Grade: C

MEDIUM RISK

SirenLabs

Item: SirenLabs
Rating: 50
Author: SupplementChecker

SirenLabs has a Trust Score of 50/100, which is a Grade C, indicating a MEDIUM risk level. SirenLabs does not claim to use third-party testing. Consumers should carefully evaluate SirenLabs reviews and consider the lack of independent verification before purchasing.

SirenLabs Trust Summary

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

SirenLabs 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 SirenLabs Third-Party Tested?

No — SirenLabs 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 SirenLabs a Good Brand?

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

About SirenLabs

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

Product Specialization

SirenLabs specializes in protein supplements. Specific product types may include protein powders and related formulations.

Testing & Certifications Explained

SirenLabs does not have any certifications on record. This means that there is no independent organization verifying the quality, purity, or safety of their products. For consumers, this lack of certification means they must rely solely on the brand's claims without external validation. Many consumers look for third-party tested supplements to ensure what is on the label is in the product.

How SirenLabs Compares

Many brands in the protein supplement category pursue third-party certifications to build consumer trust. For example, Transparent Labs (Trust Score: 92/100) and Klean Athlete (Trust Score: 88/100) both have higher trust scores and actively seek certifications like Informed Sport or NSF Certified for Sport. These certifications provide assurance that their products are tested for banned substances and contaminants, which SirenLabs currently lacks.

Buying Guidance

Given SirenLabs' Trust Score and lack of third-party testing, consumers should exercise caution. Check "SirenLabs reviews" from multiple sources before buying. Purchase from reputable retailers and carefully examine product labels upon arrival.

Frequently Asked Questions

Has SirenLabs had any recalls?

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

Are SirenLabs supplements third-party tested?

No — SirenLabs 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 SirenLabs safe?

SirenLabs 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 SirenLabs a good brand?

SirenLabs 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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