Longevity Peptides Review: Lot-Numbered COAs, Unnamed Lab and Arizona Shipping

Longevity Peptides is the online store of LGPEP LLC, which gives a mailing address in Queen Creek, Arizona, and its terms are governed by Arizona law. It sells freeze-dried research peptides and blends in vials, and every product page states that the material is for laboratory or in-vitro research only and not for human or veterinary use.

We looked at the homepage, the shop, two product pages, the COA page, the FAQ, the shipping and return policies, the terms, the contact page and a page comparing its prices with telehealth programs. The store's strength is lot-level purity data for nearly every vial; its gaps are an unnamed lab and no identity testing.

What Longevity Peptides sells

The shop listed about 34 research compounds plus a 30 mL reconstitution solution. The range covers BPC-157, TB-500, GHK-Cu, KPV, Thymosin Alpha-1, Semax, Selank, DSIP, MOTS-c, NAD+, several multi-peptide blends and a group of GLP-1 class compounds sold under short "LP" codes. Regular prices ran from about $30 to $195.

No founding year or owner names are given. Every peptide is listed as a vial, and no sprays, capsules or pens appeared in the catalog.

Lot-numbered certificates without a named lab

A central COA page lists 33 certificates, and each product page repeats the matching lot number, report date and an assayed purity figure, with a link to the certificate image. The BPC-157 lot DPS-1676478, for example, is dated August 2026 at about 99.41%, and most listed lots fall between about 99.2% and 99.7%. The page tells buyers to match the lot on the certificate to the lot on the vial.

The gaps are worth knowing:

• No page names the lab that issued the reports, though the site calls its products third-party tested.
• Only HPLC purity is cited; no mass spec identity result is mentioned.
• SNAP-8 and Dihexa have no listed report, Oxytocin and VIP show no purity figure, and one CJC-1295 lot is dated March 2025.
• The certificate viewer did not load the images when we looked.

Labeling and purchase checks

Product pages describe each item only as a research peptide or reference material, with a short spec table and a research-only notice, and the footer adds that the company is not a compounding pharmacy. We saw no dosing or administration content. Two areas fall short of strict research-use labeling, though: the FAQ carries general health and fitness claims about peptides, and a separate page compares the store's vial prices with the monthly cost of telehealth programs.

No age gate or checkout checkbox appeared. The terms require buyers to be 21 or older and to certify that they are buying for lawful research.

Ordering, shipping, refunds and support

Orders ship from the company's Arizona facility on business days. The shipping policy gives a 2 PM PST cutoff for standard and 2-day orders and a noon cutoff for overnight, with about 3 to 5 business days in transit for standard; the contact page gives a noon same-day cutoff instead. Carriers, rates and cold packs are not described. Payment methods are not listed, though a checkout note refers to card statements.

The return policy accepts unopened, unused items within 14 days of delivery. Buyers email support for an RMA number, returns are inspected in about 2 to 3 business days, and approved refunds go to the original payment method within 7 to 10 business days. Return postage is the buyer's unless the store sent a wrong or defective item. The terms, by contrast, call all sales final unless stated otherwise. Support is by email and a contact form, with a stated reply within one business day; there is no phone number.

Verdict: who Longevity Peptides suits

Longevity Peptides suits labs that want a broad vial catalog with a lot number and purity figure they can match to each vial, backed by clearly written US shipping and return terms. It is a weaker fit for labs that need a named independent lab or mass spec identity data.

Before ordering:

• Ask support which lab issued the certificate for your lot, and request the full report.
• Check that the lot on your vial matches the COA listing.
• Ask whether identity testing is available for your batch.