Grade: C

MEDIUM RISK

Lean Factor

Item: Lean Factor
Rating: 50
Author: SupplementChecker

Lean Factor has a Trust Score of 50/100, which translates to a grade of C and a MEDIUM risk level. Lean Factor does not appear to conduct third-party testing on its supplements. Consumers should be aware of the limited information available regarding Lean Factor's quality control processes.

Lean Factor Trust Summary

Trust Score: 50/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 0

Lean Factor has a trust score of 50/100 (Fair). The brand is not third-party tested by NSF, USP, or Informed Sport, has no FDA recalls on record and no adverse event reports.

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Red Flags

⚠No third-party testing certifications found
⚠No GMP certification visible

Verified Strengths

✓Clean FDA record — no warnings, recalls, or significant adverse events

Certifications

No certifications on record. This brand has not demonstrated GMP compliance or third-party testing verification.

FDA Record

FDA Warning Letters

Recalls

Adverse Reports

Clean record — no FDA warnings, recalls, or significant adverse events.

Is Lean Factor Third-Party Tested?

No — Lean Factor is not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. No GMP certification was found on record either. We recommend looking for brands with verified third-party testing for the highest confidence in product quality. See our guide to third-party tested supplements.

Is Lean Factor a Good Brand?

Lean Factor scores 50/100 (C) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Lean Factor has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Lean Factor

Lean Factor is a US-based supplement brand operating as an independent company. The founding date of Lean Factor is unknown. They offer products in the specialty supplement category.

Product Specialization

Lean Factor focuses on specialty supplements. Specific product types within this category are not specified, but consumers can expect to find products targeting niche health and wellness needs.

Testing & Certifications Explained

Lean Factor does not have any third-party testing certifications on record. This means that there is no independent verification of the ingredients, potency, or purity of their supplements. Consumers should be aware that the absence of certifications increases the risk of purchasing products that do not meet label claims or contain contaminants. The question of "is Lean Factor third-party tested?" is answered negatively.

How Lean Factor Compares

Compared to other brands in the specialty supplement category, Lean Factor's Trust Score of 50/100 is relatively low. For example, a brand like Klean Athlete (Trust Score 85/100) has NSF Certified for Sport certification, demonstrating a commitment to third-party testing. Another competitor, Thorne Research (Trust Score 90/100), publishes extensive lab results and has multiple certifications. Consumers should consider these differences when evaluating "Lean Factor reviews" and making purchasing decisions.

Buying Guidance

Given Lean Factor's Trust Score and lack of third-party testing, consumers should exercise caution when considering their products. Purchase directly from Lean Factor's website or authorized retailers to ensure authenticity. Prior to purchase, carefully examine the product label and research individual ingredients.

Frequently Asked Questions

Has Lean Factor had any recalls?

No — as of 2026, Lean Factor has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. Lean Factor received a trust score of 50/100 from SupplementChecker.

Are Lean Factor supplements third-party tested?

No — Lean Factor supplements are not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. No independent testing or GMP certification was found on record.

Is Lean Factor safe?

Lean Factor received a trust score of 50/100 (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 Lean Factor a good brand?

Lean Factor scores 50/100 (grade: C) — this is below average. We recommend looking for brands with third-party certifications like NSF or USP. They do not currently hold third-party testing certifications like NSF, USP, or Informed Sport. 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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