Best Immune Support Brands

20 brands ranked by trust score based on certifications, FDA record, and transparency.

20

Brands

61

Avg Score

0

NSF/USP Certified

20

No Testing

Top 3 Most Trusted

Host Defense (Fungi Perfecti)

Score: 75/100 (B+)

✓ Established brand — operating since 1980 (46 years)

Score: 70/100 (B+)

✓ Established brand — operating since 2012 (14 years)

Apex Energetics

Score: 70/100 (B+)

✓ Established brand — operating since 1989 (37 years)

All Immune Support Brands

Host Defense (Fungi Perfecti)

⚠ No third-party testing certifications found

Ener-C

⚠ No third-party testing certifications found

Apex Energetics

⚠ No third-party testing certifications found

Researched Nutritionals

⚠ No third-party testing certifications found

Byron White Formulas

⚠ No third-party testing certifications found

ChildLife Essentials

⚠ No third-party testing certifications found

Sambucol

⚠ No third-party testing certifications found

Vital Plan

⚠ No third-party testing certifications found

Sunhope

⚠ No third-party testing certifications found

Beekeeper's Naturals

⚠ No third-party testing certifications found

Hilma

⚠ No third-party testing certifications found

Herb Pharm Kids

⚠ No third-party testing certifications found

Gaia Herbs Black Elderberry

⚠ No third-party testing certifications found

Airborne

⚠ No third-party testing certifications found

Solgar Ester-C Plus

⚠ No third-party testing certifications found

Bion 3

⚠ No third-party testing certifications found

Ester-C

⚠ No third-party testing certifications found

Emergen-C

⚠ High number of FDA adverse event reports (72)

Zarbee's Naturals

⚠ 2 product recall(s) on record

Ortho Molecular Products

⚠ Received 2 FDA warning letter(s)