Tier 1
Tier 1 has a SupplementChecker trust score of 85/100, earning a grade of A and a LOW risk level. Tier 1 claims third-party testing and is Informed Sport certified, meaning every batch is tested for banned substances. This suggests that Tier 1 is a good brand for athletes concerned about banned substances.
Tier 1 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
Tier 1 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 Tier 1
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 Tier 1 Third-Party Tested?
Yes — Tier 1 is Informed Sport certified. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims.
Is Tier 1 a Good Brand?
Tier 1 scores 85/100 (A) — this is an above-average score indicating a trustworthy brand. Tier 1 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 Tier 1
Tier 1 is a US-based, independent sports nutrition brand. The company's founding date is unknown. Tier 1 focuses on providing supplements for athletes and fitness enthusiasts.
Product Specialization
Tier 1 specializes in the sports nutrition category. While specific product types are not detailed, the brand likely offers products such as protein powders, pre-workout supplements, and performance enhancers.
Testing & Certifications Explained
Tier 1's Informed Sport certification means that every batch of their products is tested for banned substances by a third-party laboratory. This certification is highly valued in the sports nutrition industry, as it provides assurance to athletes that the products are free from substances prohibited by sporting organizations. Consumers can verify this certification on the Informed Sport website.
How Tier 1 Compares
Compared to other sports nutrition brands, Tier 1's trust score of 85/100 places it favorably. For example, Optimum Nutrition, a well-known competitor, often scores similarly, while brands lacking third-party certifications may score lower. Transparent Labs, another competitor, distinguishes itself by publishing lab results, a practice Tier 1 does not follow.
Buying Guidance
Given Tier 1's Informed Sport certification and positive trust score, consumers can generally feel confident purchasing their products. Look for the Informed Sport logo on the product packaging and verify the certification on the Informed Sport website before use. While Tier 1 reviews are generally positive, always consider individual needs and consult with a healthcare professional before starting any new supplement regimen.
Frequently Asked Questions
Has Tier 1 had any recalls?
Are Tier 1 supplements third-party tested?
Is Tier 1 safe?
Is Tier 1 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 Tier 1'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/tier-1/" width="220" height="110" frameborder="0" loading="lazy" title="Tier 1 trust score by SupplementChecker"></iframe>
<iframe src="https://supplementchecker.co/embed/tier-1/" width="320" height="160" frameborder="0" loading="lazy" title="Tier 1 trust score by SupplementChecker"></iframe>
<iframe src="https://supplementchecker.co/embed/tier-1/" width="420" height="210" frameborder="0" loading="lazy" title="Tier 1 trust score by SupplementChecker"></iframe>
Paste the snippet anywhere on your site. The badge updates automatically when Tier 1'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 Tier 1 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