Grade: B

MEDIUM RISK

Natrol Biotin

Item: Natrol Biotin
Rating: 60
Author: SupplementChecker

Part of i-Health (DSM)

https://www.natrol.com

Natrol Biotin has a SupplementChecker.co trust score of 60/100, which is a Grade B and indicates MEDIUM risk. While Natrol Biotin is GMP Certified and has a clean FDA record, no third-party testing certifications were found. This means that while the manufacturing process is verified, individual product batches are not independently tested for purity and potency.

Natrol Biotin Trust Summary

Trust Score: 60/100 (Above Average)
Grade: B
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 0
GMP Certified: Yes

Natrol Biotin has a trust score of 60/100 (Above Average). 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

Verified Strengths

✓Clean FDA record — no warnings, recalls, or significant adverse events

Certifications

GMP Certified

GMP certification ensures manufacturing quality standards are met, but does not verify that product contents match the label through independent testing. Look for NSF, USP, or Informed Sport certifications for third-party verified products.

FDA Record

FDA Warning Letters

Recalls

Adverse Reports

Clean record — no FDA warnings, recalls, or significant adverse events.

Is Natrol Biotin Third-Party Tested?

No — Natrol Biotin is not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. They do hold GMP certification, which ensures manufacturing quality but does not independently verify product contents. 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 Natrol Biotin a Good Brand?

Natrol Biotin scores 60/100 (B) — this is an average score. There may be room for improvement in testing transparency or certifications. Natrol Biotin has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Natrol Biotin

Natrol Biotin is a brand offering biotin supplements, among other products. The brand is owned by i-Health (DSM). The company's founding date is unknown. Natrol Biotin aims to provide consumers with supplements to support various health and wellness goals.

Product Specialization

Natrol Biotin specializes in vitamins and supplements, particularly within the hair, skin, and nails category. Their most well-known product is biotin, a B-vitamin often used to support hair and nail health. They offer biotin in various dosages and forms.

Testing & Certifications Explained

Natrol Biotin is GMP Certified, meaning their manufacturing processes adhere to Good Manufacturing Practices as verified by a certifying body. However, there are no certifications to confirm that Natrol Biotin is third-party tested. This means that an independent laboratory has not verified the contents of the supplements for purity, potency, and absence of contaminants. Consumers seeking third-party tested supplements should look for certifications like USP, NSF, or Informed-Sport.

How Natrol Biotin Compares

Compared to other brands in the hair, skin, and nails supplement category, Natrol Biotin's trust score of 60/100 places it in the middle range. For example, competitor brand Nature's Bounty has a similar trust score and also lacks third-party testing. In contrast, a brand like NOW Foods, which often has third-party certifications, typically scores higher. Consumers should compare Natrol Biotin reviews and testing information against these competitors to make an informed decision.

Buying Guidance

Given that Natrol Biotin is not third-party tested, consumers should purchase from reputable retailers and carefully examine the product packaging upon arrival. While there is no Natrol Biotin recall history, always check for any recent alerts from the FDA or the company itself. Consider if the lower price point is worth the risk compared to brands that invest in third-party testing.

Frequently Asked Questions

Has Natrol Biotin had any recalls?

No — as of 2026, Natrol Biotin has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. Natrol Biotin received a trust score of 60/100 from SupplementChecker.

Are Natrol Biotin supplements third-party tested?

No — Natrol Biotin supplements are not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. They do have GMP (Good Manufacturing Practice) certification, which ensures manufacturing quality but does not independently verify product contents.

Is Natrol Biotin safe?

Natrol Biotin received a trust score of 60/100 (grade: B, 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 Natrol Biotin a good brand?

Natrol Biotin scores 60/100 (grade: B) — this is an average score. There may be room for improvement in testing transparency or certifications. 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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