Research Peptides
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Third-Party Tested · 99%+ Purity · Order via Discord DM

STACKZ PEPS

Premium Research Peptides

Pharmaceutical-grade research peptides engineered for precision. Every batch independently verified for maximum purity and potency.

Browse Peptides View Lab Reports
Retatrutide 10mg — $45.00
GHK-Cu 100ml — $35.00
Bacteriostatic Water — $10.00
Triple Agonist Peptide
Copper Tripeptide-1
99%+ Purity Verified
Third-Party Lab Tested
Order via Discord DM
Retatrutide 10mg — $45.00
GHK-Cu 100ml — $35.00
Bacteriostatic Water — $10.00
Triple Agonist Peptide
Copper Tripeptide-1
99%+ Purity Verified
Third-Party Lab Tested
Order via Discord DM
99.6%
Avg. Purity
3
Products
3rd Party
Lab Tested
Discord
Order via DM

Featured Peptides

Triple Agonist
Retatrutide
GLP-1 / GIP / Glucagon Receptor Agonist · 10mg

A novel triple receptor agonist targeting GLP-1, GIP, and glucagon receptors simultaneously. One of the most advanced compounds currently under clinical investigation for metabolic research. 10mg lyophilized vial — high-purity, third-party verified.

Copper Peptide
GHK-Cu
Copper Tripeptide-1 · 100ml Solution

Glycyl-L-histidyl-L-lysine copper complex — a naturally occurring tripeptide with copper binding affinity. Extensively studied for its role in collagen synthesis, antioxidant activity, and cellular signaling research. 100ml ready-to-use solution.

Essential Supply
Bacteriostatic Water
0.9% Benzyl Alcohol · Sterile · 10ml

Pharmaceutical-grade bacteriostatic water for reconstituting lyophilized peptide vials. Contains 0.9% benzyl alcohol to inhibit bacterial growth. Essential for proper peptide preparation in any research setting.

Shop by Category

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Retatrutide
Triple GLP-1 / GIP / Glucagon Agonist · 10mg
View Product →
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GHK-Cu
Copper Tripeptide-1 · 100ml Solution
View Product →
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Bacteriostatic Water
Sterile Reconstitution Solution · 10ml
View Product →

Why Choose Stackz Peps

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Third-Party Lab Tested

Every single batch is independently tested by certified labs. We publish full CoAs (Certificate of Analysis) with HPLC purity verification for total transparency.

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Order via Discord DM

No checkout hassle. Simply join our Discord and send us a DM with your order. We'll walk you through payment and get your research compounds on their way fast.

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Secure & Discreet

256-bit encrypted checkout. All orders shipped in plain unmarked packaging with no identifiable branding on the outside of the package.

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Expert Support

Our team includes researchers with deep scientific backgrounds. We answer technical questions about peptide handling, storage, and reconstitution.

Third-Party Lab Reports

Certificate of Analysis
Retatrutide 10mg
Report #: IF-824-QSA-TR006-2026-01-46  ·  Lot: JR3AMVD  ·  Tested: 01/07/2026
✓ PASS
BTLabs · BioTools
HPLC Purity
99.6%
Spec: ≥ 98%
HPLC Potency
101.9%
10.2mg of label claim
FTIR Identity
Confirmed Retatrutide
Appearance
White powder · USP <630>
Testing Method: FTIR and HPLC analysis (USP <621>, USP <197A>) for identification, purity, potency and composition. Verified by Andrea Castro AS & Verna Zheng AS, Scientists at BTLabs — 5730 Corporate Way, West Palm Beach, FL 33407.
Certificate of Analysis
GHK-Cu 100mg
Lab #: 131165  ·  Project: 135568  ·  CAS: 49557-75-7  ·  Tested: 12/21/2025
✓ PASS
Krause Analytical
Chromatographic Purity
>99.95%
HPLC-UV/MS Method
GHK-Cu Content
99.5%
99.5mg of label claim
Identity
ID Confirmed HPLC-UV-MS
Test ID
tfn6kvf
Verify at finnrick.com
Testing Method: HPLC-UV/MS peptide analysis per USP/NF 621. Verified by Mark C. Krause, Laboratory Director — Krause Analytical LLC, 8127 Mesa Drive Suite B-206, Austin, TX 78759. Report issued 12/29/2025.
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Research Use Only. All products sold by Stackz Peps are strictly for laboratory and in-vitro research purposes only. These products are not drugs, food products, or dietary supplements. They are not intended for human or veterinary use. By purchasing from Stackz Peps, you confirm you are a qualified researcher and agree that these products will only be used in approved laboratory settings in compliance with all applicable local, state, and federal regulations.

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