⚠ All products are for laboratory research use only. Not for human or veterinary use.
Research-grade · HPLC-verified · COA on every batch

Depth. Speed.
Purity.

Bluefin Peptides supplies rigorously tested, US-stocked research peptides — ≥99% HPLC-verified purity, independent mass-spec confirmation, and batch-level documentation on every vial. Ordered by noon, in the water by two.

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≥99%HPLC-verified purity
3rd-PartyIndependent lab testing
Same-DayShips before 2pm ET
Cold-ChainTemperature-controlled
Batch COAScan & verify any vial

Catalog

Retatrutide research vial

Retatrutide

99.3% PURITY · BATCH BF-3101

Triple-agonist research peptide, lyophilized powder. For laboratory research use only.

$140.00
Tirzepatide research vial

Tirzepatide

99.4% PURITY · BATCH BF-3102

Dual GIP/GLP-1 research peptide, lyophilized powder. For laboratory research use only.

$120.00
GLOW Blend research vial

GLOW Blend

99.1% PURITY · BATCH BF-3103

GHK-Cu / BPC-157 / TB-500 research blend, lyophilized powder. For laboratory research use only.

$105.00
KLOW Blend research vial

KLOW Blend

99.0% PURITY · BATCH BF-3104

KPV / GHK-Cu / BPC-157 / TB-500 research blend, lyophilized powder. For laboratory research use only.

$140.00
BPC-157 research vial

BPC-157

99.5% PURITY · BATCH BF-3105

Pentadecapeptide, lyophilized powder. For laboratory research use only.

$40.00
BPC-500 Blend research vial

BPC-500 Blend

99.2% PURITY · BATCH BF-3106

BPC-157 / TB-500 research blend, lyophilized powder. For laboratory research use only.

$90.00
Ipamorelin research vial

Ipamorelin

99.5% PURITY · BATCH BF-3107

Pentapeptide growth hormone secretagogue, lyophilized powder. For laboratory research use only.

$65.00
Tesamorelin research vial

Tesamorelin

99.3% PURITY · BATCH BF-3108

Growth hormone-releasing factor analog, lyophilized powder. For laboratory research use only.

$67.00
Ipamorelin Blend 8mg / 2mg research vial

Ipamorelin Blend 8mg / 2mg

99.2% PURITY · BATCH BF-3109

Ipamorelin research blend, lyophilized powder. For laboratory research use only.

$68.00
Sermorelin research vial

Sermorelin

99.3% PURITY · BATCH BF-3110

Growth hormone-releasing hormone analog, lyophilized powder. For laboratory research use only.

$70.00
CJC-1295 (No DAC) research vial

CJC-1295 (No DAC)

99.1% PURITY · BATCH BF-3111

GHRH analog, lyophilized powder. For laboratory research use only.

$80.00
GHK-Cu research vial

GHK-Cu

99.4% PURITY · BATCH BF-3112

Copper tripeptide complex, lyophilized powder. For laboratory research use only.

$50.00
Semax research vial

Semax

99.2% PURITY · BATCH BF-3113

Heptapeptide, lyophilized powder. For laboratory research use only.

$55.00
Selank research vial

Selank

99.2% PURITY · BATCH BF-3114

Synthetic heptapeptide, lyophilized powder. For laboratory research use only.

$40.00
Melanotan II research vial

Melanotan II

99.1% PURITY · BATCH BF-3115

Melanocortin research peptide, lyophilized powder. For laboratory research use only.

$35.00
PT-141 research vial

PT-141

99.2% PURITY · BATCH BF-3116

Bremelanotide research peptide, lyophilized powder. For laboratory research use only.

$90.00
Built on data, not promises.
99.7%
Average Purity
HPLC-MS, last 500 batches
3rd-Party
Independent Testing
COA on every batch
Same-Day
Shipping
Orders by 2PM EST
100% US
Synthesis & Stock
Domestic supply chain

Shop by Research Area

01

Growth Hormone Research

Compounds studied for endocrine and somatotropic pathways.

02

Metabolic Research

Peptides investigated in glucose regulation and metabolic function.

03

Tissue Repair Research

Sequences researched in cellular regeneration and recovery.

04

Longevity Research

Compounds explored for cellular aging and senescence.

05

Neurological Research

Peptides studied in cognitive and neural pathways.

06

Cosmetic / Topical Research

Topically studied compounds in dermal applications.

From the Research Desk

All articles →
Jun 15, 2026 · 6 min

Depth of Documentation: What a Complete COA Package Includes

The components of a complete Certificate of Analysis package for research materials, and why depth of documentation, not a single number, is what makes a COA trustworthy.

Read →
May 25, 2026 · 6 min

Heavy-Metal Screening by ICP-MS in Research Materials

How inductively coupled plasma mass spectrometry screens research materials for trace metals, what elemental analysis reveals that organic purity methods cannot, and why it matters.

Read →
May 11, 2026 · 6 min

Solubility and pH Considerations for Peptide Reconstitution

How amino acid sequence, net charge, and solution pH govern peptide solubility, and the analytical mindset a lab brings to reconstituting difficult research materials.

Read →

What Researchers Say About BLUEFIN

★★★★★
Purity matches the COA every time, and shipping is genuinely same-day. The only supplier I trust for my work.
Dr. M. ChenVerified Buyer · 11 orders
★★★★★
The COA-before-purchase policy is why I stay. No other domestic supplier documents like this.
J. RiveraVerified Buyer · 8 orders
★★★★★
Ordered at 1PM, arrived two days later. Discreet packaging, product exactly as described.
K. PattersonVerified Buyer · 3 orders

Research updates from BLUEFIN

New compound releases, batch COAs, and researcher-only notices. No spam — unsubscribe anytime.

Frequently Asked Questions

Are these products research grade?

Yes. Every peptide Bluefin Peptides ships is research grade, third-party tested for 99%+ purity, with a Certificate of Analysis available for each batch. For laboratory research use only.

Are the products intended for human use?

No. All products sold by Bluefin Peptides are for laboratory research use only and are not for human or veterinary use.

How fast do orders ship?

Orders placed before 2PM EST on business days typically ship the same day, excluding weekends and holidays.

Do you provide a Certificate of Analysis?

Yes. A COA with HPLC-MS purity and identity data is available for every batch.

Who can purchase?

Sales are restricted to qualified researchers 21 years or older. An age and research-use attestation is required at checkout.