Quick take
NextGen Peptides keeps a public library of 189 lot-linked certificates, mostly from ILS Laboratories, with HPLC purity and PDF reports, though mass spec is claimed rather than shown and some records are messy. It sells liquid sprays, capsules, oral droppers, strips and a cream alongside its vials, which doesn't fit research-use-only supply. Shipping and refund terms are detailed but strict.
The seven checks
| Independent lab testing | Yes | Most certificates name ILS Laboratories and link a PDF report; one names Janoshik. |
|---|---|---|
| Batch-specific COAs | Yes | The library lists 189 lot-linked certificates, and the BPC-157 page shows current lot bpc10-10, assayed 2026-09-23. |
| Identity confirmed by mass spec | Partly | The about page says identity is confirmed by mass spec, but library entries show HPLC purity only, with identity fields often pending. |
| Research-use labeling | No | Sells liquid sprays, capsules, oral droppers, strips and a cream alongside vials, and one listing uses a consumer-style name. |
| Age and use confirmation | Yes | An entry screen requires confirming 21+ and research-only purchase, and every order needs an account. |
| Clear shipping and refund terms | Yes | Separate shipping and refund pages set dispatch timing, carrier, claim windows and refund timing. |
| Business transparency | Partly | Two support emails, an SMS line, a Carlsbad, California origin and terms are published, but no street address or legal entity. |
NextGen Peptides, also written NG Peptide, is a US research peptide store that gives Carlsbad, California, as its origin and says it has operated since 2022. It sells freeze-dried peptides in vials alongside a wide range of other formats.
We looked at the homepage, the shop listing, three product pages, the certificate library, the FAQ, the about page and the shipping and refund policies. The certificate library is large and public, while some records and listings are untidy.
What NextGen Peptides sells
The shop says it carries about 100 compounds. Vial products include BPC-157, GHK-Cu, AHK-Cu, Tesamorelin, MOTS-C, ARA-290, DSIP, Epithalon, several blends and several GLP-1 class compounds, with single vials from about $20 to $170 and multi-vial packs.
The catalog also has categories for liquid sprays, capsules, oral droppers, strips, creams and haircare. These are self-administration formats, and selling them next to research vials falls short of research-use-only supply. One sold-out listing also uses a consumer-style product name that doesn't suit a research catalog.
Listings are not always consistent. Some items show a $0.00 price, and a few prices differ between the homepage and the catalog, so confirm the price in the cart.
The certificate library and lot matching
The certificate library holds 189 records behind a short researcher confirmation. Each record gives a product, batch number, test date, lab, HPLC purity and a link to a PDF report hosted on the store's own site. Most name ILS Laboratories; one names Janoshik. Product pages repeat the records for that compound. For example:
- BPC-157 10 mg: current lot bpc10-10, assayed 2026-09-23, 99.73% purity, ILS Laboratories.
- GLP-3 50 mg: lot RT50-02, tested 18 Aug 2026, 99.59% purity.
There are gaps. The about page says identity is confirmed by mass spec and mentions heavy metal and other screens, but the library shows HPLC purity only, with identity often marked pending. Some batch numbers repeat across products, a few lab fields hold numbers or dates instead of a lab name, and some records show "Awaiting file."
Before ordering, match the lot on your vial to its PDF and confirm the report with ILS Laboratories.
Labeling and purchase checks
Research-use notices are prominent. An entry screen asks visitors to confirm they are 21 or older and buying for in vitro or laboratory research, not for human or veterinary use, and every order needs an account. The FAQ states the store gives no usage or administration guidance, and partner rules ban health claims.
Some product pages describe research focus areas for a compound, which goes past strict research-use labeling, on top of the non-vial formats noted above.
Shipping, refunds and support
Most orders dispatch within 36 hours. US residential orders ship by FedEx 2-Day Air, as freeze-dried powder at ambient temperature with no ice or gel packs, and there is no international shipping. Risk passes to the buyer at carrier handoff unless optional shipment protection is bought at checkout.
All sales are final, with set reporting windows:
- Visible transit damage within 48 hours, with photos.
- Missing or wrong items within 5 days.
- Delivered but not received within 7 days, covered only with shipment protection.
- Defects in unopened product within 14 days.
Opened, mixed or altered product is not eligible. Approved refunds go back to the original payment method within about five business days. Support runs through two email addresses and an SMS-only line; no street address or legal entity is published.
Verdict: who NextGen Peptides suits
NextGen Peptides suits US labs that want a large, public library of lot-linked reports from a named lab and fast FedEx shipping. It is a weaker fit for labs that need mass spec shown on every report, cold-chain shipping, flexible returns, or a supplier that sells research vials only.
Before ordering, match the lot number on your vial to its PDF, check the lab named on that record, and confirm the result with the lab.
Catalog examples
A sample of listed research products and sizes when we checked. Prices change often; the supplier's site is the source of truth.
| Product | Size | Listed price |
|---|---|---|
| BPC-157 | 10 mg vial | about $30 |
| GHK-Cu | 50 mg vial | about $20 |
| AHK-Cu | 100 mg vial | about $30 |
| Tesamorelin | 10 mg vial | about $50 |
| MOTS-C | 40 mg vial | about $80 |
What holds up
- Public library of 189 lot-linked certificates, most naming ILS Laboratories with a PDF report
- Product pages list current and earlier lots with assay dates and purity
- Detailed shipping and refund pages with specific claim windows
- Most orders dispatch within 36 hours by FedEx 2-Day Air
What to watch
- Sells liquid sprays, capsules, oral droppers, strips and a cream alongside vials, which doesn't fit research-use-only supply
- Mass spec claimed but not shown, and some records repeat batch numbers or carry odd lab entries
- Final-sale terms, no cold packs, and lost parcels covered only with paid shipment protection
Questions
Is NextGen Peptides legit?
NextGen Peptides publishes a large library of lot-linked reports, mostly from ILS Laboratories, along with detailed shipping and refund terms, but no street address or legal entity. No outside reviewer can vouch for a single order, so match the lot number on your vial to its report and confirm the report with the lab.
Which lab tests NextGen Peptides products?
Most certificates in the library name ILS Laboratories, and one names Janoshik. The reports show HPLC purity; mass spec is claimed on the about page but not shown in the library.
Does NextGen Peptides ship with cold packs?
No. Products ship as freeze-dried powder at ambient temperature by FedEx 2-Day Air within the US, and transit temperature issues are not covered by the refund policy.
What is the NextGen Peptides refund policy?
Sales are final except for verified fulfillment errors, transit damage reported within 48 hours, missing items within 5 days and unopened defects within 14 days. Lost or stolen parcels are covered only if shipment protection was bought.
For laboratory research only. This file reviews a supplier's testing, paperwork and policies. It is not a recommendation to use any product in people or animals, and it contains no dosing or medical advice.
Compare with
| Supplier | Score | Independent testing | Batch COAs | Identity by mass spec | Ships from | Supplier file |
|---|---|---|---|---|---|---|
| Alpha Peptidesalpha-peptides.com | 3.6/5 | Partly | Yes | Partly | United States | Read file |
| American Peptidesamericanpeptides.us | 3.6/5 | Partly | Yes | Partly | United States | Read file |
| Kylo Peptideskylopeptides.com | 3.6/5 | Yes | Partly | Partly | United States | Read file |