Grade: C

MEDIUM RISK

Combine2

Item: Combine2
Rating: 50
Author: SupplementChecker

Combine2 has a Trust Score of 50/100, which is a Grade C and indicates a MEDIUM risk level. Combine2 does not claim to use third-party testing for its supplements. This is a significant factor for consumers seeking independently verified products.

Combine2 Trust Summary

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

Combine2 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 Combine2 Third-Party Tested?

No — Combine2 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 Combine2 a Good Brand?

Combine2 scores 50/100 (C) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Combine2 has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Combine2

Combine2 is a vitamins brand operating independently in the US. The founding date of Combine2 is unknown. They offer a range of vitamin supplements.

Product Specialization

Combine2 specializes in vitamins. While specific product lines are not detailed, they likely offer a variety of single-ingredient and multi-vitamin formulations.

Testing & Certifications Explained

Combine2 does not have any third-party testing certifications on record. This means there is no independent organization verifying the contents and purity of their supplements. For consumers, this lack of certification means there's no guarantee that the ingredients listed on the label are accurate or that the product is free from contaminants. Consumers often look for certifications like USP, NSF, or Informed-Sport to ensure product quality.

How Combine2 Compares

Many vitamin brands prioritize third-party testing to build consumer trust. For example, Thorne Research (Trust Score: 92/100) and Klean Athlete (Trust Score: 88/100) are known for their rigorous testing and certifications. These brands achieve higher trust scores by demonstrating a commitment to transparency and quality control, unlike Combine2, which does not publish lab results. Consumers often compare "Combine2 reviews" to those of brands with more visible certifications.

Buying Guidance

Given Combine2's Trust Score and lack of third-party testing, consumers should exercise caution. If you choose to purchase Combine2 products, buy directly from the manufacturer or authorized retailers to minimize the risk of counterfeit products. Look for any available information on ingredient sourcing or testing, even if it's not a formal certification.

Frequently Asked Questions

Has Combine2 had any recalls?

No — as of 2026, Combine2 has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. Combine2 received a trust score of 50/100 from SupplementChecker.

Are Combine2 supplements third-party tested?

No — Combine2 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 Combine2 safe?

Combine2 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 Combine2 a good brand?

Combine2 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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