How to evaluate peptide vendors. COA documentation, price transparency, shipping standards and what separates research-grade from questionable products.
We look for a batch-level certificate of analysis published by the merchant.
Purity percentage and milligrams per vial as stated on the product page.
Clear research-use labeling, lot numbers and storage instructions.
Vials compared on price per milligram, not on sticker price.
BPC-157 lyophilized vial from Peptide God, priced at $34.95.
BPC-157 10mg vial from Real Peptides with published lot COA and HPLC verification.
BPC-157 lyophilized vial from Peptide God, priced at $34.95.
Ipamorelin growth hormone secretagogue from Peptide God at $39.95.
Epithalon (Epitalon) tetrapeptide from Peptide God at $29.95.
Tesamorelin 10mg vial from Real Peptides with independent HPLC testing and published COA.
| Product | Price | Brand | Form | Status | Price |
|---|---|---|---|---|---|
| Peptide God BPC-157 | $34.95 | Peptide God | Lyophilized vial | In stock | $34.95 |
| Real Peptides BPC-157 Peptide 10mg | $43.20 | Real Peptides | - | - | $43.20 |
| Peptide God BPC-157 + TB500 | $34.95 | Peptide God | Lyophilized vial | In stock | $59.95 |
| Peptide God Ipamorelin | $39.95 | Peptide God | Lyophilized vial | - | $39.95 |
| Peptide God Epithalon | $29.95 | Peptide God | Lyophilized vial | - | $29.95 |
| Real Peptides Tesamorelin Peptide 10mg | $45.60 | Real Peptides | - | - | $45.60 |
The research peptide marketplace has a larger number of manufacturers and products as well as greater price variation than it did two years ago. This manual explains what to take into consideration before making a purchase, compares two injectable vendors and three topical brands tracked by us, and analyzes prices in various categories of the directory.
A Certificate of Analysis (COA) is a document provided by an impartial laboratory that proves the identity and purity of a specific peptide lot. The main tests conducted in the COA process are HPLC (high-performance liquid chromatography) for purity percentage and mass spectroscopy to confirm molecular weight. A reputable vendor generates lot-specific COAs for every product which means that the COA matches the batch number of the vial instead of being a generic test result from another lot. Real Peptides provides lot-specific COAs in every product description. PeptideGod currently does not disclose COAs in its product descriptions as of the time of this review.
A $35 vial and a $44 vial can't be compared until both the vials mention the same amount of peptide in them. You can find the price per milligram by dividing the total price of the vial by the labeled milligram content. For instance, a vial priced at $34.95 that contains 10 mg of BPC-157 will have a rate of $3.50 per milligram. Similarly, a vial costing $43.95 which again has 10 mg of the compound will have a price of $4.40 for each milligram. In case the product's page does not mention the amount of vial in milligrams, you can consider this as a negative point.
Peptide vials that have been lyophilized should be shipped using insulated containers and cold packs in order to sustain their temperature during transport. All the suppliers mentioned in this directory ship from inside the US. Real Peptides ships via USPS Priority and offers cold chain shipping. PeptideGod ships from its US warehouse and uses standard insulated containers for its shipments. Domestic shipping generally takes 2 to 5 business days to complete, while international transport usually takes longer and could experience complications at customs.
| Factor | PeptideGod | Real Peptides |
|---|---|---|
| Product count | 11 products tracked | 8 products tracked |
| COA policy | Not displayed on product pages | Lot-specific COA published |
| Price range | $29.95 - $59.95 | $39.95 - $84.00 |
| Shipping | US warehouse, insulated | USPS priority, cold chain |
| Payment | Crypto, card | Card, Awin checkout |
| Catalog breadth | Recovery, GH, longevity, cognitive | Recovery, GH, longevity, metabolic |
The recovery category addresses compounds that have been taken into consideration in animal research. BPC-157 occupies the top position on the list for most studied recovery peptide with more than 100 studies written on it. TB-500, another component released by Thymosin Beta-4, works through cell migration and healing mechanisms. PeptideGod provides BPC-157, TB-500, and BPC-157+TB-500 combination. Real Peptides provides BPC-157 in a 10 mg vial and COA is published.
The growth hormone category includes compounds that stimulate pituitary growth hormone release. Ipamorelin is a selective GH secretagogue with Phase II clinical data. Tesamorelin is an FDA-approved GHRH analogue (for HIV-associated lipodystrophy). PeptideGod offers Ipamorelin and AOD 9604. Real Peptides offers Tesamorelin and a Tesamorelin-Ipamorelin stack.
The longevity category discusses substances focusing on cellular aging, mitochondrial activity as well as metabolism. Epithalon is a tetrapeptide that is investigated for the induction of telomerase activity. Meanwhile, MOTS-c is a peptide that has been tested for its impact on exercise performance in mice. PeptideGod features Epithalon and MOTS-c in their product line. Real Peptides has MOTS-c, NAD+, and SLU-PP-332 in their offer.
The copper peptide category describes GHK-Cu skincare products from topical brands. Neurogan has released a cream (with 1200 mg GHK-Cu, 2%) and a hair serum (with 2400 mg GHK-Cu, 4%). Scantifix also has a separate GHK-Cu topical available. DoctorDerm has a complex with a copper peptide included as well. All these products are cosmetic formulations, not injectable peptides.
The vendor is evaluated based on whether it publishes COAs that contain HPLC and mass spectrometry results. Vendors that publish COAs obtain higher Testing scores. Vendors which do not make COAs available receive a lower rating on this point. We do not conduct independent verification of the results received at the laboratory but we check the existence of the document that includes the results matching the listing in the vendor's product catalog.
We examine the vendor’s product page to see if a clear quantity of peptide (in milligrams) is provided, along with relevant information such as cost and shipping charges. If there are any hidden fees or incomplete vials, we will highlight them in our reviews. We also determine the price charged for each milligram of peptide.
Currently, all two suppliers that we are following are originating their products from the US stock, where products are shipped with standard delivery that takes approximately 2-5 days. Every time we do our review, we verify the availability of the stock in order to inform users when products are out of stock. Cold chain shipping is assumed for the products (using insulated packaging for the lyophilized vials). If some supplier ships their products without using insulated shipping, then he is losing points for shipping.
Research peptides sold as "for research use only" are legal to purchase in the US. They are not FDA-approved drugs and cannot be marketed for human therapeutic use. The legal landscape around compounding pharmacies and certain peptides has shifted since FDA guidance changes in 2023-2024, so buyers should verify current rules for specific compounds.
The PeptideGod company is open to payments in cryptocurrency as well as payments made using bank cards. Real Peptides only accepts credit/debit card payments through its collaboration with Awin. It is important to understand that there can be several major difficulties related to payment processing of research chemicals, while for some payment processors the classification of peptide purchases is a matter of concern, this is why the use of cryptocurrency has gained more popularity among traders.
The vials containing lyophilized peptides are sent in insulated vet pack containers along with ice gel packs to keep the temperature regulated. Both the vendors present in this directory ship from the United States and the orders may take 2 to upto 5 business days to be delivered. Topical copper peptide solutions from different brands (Neurogan, Scantifix, DoctorDerm) are shipped as regular cosmetic goods without any special transport conditions.
While products that carry the labels "for research use only" or "not for human consumption" may still be sold, they have not received FDA approval for use in humans. This labeling indicates that the substance in question is classified as a research chemical rather than a medical compound.
