Grade: C

MEDIUM RISK

OneSecond Supplements

Item: OneSecond Supplements
Rating: 50
Author: SupplementChecker

OneSecond Supplements has a SupplementChecker.co trust score of 50/100, which equates to a grade of C and a MEDIUM risk level. Notably, there's no evidence of third-party testing certifications for OneSecond Supplements. This means consumers lack independent verification of product quality and label accuracy.

OneSecond Supplements Trust Summary

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

OneSecond Supplements 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 OneSecond Supplements Third-Party Tested?

No — OneSecond Supplements 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 OneSecond Supplements a Good Brand?

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

About OneSecond Supplements

OneSecond Supplements is a US-based vitamin brand operating independently. The founding date of OneSecond Supplements is unknown. They offer products in the competitive supplement market.

Product Specialization

OneSecond Supplements focuses on vitamins. Specific product types offered by OneSecond Supplements are not detailed, but fall within the general category of vitamin supplements.

Testing & Certifications Explained

OneSecond Supplements does not appear to have any third-party testing certifications. This means that independent organizations are not verifying the quality, purity, or potency of their products. Consumers must rely solely on the brand's own claims, without external validation. The absence of certifications impacts the 'is OneSecond Supplements safe?' question.

How OneSecond Supplements Compares

Many vitamin brands pursue third-party certifications to demonstrate product quality. For example, competitor brands like Nature Made (trust score 75/100) and Thorne Research (trust score 90/100) undergo rigorous testing and certification processes. These brands achieve higher trust scores than the OneSecond Supplements trust score due to their commitment to transparency and independent verification.

Buying Guidance

Given the lack of third-party testing, consumers should exercise caution when purchasing OneSecond Supplements. Purchase directly from the manufacturer or authorized retailers to minimize the risk of counterfeit products. Always carefully review product labels and consult with a healthcare professional before starting any new supplement regimen. Consider that 'is OneSecond Supplements third-party tested?' is a key question to ask before purchasing.

Frequently Asked Questions

Has OneSecond Supplements had any recalls?

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

Are OneSecond Supplements supplements third-party tested?

No — OneSecond Supplements 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 OneSecond Supplements safe?

OneSecond Supplements 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 OneSecond Supplements a good brand?

OneSecond Supplements 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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