Grade: C

MEDIUM RISK

Mason Natural

Item: Mason Natural
Rating: 50
Author: SupplementChecker

Mason Natural has a Trust Score of 50/100, which is a Grade C, indicating a MEDIUM risk level. Notably, Mason Natural does not appear to have any third-party testing certifications. This means there is no independent verification of ingredient purity or potency, so consumers need to be aware of this when considering if Mason Natural is a good brand.

Mason Natural Trust Summary

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

Mason Natural 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 Mason Natural Third-Party Tested?

No — Mason Natural 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 Mason Natural a Good Brand?

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

About Mason Natural

Mason Natural is a supplement brand operating independently in the US. The company's founding date is unknown. They offer a wide range of vitamins, minerals, and herbal supplements.

Product Specialization

Mason Natural offers products across several supplement categories, including vitamins, minerals, herbal remedies, fish oil, and protein supplements. They are known for providing a wide variety of basic vitamins and mineral supplements.

Testing & Certifications Explained

Mason Natural does not appear to have any third-party testing certifications. This means that their products are not independently verified for ingredient accuracy, purity, or potency by organizations like USP, NSF, or Informed Sport. Consumers should be aware that the absence of these certifications means there is no independent assurance of product quality.

How Mason Natural Compares

Compared to brands like Nature Made (Trust Score: 75) and NOW Foods (Trust Score: 82), Mason Natural's Trust Score is significantly lower, primarily due to the lack of third-party testing. These competitors invest in certifications to demonstrate product quality, whereas Mason Natural does not. Another competitor, Puritan's Pride (Trust Score: 60), also has a higher trust score, but also lacks comprehensive third-party testing.

Buying Guidance

Given Mason Natural's lack of third-party testing, consumers should exercise caution and carefully evaluate product labels. Purchase Mason Natural products from reputable retailers to ensure authenticity. Check Mason Natural reviews from multiple sources before purchasing.

Frequently Asked Questions

Has Mason Natural had any recalls?

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

Are Mason Natural supplements third-party tested?

No — Mason Natural 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 Mason Natural safe?

Mason Natural 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 Mason Natural a good brand?

Mason Natural 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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