Grade: D

HIGH RISK

Emergen-C

Item: Emergen-C
Rating: 45
Author: SupplementChecker

Part of Haleon (formerly GSK Consumer)

https://www.emergenc.com Est. 1978 (48 years)

Emergen-C has a SupplementChecker.co trust score of 45/100, which is a Grade D, indicating a HIGH risk level. Emergen-C is GMP Certified but there is no evidence the brand is third-party tested. Consumers should be aware of the brand's high number of FDA adverse event reports.

Emergen-C Trust Summary

Trust Score: 45/100 (Below Average)
Grade: D
Risk Level: HIGH
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 75
Years in Business: 48 years
GMP Certified: Yes

Emergen-C has a trust score of 45/100 (Below Average). The brand is not third-party tested by NSF, USP, or Informed Sport, has no FDA recalls on record and 75 adverse event reports and has been in business for 48 years.

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Red Flags

⚠High number of FDA adverse event reports (75)
⚠No third-party testing certifications found

Verified Strengths

✓Established brand — operating since 1978 (48 years)

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

Is Emergen-C Third-Party Tested?

No — Emergen-C 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 Emergen-C a Good Brand?

Emergen-C scores 45/100 (D) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Emergen-C has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Emergen-C

Emergen-C is a vitamin and supplement brand founded in 1978 and owned by Haleon (formerly GSK Consumer). The brand is headquartered in the US and is known for its effervescent vitamin C supplements and other immune support products. Emergen-C is a widely recognized brand in the vitamin and supplement market.

Product Specialization

Emergen-C specializes in products within the vitamin C, immune support, and hydration categories. They are best known for their flavored vitamin C powder packets designed to be mixed with water. Their product line also includes gummies and chewable tablets.

Testing & Certifications Explained

Emergen-C is GMP Certified, which means the manufacturing facility adheres to good manufacturing practices as defined by regulations. However, Emergen-C does not appear to have any third-party testing certifications. This means that an independent organization has not verified the contents and purity of Emergen-C products. Consumers looking for "third-party tested supplements" should be aware of this.

How Emergen-C Compares

Compared to competitors like Airborne (trust score 52/100, no third-party testing) and Nutrafol (trust score 88/100, third-party tested), Emergen-C's trust score falls in the lower range. While all three brands operate in the immune support category, Nutrafol distinguishes itself with a commitment to third-party testing, addressing consumer concerns about product quality and safety. Consumers should consider these factors when evaluating "is Emergen-C a good brand" compared to alternatives.

Buying Guidance

Given Emergen-C's trust score of 45/100, consumers should carefully consider their individual risk tolerance. Purchase from reputable retailers to ensure product authenticity. Consumers concerned about product purity should look for brands with third-party testing certifications.

Frequently Asked Questions

Has Emergen-C had any recalls?

No — as of 2026, Emergen-C has zero FDA product recalls on record. Emergen-C received a trust score of 45/100 from SupplementChecker.

Are Emergen-C supplements third-party tested?

No — Emergen-C 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 Emergen-C safe?

Emergen-C received a trust score of 45/100 (grade: D, risk level: HIGH). 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 Emergen-C a good brand?

Emergen-C scores 45/100 (grade: D) — 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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