fourfive
Purchase from trusted retailers. We may earn a commission at no extra cost to you.
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 Fourfive Third-Party Tested?
Yes — Fourfive is Informed Sport certified. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims.
Is Fourfive a Good Brand?
Fourfive scores 85/100 (A) — this is an above-average score indicating a trustworthy brand. Fourfive 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 Fourfive
Fourfive is an independent sports nutrition brand. The company's founding date is unknown. Fourfive focuses on providing supplements for athletes and active individuals.
Product Specialization
Fourfive specializes in the sports nutrition category. They likely offer a range of products such as protein powders, vitamins, and performance-enhancing supplements.
Testing & Certifications Explained
Fourfive's Informed Sport certification is a valuable asset for consumers. It means that every batch of their products is tested for substances banned by major sporting organizations. This significantly reduces the risk of athletes inadvertently consuming prohibited substances. While Fourfive claims third-party testing, the absence of publicly available lab results means consumers must rely on the Informed Sport certification for assurance of product purity and safety.
How Fourfive Compares
Many sports nutrition brands prioritize third-party testing. For example, Klean Athlete (trust score 92) is also Informed Sport certified and publishes lab results. Transparent Labs (trust score 90) is known for its rigorous testing and transparent ingredient sourcing. Fourfive's trust score of 85 places it competitively within the sports nutrition market, but increased transparency could further enhance consumer confidence.
Buying Guidance
Given Fourfive's Informed Sport certification and high trust score, consumers can generally feel confident purchasing their products. Look for the Informed Sport logo on the product packaging to verify certification. Always purchase from reputable retailers to ensure product authenticity.
Frequently Asked Questions
Has Fourfive had any recalls?
Are Fourfive supplements third-party tested?
Is Fourfive safe?
Is Fourfive a good brand?
Get FDA Recall Alerts
We'll notify you when FDA recalls affect supplement brands you care about.
Compare Similar Brands
Brands in similar categories with comparable trust profiles. Compare certifications, scores, and safety records.
Nuun
Grade A+ • Higher score
Trace Minerals Research
Grade A+ • Higher score
MusclePharm
Grade A+ • Higher score
Bulk Supplements (BulkSupplements.com)
Grade A+ • Higher score
PhD Nutrition
Grade A+ • Higher score
Want more comparisons? Browse our supplement categories or check our buying guides.
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.
Promote Your Trust Score
Embed this badge on your site — it displays Fourfive's verified trust score and links back to this profile page. Helps show buyers you're transparent about third-party testing.
<iframe src="https://supplementchecker.co/embed/fourfive/" width="220" height="110" frameborder="0" loading="lazy" title="Fourfive trust score by SupplementChecker"></iframe>
<iframe src="https://supplementchecker.co/embed/fourfive/" width="320" height="160" frameborder="0" loading="lazy" title="Fourfive trust score by SupplementChecker"></iframe>
<iframe src="https://supplementchecker.co/embed/fourfive/" width="420" height="210" frameborder="0" loading="lazy" title="Fourfive trust score by SupplementChecker"></iframe>
Paste the snippet anywhere on your site. The badge updates automatically when Fourfive's trust score changes.
Own this brand? Contact us to update your information.
Want to find supplements you can trust?
Third-party testing is the single best indicator of supplement quality. We analyzed Fourfive and 500+ other brands to find the ones that actually prove what's on the label.
See the best third-party tested supplements →Quick Facts
- Trust Score
- 85/100
- Grade
- A
- Risk Level
- LOW
- Third-Party Tested
- Yes
- FDA Recalls
- 0
- Adverse Reports
- 0