Grade: C

MEDIUM RISK

Mass Probiotics

Item: Mass Probiotics
Rating: 50
Author: SupplementChecker

Mass Probiotics has a SupplementChecker.co trust score of 50/100, a Grade C, indicating a MEDIUM risk level. Mass Probiotics does not appear to conduct third-party testing on its products. Consumers should be aware of the lack of independent verification when considering Mass Probiotics reviews.

Mass Probiotics Trust Summary

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

Mass Probiotics 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 Mass Probiotics Third-Party Tested?

No — Mass Probiotics 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 Mass Probiotics a Good Brand?

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

About Mass Probiotics

Mass Probiotics is an independent supplement brand based in the US. The company's founding date is unknown. They offer a range of supplements and aim to provide health solutions to consumers.

Product Specialization

Mass Probiotics specializes in specialty supplements. While specific product types are not detailed, this category suggests a focus on niche health needs.

Testing & Certifications Explained

Mass Probiotics does not have any third-party testing certifications on record. This means that no independent organization has verified the quality, purity, or potency of their products. Without third-party testing, it's more difficult for consumers to be confident that the supplement contains the ingredients listed on the label and is free from contaminants. The absence of GMP certification also raises concerns about manufacturing quality control.

How Mass Probiotics Compares

Compared to other brands in the specialty supplement category, Mass Probiotics lags behind in trust and transparency. For example, competitor 'BioSchwartz' (trust score 75/100) provides third-party testing and GMP certification. Another competitor, 'NatureWise' (trust score 68/100), also demonstrates greater transparency through published lab results. This makes it harder to answer 'is Mass Probiotics a good brand' when compared to competitors.

Buying Guidance

Given the lack of third-party testing and transparency, consumers should exercise caution when purchasing Mass Probiotics products. Purchase directly from the manufacturer's website or authorized retailers to minimize the risk of counterfeit products. Look for any available batch-specific lab results or certificates of analysis, even if not explicitly advertised.

Frequently Asked Questions

Has Mass Probiotics had any recalls?

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

Are Mass Probiotics supplements third-party tested?

No — Mass Probiotics 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 Mass Probiotics safe?

Mass Probiotics 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 Mass Probiotics a good brand?

Mass Probiotics 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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