High purity research peptides

Buy peptides online with a COA for every batch. Third party tested by accredited US labs, for research use only.

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Certificate of analysis for BPC-157 10 mg: HPLC chromatogram with a main peak of at least 99%, identity confirmed by LC-MS, 10 mg net content, 6 of 6 assays passed

Same day shipping

Take advantage of our expedited shipping service ensuring same-day dispatch.

Free shipping

Rest easy, you’re covered! Enjoy free shipping for all order over $250 USD.

99% Pure Peptide

We offer quality USA made peptides of the highest purity.

Popular products

Best selling peptides

GLP-1SG 5mg/10mg
GLP-1SG 5mg/10mg
99% HPLC · RUO

$95 - $170 USD

Add to Cart
GLP-3RT 5mg/10mg
GLP-3RT 5mg/10mg
99% HPLC · RUO

$115 - $200 USD

Add to Cart
BPC-157 10mg
BPC-157 10mg
99% HPLC · RUO

$90 USD

Add to Cart
AOD9604 5mg/10mg
AOD9604 5mg/10mg
99% HPLC · RUO

$50 - $90 USD

Add to Cart
Sermorelin 10mg
Sermorelin 10mg
99% HPLC · RUO

$90 USD

Add to Cart
NAD+ 100mg
NAD+ 100mg
99% HPLC · RUO

$55 USD

Add to Cart
Cerebrolysin 2g
Out of stock
Cerebrolysin 2g
99% HPLC · RUO

$80 USD

Add to Cart
PT-141
Out of stock
PT-141
99% HPLC · RUO

$55 USD

Add to Cart
MOTS-c 10mg
Out of stock
MOTS-c 10mg
99% HPLC · RUO

$110 USD

Add to Cart
Tesamorelin
Tesamorelin
99% HPLC · RUO

$70 - $125 USD

Add to Cart
TB-500
TB-500
99% HPLC · RUO

$70 - $120 USD

Add to Cart
GLP-2TZ
GLP-2TZ
99% HPLC · RUO

$110 - $350 USD

Add to Cart
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Lab tested and verified

Quality you can verify,
not just trust

Every batch is independently tested by accredited U.S. laboratories. We don't ask you to take our word for it - we hand you the proof, on the record, with every lot.

Documented purity by HPLC
99%

Verified potency

Every vial is assayed by HPLC to confirm it contains exactly what the label states, quantified against a reference standard - no approximations.

Why it matters: peptide content directly determines research outcomes. Underdosed vials waste time and confound the data.

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Certificate of analysis for BPC-157 with a magnifier on the HPLC-UV purity result of 99.4%: sterility, endotoxin, purity, identity and heavy metals all pass, badges for 99% HPLC lab tested and Made in USA

What we offer

The best products at the market

GLP-1SG 5mg/10mg
GLP-1SG 5mg/10mg
99% HPLC · RUO

$95 - $170 USD

Add to Cart
GLP-3RT 5mg/10mg
GLP-3RT 5mg/10mg
99% HPLC · RUO

$115 - $200 USD

Add to Cart
BPC-157, TB-500 10mg
BPC-157, TB-500 10mg
99% HPLC · RUO

$110 USD

Add to Cart
BPC-157 10mg
BPC-157 10mg
99% HPLC · RUO

$90 USD

Add to Cart
AOD9604 5mg/10mg
AOD9604 5mg/10mg
99% HPLC · RUO

$50 - $90 USD

Add to Cart
Sermorelin 10mg
Sermorelin 10mg
99% HPLC · RUO

$90 USD

Add to Cart
NAD+ 100mg
NAD+ 100mg
99% HPLC · RUO

$55 USD

Add to Cart
Cerebrolysin 2g
Out of stock
Cerebrolysin 2g
99% HPLC · RUO

$80 USD

Add to Cart
Discover all

Who are we

Your US peptide supplier

Peptide Shop supplies research peptides manufactured in the USA by GMP certified partners. We focus on consistent purity, transparent sourcing, and fair pricing, so researchers can reorder with confidence. Trust is earned batch by batch.

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Purity by lot chart: the last eight BPC-157 lots all at or above the 99% release threshold, made in a GMP partner facility in the USA, tested by an accredited independent US lab and shipped same day with a COA

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How we qualify a batch

We run six assays on every batch, and nothing is released until all six results are on file.

  1. 01

    Sterility, USP <71>

    We culture every batch for fourteen days before inspection, because slow-growing organisms won't appear in a two-day check.

  2. 02

    Endotoxin, USP <85>

    Endotoxins survive sterilization and stay biologically active, so we screen every batch by LAL against pyrogen limits.

  3. 03

    Purity, HPLC-UV

    We measure against a ≥99% target and publish your lot's actual number without rounding it up.

  4. 04

    Identity, LC-MS

    Mass spec weighs the molecule against the sequence on the label, so a near-miss compound reads as the wrong mass.

  5. 05

    Heavy Metals, ICP-MS

    Lead, arsenic, cadmium and mercury arrive with the raw materials and are invisible to HPLC, so we run a separate instrument.

  6. 06

    Net Content

    We weigh what's in the vial, so a 10 mg vial is confirmed to hold 10 mg.

Client testimonials

Read what our clients say

Find out what our clients from all over the world say about us.

Ordering was effortless and my package was dispatched the same day. Every product came with clear documentation and the support team answered all of my questions quickly.
JHJonathan H.Verified buyer
Fast shipping and excellent packaging. Everything arrived in perfect condition.
JAJames A.Verified buyer
Great prices without compromising on quality. I’ll definitely be ordering again.
RBRuth B.Verified buyer
The certificate of analysis for each batch gives me full confidence in what I order.
MJMonica J.Verified buyer
Support team responded within the hour and helped me sort out my order.
KLKenneth L.Verified buyer

FAQ

Frequently asked questions

The details that matter before you order. Everything you need to know about our peptides, shipping and orders.

Our peptides are sent in lyophilized form and, as such, you can store them long-term, at a minimum of -20 degrees C (-4 Fahrenheit) up to several years! But, they don’t respond too well to freeze/thaw cycles, and if you engage in too many of those, peptides can lose their stability.



If you reconstitute the peptide and then store it, their storage capacity will greatly reduce. You also need to refrigerate them to -20 degrees C (-4 Fahrenheit), but they will be stable only for 3-4 months. And if you are able to drop the temperature even lower, to around -80 degrees C (-112 Fahrenheit), they will last up to one year.
As mentioned in the disclaimer on our product pages, our peptides are meant for scientific research only – in vitro and in vivo lab testing. They are not intended to be used as foods, cosmetics or drugs and using them in products intended for human use is prohibited.
Since our peptides come in lyophilized form, you will need to reconstitute them before use. Most common way of reconstituting is via bacteriostatic water, bacteriostatic NACL water or sterile water (though not as common). Prior to the reconstitution process, you should allow for the peptide to warm slowly to room temperature.
We sometimes get emails from our buyers complaining about “not getting enough peptide in their vials.” We use very precise measuring tools and we can assure you each vial contains the correct amount of peptide. The vial is large, so it might give off the impression of containing too little peptide, but the amount is correct.
95-98% purity is the usual level used for in vitro and vivo studies, so you can be sure our peptide will be suitable for any lab setting. As for that 1%, it consists of common impurities such as deletion sequences, modified sequences, acetic acid, etc. Of course, that’s not something that’s able to throw off your lab results so there is no need to worry!

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