Peptide Referee

Peptidology review: is it legit?

Live Transparency score 90/100 Checked Oct 15, 2026. Visit peptidology.co

Our findings in brief

In short: Peptidology scores 90/100, higher than 98% of the 192 active vendors we track. It's #2 on our best peptide vendors list.

We haven't lab-tested anything from Peptidology, so this covers public evidence only, not product quality. As of Oct 15, 2026:

What checks out

Across 3 peptides that at least three vendors sell, its best prices are typically 18% below the median (3 of 3 below). Compare its prices.

At a glance

Website
peptidology.co
Status
Live
Domain registered
Nov 26, 2024 (22 months ago)
Registrar
Cloudflare, Inc.
Domain expires
Nov 26, 2029
First archived
Jan 23, 2025
Shop platform
WooCommerce
Ships to (stated)
US
Payment (stated)
Card
COAs
Batch COAs public (Vanguard Laboratory, TrustPointe Analytics)
Research-use disclaimer
Yes
Traffic rank (Tranco)
Outside the top 1 million

Transparency checks

Six checks of public information, worth 100 points. The score measures openness, not product quality. How we score.

CheckWhat we foundPointsEvidence
Domain age Registered Nov 26, 2024 (22 months old) 10/20 Registry record
Public certificates of analysis Batch-specific COAs are public 25/25 COA page
Independent lab named on COAs Lab named: Vanguard Laboratory, TrustPointe Analytics 10/10 COAs
Business identity Company name (Nine of One LLC) and address published 15/15 Company name · Address
Shipping, refund and terms pages All three found 15/15 Shipping · Refund · Terms
Card or PayPal payment (buyer protection) Site lists card 15/15 Card

Total: 90/100. All six checks completed.

Peptidology prices compared

The lowest price per milligram at Peptidology for each peptide, against the median listing across all vendors we track. Rank 1 = cheapest vendor for that peptide.

Peptide Peptidology $/mg Median $/mg vs median Price rank
GHK-Cu $0.542/mg $0.590/mg −8% 38th of 91
BPC-157 $2.82/mg $5.28/mg −47% 12th of 82
TB-500 $5.09/mg $6.17/mg −18% 26th of 80

Price index: 0.82 (1.00 = market median; lower is cheaper), across 3 peptides sold by 3+ vendors.

All Peptidology listings (10)

Peptide Product Size Price $/mg vs median Stock Vendor's page
BPC-157 BPC-157 11 mg $31 $2.82/mg −47% In stock View
BPC-157 BPC-157 10 mg $29 $2.90/mg −45% In stock View
BPC-157 BPC-157 · 20mg | Batch 1696 | 99.30% Purity 20 mg $64 $3.20/mg −39% In stock View
BPC-157 BPC-157 · 11.57mg | Batch 1727 11.57 mg $48 $4.15/mg −21% In stock View
GHK-Cu GHK-Cu Copper Peptide · 145.86mg | Batch 1758 145.86 mg $79 $0.542/mg −8% In stock View
GHK-Cu GHK-Cu Copper Peptide · 98.85mg | Batch 1767 98.85 mg $70 $0.708/mg +20% In stock View
GHK-Cu GHK-Cu Copper Peptide · 51.61mg | Batch 1682 | 99.80% Purity 51.61 mg $43 $0.833/mg +41% In stock View
GHK-Cu GHK-Cu Copper Peptide 50 mg $45 $0.900/mg +53% In stock View
TB-500 TB-500 · 10.8mg | Batch 1775 10.8 mg $55 $5.09/mg −18% In stock View
TB-500 TB-500 10 mg $57 $5.70/mg −8% Out of stock View

Prices come from each vendor's public product feed and were last fetched Oct 15, 2026. They exclude shipping and discounts. $/mg uses the labeled amount, not measured content. How we compare prices.

Alternatives to Peptidology

Live vendors selling the same peptides as Peptidology, ranked by transparency score. Payments from vendors never affect this order.

# Vendor Status Transparency Domain age COAs Ships to Prices tracked Lab tests
1 Pure Peptide Labs Live 90/100 12 months Batch COAs public US, worldwide 44 —
2 Eros Peptides Live 87/100 3.4 years Generic COAs only US 14 —
3 Nationwide Peptides Live 85/100 11 months Batch COAs public US 38 —
4 Go Alpha Labs Live 83/100 17 months Batch COAs public US 47 —
5 Evolve BioPep Live 83/100 21 months Batch COAs public US, worldwide 27 —

Is something wrong?

If you run Peptidology, or you have evidence that something here is out of date, email [email protected] with a link to the evidence. We re-check within five business days and log every change on our corrections page.

Evidence we used (21)