Supplement Brand Directory

We score every product on the same four-pillar rubric regardless of brand reputation or marketing spend. Below are the brands in our database, ranked by average product grade across all supplements we have scored.

Optimum Nutrition

2 products scored

Avg
A
Third-party tested

100%

Avg cost/day

$0.71

Optimum Nutrition is one of the most recognized names in sports nutrition, best known for their Gold Standard Whey Protein and micronized creatine.

Informed ChoiceGMP Certified

Nordic Naturals

1 product scored

Avg
A
Third-party tested

100%

Avg cost/day

$0.47

Nordic Naturals is a specialist brand focused almost entirely on omega-3 fish oil.

IFOS 5-StarFriend of the Sea

Thorne

13 products scored

Avg
A-
Third-party tested

100%

Avg cost/day

$0.62

Thorne is a practitioner-grade supplement company trusted by Mayo Clinic, multiple professional sports teams, and the US Olympic Committee.

NSF Certified for SportcGMP+

Pure Encapsulations

10 products scored

Avg
A-
Third-party tested

100%

Avg cost/day

$0.48

Pure Encapsulations is a practitioner-grade brand built around one principle: hypoallergenic formulations with no unnecessary additives.

Eurofins/Silliker testedGMP+ certified

Jarrow Formulas

6 products scored

Avg
A-
Third-party tested

33%

Avg cost/day

$0.20

Jarrow Formulas has been producing science-based supplements since 1977.

GMP Certified

Carlson

1 product scored

Avg
A-
Third-party tested

100%

Avg cost/day

$0.46

Carlson is a family-owned company that, like Nordic Naturals, specializes in fish oil.

IFOS CertifiedFDA-registered lab tested

NOW Foods

14 products scored

Avg
B+
Third-party tested

64%

Avg cost/day

$0.21

NOW Foods is one of the largest supplement manufacturers in the US, founded in 1968.

NPA GMP AuditedISO 17025 lab

Nature Made

10 products scored

Avg
B+
Third-party tested

100%

Avg cost/day

$0.09

Nature Made is the #1 pharmacist-recommended supplement brand in the US and carries USP Verified status on many products.

USP VerifiedGMP Certified

Life Extension

9 products scored

Avg
B+
Third-party tested

89%

Avg cost/day

$0.31

Life Extension is a research-focused brand that funds its own clinical studies and tends to use patented, branded ingredients in its formulations.

Third-party testedGMP Certified

Sports Research

4 products scored

Avg
B+
Third-party tested

100%

Avg cost/day

$0.31

Sports Research is a newer entrant in the supplement space that has differentiated itself through third-party testing credentials.

Informed Sport CertifiedIFOS 5-Star

Doctor's Best

4 products scored

Avg
B+
Third-party tested

75%

Avg cost/day

$0.15

Doctor's Best is a value-focused brand that frequently uses branded, patented ingredients - Albion TRAACS chelated minerals, BioPerine, C3 Complex curcumin.

GMP Certified

Kirkland Signature

3 products scored

Avg
B+
Third-party tested

100%

Avg cost/day

$0.04

Kirkland Signature is Costco's private-label brand, and it consistently punches above its weight in supplement quality.

USP Verified

Nutricost

3 products scored

Avg
B+
Third-party tested

67%

Avg cost/day

$0.13

Nutricost is a budget brand with a minimalist approach: simple, single-ingredient formulations at the lowest possible price.

GMP Certified

Solgar

2 products scored

Avg
B+
Third-party tested

100%

Avg cost/day

$0.22

Solgar has been manufacturing supplements since 1947, making them one of the oldest brands in the industry.

GMP Certified

Garden of Life

8 products scored

Avg
B
Third-party tested

75%

Avg cost/day

$0.40

Garden of Life positions itself as the organic, whole-food supplement brand.

USDA OrganicNon-GMO Project Verified