Supplement Safety Guides
In-depth guides to help you make informed supplement choices.
Featured · Live DatabaseSupplement Recall Database
Every FDA and Health Canada supplement recall on record — searchable by brand, source, and year. Updated daily.
Browse all recalls →
The 50 Most Trusted Supplement Brands of 2026 (Ranked by FDA Data)
We ranked 7,800+ supplement brands by independent trust score using FDA data, NSF, USP, and Informed Sport certifications. Here are the top 50 for 2026.
Trust & VerificationWhich Supplement Brands Are Third-Party Tested? (2026 Data)
We checked 7,800+ supplement brands. See which ones have NSF, USP, and Informed Sport certifications — and which just claim "third-party tested."
Trust & VerificationSupplement Brands With Multiple Independent Certifications
Brands holding 2+ recognized certifications (NSF, USP, Informed Sport/Choice) — the highest trust tier in the database.
Data StudyWe Analyzed 500+ Supplement Brands. Here's What We Found.
Data study: trust scores, FDA records, and certification status for 500+ supplement brands.
Data StudySupplement Brands Using Proprietary Blends (Full List)
Which supplement brands hide doses behind proprietary blends — data study across 7,800+ brands with trust score comparison.
Trust & VerificationIs My Supplement Brand Legit? How to Check in 60 Seconds
A five-step checklist to verify any supplement brand — FDA record, certifications, proprietary blends, and Certificates of Analysis.
Trust & Verification5 Red Flags Your Supplement Brand Is Hiding Something
The five most reliable warning signs that a supplement brand is cutting corners — from vague testing claims to FDA warning letters.
Trust & VerificationHow to Check If Your Supplement Is Third-Party Tested
What third-party testing actually means, which certifications matter, and how to verify a brand's claims.
CertificationsConsumerLab vs NSF vs USP: Which Supplement Certification Actually Proves Testing?
ConsumerLab, NSF, and USP all test supplements — but only two of them certify brands. Here's the difference and which one tells you what.
CertificationsNSF vs USP vs Informed Sport: Which Certification Matters Most?
A complete breakdown of the three major supplement certifications — what each tests for, who needs which, and how they compare.
CertificationsGMP Certification for Supplements: What It Actually Means
What GMP certification is, why it's the bare minimum, and why it's not the same as third-party testing.
FDA & RegulationFDA Warning Letters to Supplement Companies: What They Mean
What triggers an FDA warning letter, what it means for consumers, and how to check if your brand has one.
FDA & RegulationSupplement Recalls: What They Mean and How to Check
How supplement recalls work, what Class I vs Class II means, and how to check if your supplement was recalled.
SafetyThe Complete Guide to Supplement Safety in 2026
Everything you need to know about supplement contamination, recalls, adverse events, and how to protect yourself.
Consumer EducationHow to Read a Supplement Label (and Spot Red Flags)
Proprietary blends, "other ingredients," dosage tricks — learn what supplement labels are hiding.
Consumer EducationProprietary Blends in Supplements: What They're Hiding
Why supplement companies use proprietary blends, what they're hiding from you, and which brands to choose instead.
Consumer EducationAre Amazon Supplements Safe? What You Need to Know
The risks of buying supplements on Amazon, how to spot counterfeits, and which Amazon brands you can trust.
Third-Party TestingThird Party Tested Supplements: Complete Verified List (2026)
Complete list of third party tested supplement brands with NSF, USP, Informed Sport, and ConsumerLab certifications. 4,000+ brands verified.
Third-Party TestingBest Third-Party Tested Creatine Supplements in 2026
Third-party tested creatine ranked by trust score. Creapure vs generic, heavy metal testing, Informed Sport certified, and NSF verified creatine brands.
Third-Party TestingBest Third-Party Tested Fish Oil Supplements
Fish oil supplements verified by independent labs — NSF, USP, and IFOS certified options ranked by purity and trust.
Third-Party TestingBest Third-Party Tested Omega-3 Supplements
Omega-3 supplements verified by independent testing labs — certified options ranked by purity, potency, and trust.
Third-Party TestingBest Third-Party Tested Magnesium Supplements
Magnesium supplements with verified third-party testing — NSF and USP certified options ranked by form quality and trust.
Category RankingsBest Creatine Brands in 2026 — Ranked by Trust Score
The most trusted creatine brands ranked by certifications, FDA record, and transparency.
Category RankingsBest Protein Powder Brands in 2026 — Ranked by Trust Score
The most trusted protein powder brands ranked by safety data and certifications.
Category RankingsBest Probiotic Brands in 2026 — Ranked by Trust Score
The most trusted probiotic brands ranked by certifications and safety data.
Category RankingsBest Ashwagandha Brands in 2026 — Ranked by Trust Score
The most trusted ashwagandha brands ranked by certifications and safety data.
Category RankingsBest Fish Oil & Omega-3 Brands in 2026 — Ranked by Trust Score
The most trusted fish oil brands ranked by purity testing and certifications.
Category RankingsBest Magnesium Brands in 2026 — Ranked by Trust Score
The most trusted magnesium brands ranked by form quality and certifications.
Category RankingsBest Vitamin D Brands in 2026 — Ranked by Trust Score
The most trusted vitamin D brands ranked by certifications and FDA record.
Use-Case RankingsBest Magnesium for Sleep in 2026 — Ranked by Trust Score
The most trusted magnesium brands for sleep support — glycinate and L-threonate forms ranked by certifications and purity.
Use-Case RankingsBest Fish Oil for Cholesterol in 2026 — Ranked by Trust Score
The most trusted fish oil brands for cholesterol support, ranked by EPA/DHA ratio, IFOS certification, and purity.
Use-Case RankingsBest Multivitamin for Men in 2026 — Ranked by Trust Score
The most trusted multivitamin brands for men, ranked by active B-vitamin forms, zinc, vitamin D3, and third-party testing.
Use-Case RankingsBest Multivitamin for Women in 2026 — Ranked by Trust Score
The most trusted multivitamin brands for women, ranked by methylfolate, iron, calcium, vitamin D3, and third-party testing.
Use-Case RankingsBest Collagen for Skin in 2026 — Ranked by Trust Score
The most trusted collagen brands for skin health, ranked by hydrolyzed peptide form, Type I/III content, and third-party testing.