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Research-gradepeptides, verifiedfor purity, identity, traceability and consistency
Research-use-only laboratory peptides supplied as lyophilized powder, with lot-level Certificates of Analysis from independent third-party laboratories. US fulfillment.
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From sequence to verified lot
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Before release, each lot goes to an independent laboratory: HPLC for identity, purity and milligrams per vial.
How every lot is verified
Verification covers identity and purity of the supplied material.
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Receipt & quarantine
Incoming material is logged against its lot number and held in quarantine until analysis is complete.
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Independent sampling
Retained samples from the lot are sent to an independent, third-party analytical laboratory.
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HPLC purity analysis
Chromatographic purity is measured and compared against the purity specification for the product.
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Identity & content per vial
The main peak is matched to a reference standard by retention time and UV spectrum, and the milligrams of peptide in the vial are measured against the label.
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COA publication & release
Only lots that meet specification are released, and the signed COA is published under the lot number.
About Peptigen
Peptigen Bioscience supplies research-use-only peptides as lyophilized powder.
Every lot is analyzed by independent third-party laboratories and documented with a lot-level Certificate of Analysis. Orders ship in sealed vials from the United States with a tracking number.
Quality & testingLyophilized powder HPLC purity analysis Cold storage 
Lot-level Certificates of Analysis Identity vs. reference standard 
US fulfillment
Peptigen in numbers
Quality & fulfillment
Every vial label carries a lot number, and that number links to the Certificate of Analysis for the lot: product name and lot number, HPLC chromatogram and reported purity, identity against a reference standard, net peptide content per vial, appearance and form.
Search the COA Library (COA Library)Products are supplied as lyophilized powder in sealed vials, labeled with product name, quantity and lot number. Vials are held in cold storage and delivered in 2–3 business days. Recommended conditions after receipt are stated on the Certificate of Analysis for the lot.
Storage & handling (Sealed vials)We ship only to addresses within the United States. Vials are shipped discreetly. Orders are reviewed against our Terms of Sale and Research Use Policy before dispatch, and a tracking number is emailed when an order is on its way.
Shipping policy (US fulfillment)Materials are supplied strictly for in-vitro laboratory research by trained personnel. Buyers must be 21 years of age or older and purchasing for legitimate laboratory research; we cancel orders that indicate any other intent.
Read the policy (Research use policy)
All peptides
Every position in the catalog, supplied as lyophilized powder for in-vitro laboratory research.
17 products
Bacteriostatic Water
10 ml · 10 ml vial
$15.00
BPC-157
10 mg · 3 ml vial
$40.00
CJC-1295 (no DAC) + Ipamorelin
10 mg · 3 ml vial
Composition: CJC-1295 (no DAC) 5 mg · Ipamorelin 5 mg
$50.00
GHK-Cu
100 mg · 3 ml vial
$55.00
$85.00
Ipamorelin
10 mg · 3 ml vial
$40.00
Kisspeptin-10
10 mg · 3 ml vial
$45.00
$105.00
MOTS-c
10 mg · 3 ml vial
$50.00
NAD+
1000 mg · 10 ml vial
$90.00
Retatrutide
10 mg · 3 ml vial
$55.00
Semax
10 mg · 3 ml vial
$40.00
SS-31
10 mg · 3 ml vial
$40.00
TB-500
10 mg · 3 ml vial
$55.00
Tesamorelin
10 mg · 3 ml vial
$85.00
Tirzepatide
10 mg · 3 ml vial
$40.00
$40.00
Need a lot-specific COA?
Look up the lot number on your vial label, or write to us and we will point you to the right record.