OOST
OOST has a SupplementChecker trust score of 60/100, a grade of B, indicating a MEDIUM risk level. OOST claims to offer third-party tested supplements and has Informed Sport certification, meaning every batch is tested. However, the brand has a high number of FDA adverse event reports.
OOST Trust Summary
- Trust Score
- 60/100 (Above Average)
- Grade
- B
- Risk Level
- MEDIUM
- Third-Party Tested
- Yes (Informed Sport)
- FDA Recalls
- 0
- Adverse Events
- 63
OOST has a trust score of 60/100 (Above Average). The brand is third-party tested by Informed Sport, has no FDA recalls on record and 63 adverse event reports.
Where to Buy OOST
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Red Flags
- ⚠High number of FDA adverse event reports (63)
- ⚠No GMP certification visible
Verified Strengths
- ✓Informed Sport certified — every batch tested
- ✓Claims third-party testing
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
Is OOST Third-Party Tested?
Yes — OOST is Informed Sport certified. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims.
Is OOST a Good Brand?
OOST scores 60/100 (B) — this is an average score. There may be room for improvement in testing transparency or certifications. OOST 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 OOST
OOST is a sports nutrition brand operating independently in the US. The founding date is unknown. They focus on providing products for athletes and fitness enthusiasts.
Product Specialization
OOST specializes in the sports nutrition category. They likely offer products such as protein powders, pre-workout supplements, and performance enhancers.
Testing & Certifications Explained
OOST's Informed Sport certification means that each batch of their products is tested for substances banned by sports organizations. This certification reduces the risk of athletes inadvertently consuming prohibited substances. While this is a positive, it does not guarantee the absence of all potential contaminants or ensure the product's overall safety.
How OOST Compares
Many sports nutrition brands offer third-party tested supplements. For example, Klean Athlete (trust score 85/100) is NSF Certified for Sport, and Garden of Life (trust score 72/100) offers many Informed-Sport certified products. OOST's trust score of 60/100 is lower than these competitors, primarily due to the high number of FDA adverse event reports and lack of transparency regarding ingredient sourcing and lab results.
Buying Guidance
If considering OOST products, look for the Informed Sport logo to ensure the batch has been tested. Given the high number of FDA adverse event reports, start with small quantities to assess tolerance. Purchase from reputable retailers to ensure product authenticity.
Frequently Asked Questions
Has OOST had any recalls?
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Is OOST safe?
Is OOST 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
- 60/100
- Grade
- B
- Risk Level
- MEDIUM
- Third-Party Tested
- Yes
- FDA Recalls
- 0
- Adverse Reports
- 63
Similar Brands
Lavera Skin Care North America
⚠ No GMP certification visible
KB's Solutions pour Maréchaux dans le Soin des Sabots
⚠ No GMP certification visible
S. LETRAN Consulting
⚠ No GMP certification visible
Origins Natural Resources, Dist.
⚠ No GMP certification visible
Osteocalth Health
⚠ No GMP certification visible