Grade: C

MEDIUM RISK

Physician's Signature

Item: Physician's Signature
Rating: 50
Author: SupplementChecker

Physician's Signature has a SupplementChecker.co trust score of 50/100, a Grade of C, and a MEDIUM risk level. Physician's Signature does not appear to conduct third-party testing on its supplements. Consumers should be aware of this when evaluating if Physician's Signature is a good brand for their needs.

Physician's Signature Trust Summary

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

Physician's Signature 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.

Where to Buy Physician's Signature

Purchase from trusted retailers. We may earn a commission at no extra cost to you.

Buy on iHerb Buy on Amazon

Check another brand:

e.g. Nature Made, Thorne, NOW Foods...

Check

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 Physician's Signature Third-Party Tested?

No — Physician's Signature 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 Physician's Signature a Good Brand?

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

About Physician's Signature

Physician's Signature is a US-based supplement brand operating independently. The founding date of Physician's Signature is unknown. They offer a range of supplements to consumers.

Product Specialization

Physician's Signature focuses on products in the fish oil and vitamins categories. They offer a variety of vitamin and mineral supplements, as well as fish oil products.

Testing & Certifications Explained

Physician's Signature does not appear to have any third-party certifications to verify the quality, purity, or potency of its supplements. This means that there is no independent organization confirming that the products contain the ingredients listed on the label, in the stated amounts, and are free from contaminants. Consumers should be aware that the absence of third-party testing makes it more difficult to assess the quality and safety of Physician's Signature products.

How Physician's Signature Compares

Compared to brands like Nordic Naturals (trust score 85/100) and Thorne Research (trust score 92/100), Physician's Signature's trust score is considerably lower. These competitors invest heavily in third-party testing and certifications like NSF and USP, which Physician's Signature does not appear to do. Garden of Life (trust score 68/100) also has higher visibility of certifications.

Buying Guidance

Given Physician's Signature's trust score and lack of third-party testing, consumers should exercise caution. Purchase from reputable retailers and carefully examine product labels. Consider choosing third-party tested supplements from brands with higher trust scores for greater assurance of quality and safety.

Frequently Asked Questions

Has Physician's Signature had any recalls?

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

Are Physician's Signature supplements third-party tested?

No — Physician's Signature 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 Physician's Signature safe?

Physician's Signature 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 Physician's Signature a good brand?

Physician's Signature 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.

Get FDA Recall Alerts

We'll notify you when FDA recalls affect supplement brands you care about.

Compare Similar Brands

Brands in similar categories with comparable trust profiles. Compare certifications, scores, and safety records.

65/100

Lower rated

Brightside

Grade B • Higher score

65/100

Lower rated

Outwork Nutrition

Grade B • Higher score

65/100

Lower rated

Vital Vitamins

Grade B • Higher score

65/100

Lower rated

Thesis

Grade B • Higher score

65/100

Lower rated

Traditional Medicinals

Grade B • Higher score

Want more comparisons? Browse our supplement categories or check our buying guides.

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.

Promote Your Trust Score

Embed this badge on your site — it displays Physician's Signature's verified trust score and links back to this profile page. Helps show buyers you're transparent about third-party testing.

Small · 220×110

<iframe src="https://supplementchecker.co/embed/physicians-signature/" width="220" height="110" frameborder="0" loading="lazy" title="Physician's Signature trust score by SupplementChecker"></iframe>

Medium · 320×160

<iframe src="https://supplementchecker.co/embed/physicians-signature/" width="320" height="160" frameborder="0" loading="lazy" title="Physician's Signature trust score by SupplementChecker"></iframe>

Large · 420×210

<iframe src="https://supplementchecker.co/embed/physicians-signature/" width="420" height="210" frameborder="0" loading="lazy" title="Physician's Signature trust score by SupplementChecker"></iframe>

Paste the snippet anywhere on your site. The badge updates automatically when Physician's Signature's trust score changes.

Own this brand? Contact us to update your information.

Want to find supplements you can trust?

Third-party testing is the single best indicator of supplement quality. We analyzed Physician's Signature and 500+ other brands to find the ones that actually prove what's on the label.

See the best third-party tested supplements →