Company Directory

Every company we cover has a permanent structured profile: current Index Score™, complete independent testing history, transparency records, fulfillment data, and community reports.

Apex Peptides Austin, TX · Founded 2019
92/100 Apex Peptides: Index Score 92 out of 100, Exceptional Exceptional

Research-compound supplier with published third-party COAs and consistent independent testing performance.

4 independent tests Reviewed Aug 12, 2026 +3up 3 points
Research Peptides Co. Denver, CO · Founded 2018
89/100 Research Peptides Co.: Index Score 89 out of 100, Excellent Excellent

Established supplier with strong purity results and improving transparency practices.

3 independent tests Reviewed Aug 10, 2026 +2up 2 points
PureSci Labs Raleigh, NC · Founded 2020
87/100 PureSci Labs: Index Score 87 out of 100, Excellent Excellent

Quality-focused supplier with excellent manufacturing disclosure and moderate catalog depth.

2 independent tests Reviewed Aug 5, 2026 unchanged
BioRegen Research San Diego, CA · Founded 2021
85/100 BioRegen Research: Index Score 85 out of 100, Excellent Excellent

Fast-growing supplier with top-tier recent test results and developing service infrastructure.

1 independent test Reviewed Aug 8, 2026 +3up 3 points
NextGen Peptides Phoenix, AZ · Founded 2017
83/100 NextGen Peptides: Index Score 83 out of 100, Excellent Excellent

Large catalog and competitive pricing; recent testing showed one under-label quantity result.

2 independent tests Reviewed Aug 2, 2026 -3down 3 points

Under active review

Northstar Research Labs Minneapolis, MN · Founded 2019
81/100 Northstar Research Labs: Index Score 81 out of 100, Excellent Excellent

Consistent mid-pack performer with reliable fulfillment and standard disclosure.

2 independent tests Reviewed Jul 28, 2026 +1up 1 points
Meridian Peptide Research Portland, OR · Founded 2020
80/100 Meridian Peptide Research: Index Score 80 out of 100, Excellent Excellent

Smaller catalog with strong quality focus and highly rated customer service.

1 independent test Reviewed Jul 30, 2026 +2up 2 points
Helix Research Supply Miami, FL · Founded 2018
76/100 Helix Research Supply: Index Score 76 out of 100, Good Good

Broad catalog and marketing-forward brand; disclosure lags category leaders.

3 independent tests Reviewed Jul 22, 2026 +2up 2 points
Novum BioResearch Boston, MA · Founded 2022
74/100 Novum BioResearch: Index Score 74 out of 100, Good Good

Newer entrant with promising first test results and limited operating history.

1 independent test Reviewed Jul 15, 2026 New
Sterling Compound Co. Nashville, TN · Founded 2019
68/100 Sterling Compound Co.: Index Score 68 out of 100, Fair Fair

Mixed testing history; customer-service scores declined in the 2026 review cycle.

2 independent tests Reviewed Jul 18, 2026 -4down 4 points

Under active review

Vector Peptide Supply Salt Lake City, UT · Founded 2021
66/100 Vector Peptide Supply: Index Score 66 out of 100, Fair Fair

Value-oriented supplier with acceptable results and minimal disclosure.

1 independent test Reviewed Jul 10, 2026 +1up 1 points
Cascade Research Group Las Vegas, NV · Founded 2023
41/100 Cascade Research Group: Index Score 41 out of 100, Low Low

Failed our most recent purity test; currently under active review.

2 independent tests Reviewed Jul 2, 2026 -17down 17 points

Under active review