Grade: C

MEDIUM RISK

EST

Item: EST
Rating: 55
Author: SupplementChecker

EST has a SupplementChecker.co trust score of 55/100, a grade of C, indicating MEDIUM risk. EST is NSF Certified for Sport, meaning their products are tested for banned substances. However, EST does not publish lab results and has a high number of FDA adverse event reports.

EST Trust Summary

Trust Score: 55/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: Yes (NSF)
FDA Recalls: 0
Adverse Events: 174

EST has a trust score of 55/100 (Fair). The brand is third-party tested by NSF, has no FDA recalls on record and 174 adverse event reports.

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Red Flags

⚠High number of FDA adverse event reports (174)
⚠No GMP certification visible

Verified Strengths

✓NSF Certified for Sport — banned substance tested

Certifications

NSF CertifiedThird-Party Tested

Third-party testing means an independent laboratory has verified this product's contents, purity, and potency match what's on the label.

FDA Record

FDA Warning Letters

Recalls

174

Adverse Reports

Is EST Third-Party Tested?

Yes — EST is NSF-certified. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims.

Is EST a Good Brand?

EST scores 55/100 (C) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. EST has a clean FDA record with no warnings or recalls. The brand holds third-party certifications (NSF-certified), which is a strong quality indicator.

About EST

EST is a US-based brand in the herbal supplement category. The founding date of EST is unknown, and it operates as an independent company. EST's market position is not specified, but it competes with other brands in the herbal supplement space.

Product Specialization

EST specializes in herbal supplements. Specific product types are not detailed, but the brand focuses on products within the herbal category.

Testing & Certifications Explained

EST's NSF Certified for Sport certification means that their products have been tested by NSF International, an independent organization, to ensure they do not contain banned substances. This certification is particularly important for athletes who need to avoid prohibited substances. However, this certification does not guarantee the quality or safety of all ingredients, only that the product is free of banned substances.

How EST Compares

Compared to other brands in the herbal supplement category, EST's trust score of 55/100 places it in the middle range. Some competitors, like Thorne Research (88/100), have higher trust scores and more comprehensive third-party testing. Other brands may lack certifications altogether. Consumers should compare EST reviews and certifications with those of competitors to make an informed decision.

Buying Guidance

If considering EST products, look for the NSF Certified for Sport seal. Given the medium risk level and high number of FDA adverse event reports, consumers should consult with a healthcare professional before use. Purchase from reputable retailers to ensure product authenticity.

Frequently Asked Questions

Has EST had any recalls?

No — as of 2026, EST has zero FDA product recalls on record. EST received a trust score of 55/100 from SupplementChecker.

Are EST supplements third-party tested?

Yes — EST supplements are third-party tested. They hold the following certifications: NSF Certified for Sport. Third-party testing means an independent lab has verified the product's contents, purity, and potency match the label claims.

Is EST safe?

EST received a trust score of 55/100 (grade: C, risk level: MEDIUM). This score is calculated from FDA records, third-party certifications, adverse event reports, and transparency practices. No FDA warnings or recalls are on record.

Is EST a good brand?

EST scores 55/100 (grade: C) — this is below average. We recommend looking for brands with third-party certifications like NSF or USP. They hold third-party certifications (NSF-certified), which is a strong indicator of product quality. No FDA warnings or recalls found.

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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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