Supplement Cert Directory

magnesium

53 certified brands.

Grouped into tiers by the number of independent third-party certifications each brand holds (more bodies = higher tier). Within a tier, brands are ordered by how many of their products are certified, then by how recently each was verified, then Labdoor letter grade breaks remaining ties. This reflects only how thoroughly each brand is independently verified — not product quality, efficacy, or price, and not an endorsement.

Verified by 2 independent bodies

Most independently tested
BrandCertificationsProductsVerifiedShop
Thorne NSF_DIETARY NSF_SPORT 72026-08-17Shop:AmazoniHerbFullscript
Codeage NSF_DIETARY NSF_SPORT 42026-08-17Shop:AmazoniHerbFullscript
Momentous NSF_DIETARY NSF_SPORT 32026-08-17Shop:AmazoniHerbFullscript
Aurora Nutrascience NSF_DIETARY NSF_SPORT 22026-08-17Shop:AmazoniHerbFullscript
BulkSupplements.com NSF_DIETARY NSF_SPORT 22026-08-17Shop:AmazoniHerbFullscript
Core Med Science NSF_DIETARY NSF_SPORT 22026-08-17Shop:AmazoniHerbFullscript
Designs for Health NSF_DIETARY NSF_SPORT 22026-08-17Shop:AmazoniHerbFullscript
Anza Nutraceuticals NSF_DIETARY NSF_SPORT 12026-08-17Shop:AmazoniHerbFullscript
Nestlé Health Science NSF_DIETARY NSF_SPORT 12026-08-17Shop:AmazoniHerbFullscript
New Capstone, Inc. NSF_DIETARY NSF_SPORT 12026-08-17Shop:AmazoniHerbFullscript
NextFoods NSF_DIETARY NSF_SPORT 12026-08-17Shop:AmazoniHerbFullscript

Verified by 1 independent body

BrandCertificationsProductsVerifiedShop
Garden of Life NSF_DIETARY 52026-08-17Shop:AmazoniHerbFullscript
International Vitamin Corporation NSF_DIETARY 52026-08-17Shop:AmazoniHerbFullscript
Target Corporation NSF_DIETARY 52026-08-17Shop:AmazoniHerbFullscript
Etixx INFORMED 42026-08-17Shop:AmazoniHerbFullscript
LTF Club Operations Company, Inc. NSF_DIETARY 42026-08-17Shop:AmazoniHerbFullscript
Access Business Group, LLC NSF_DIETARY 32026-08-17Shop:AmazoniHerbFullscript
Double Wood LLC NSF_DIETARY 22026-08-17Shop:AmazoniHerbFullscript
Nature's Truth NSF_DIETARY 22026-08-17Shop:AmazoniHerbFullscript
PILLAR Performance INFORMED 22026-08-17Shop:AmazoniHerbFullscript
Theralogix, LLC NSF_DIETARY 22026-08-17Shop:AmazoniHerbFullscript
American Health Formulations, Inc NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
Applied Nutrition INFORMED 12026-08-17Shop:AmazoniHerbFullscript
BetterYou INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Boston Nutraceutical Science NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
Centenarian Road INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Complex INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Crown Sport Nutrition INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Daemon Power INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Farmacias de Similares TX LLC NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
Fourfive INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Heali INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Healthspan Elite INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Heights INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Jiabei Health Technology Co., Ltd NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
MOM Enterprises, Inc. NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
Magceutics LLC NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
NAMEDSPORT> INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Nature Made USP 12026-08-17Shop:AmazoniHerbFullscript
OLLY, Public Benefit Corporation NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
One Sol BSCG 12026-08-17Shop:AmazoniHerbFullscript
Organixx NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
Powerbar INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Precision Engineered by Holland & Barrett INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Puresport INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Raw Sport INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Revive INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Ritual NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
SHIFT INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Ten Percent Club INFORMED 12026-08-17Shop:AmazoniHerbFullscript
Toplux LLC NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
Vitalitown, Inc NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript
You Vites, LLC NSF_DIETARY 12026-08-17Shop:AmazoniHerbFullscript

Best magnesium for: Sleep · Heart Health