ARC Peptides USA Review: Lot-Level COA Index, Request-Only Reports and Refund Terms

ARC Peptides USA is an online seller of freeze-dried research peptides based in Norman, Oklahoma. The store trades under the ARC name, while its copyright line and Instagram account use the name Ascend Research Compounds. It ships within the United States only.

We looked at the homepage, the shop, the BPC-157 product page, the certificates page, the refund policy, the terms, the contact page and the article library. The most useful feature is a public index of lot numbers and HPLC figures. The main gaps are an unnamed lab, request-only certificates and product wording that drifts from strict research-use labeling.

Who ARC Peptides USA is and what the catalog covers

The site describes the business as US owned, tested and shipped, and the contact page gives Norman, Oklahoma as its location. No street address, phone number, founding year or owner names are published, and the terms do not name the state of registration.

The shop lists 31 products. Most are single peptides sold in one to three sizes, alongside several multi-peptide blends, two GLP-1 class compounds, NAD+, glutathione and a 10 mL bacteriostatic water at $10. Peptide prices run from about $25 to $160. Each listing shows one starting price, so the cost of larger sizes appears only after a size is chosen. An apparel page sits in the main menu, and the refund policy covers worn or washed clothing.

COA index: lot numbers, HPLC figures and request-only reports

The certificates page works as an index rather than a library of documents. For each product it shows:

• A product SKU and a lot number, such as lot 24-118 for BPC-157.
• The date the lot was tested.
• An HPLC purity figure, for example 99.1% for that BPC-157 lot.
• A note that identity was confirmed by LC-MS.
• A button to request the full certificate.

Of the 31 listings, 29 carry a lot number and 28 show a numeric purity figure. Two blends had blank lot and purity fields when we looked, and the water lists a USP grade instead of a percentage.

What is missing is the evidence behind the summary. No testing lab is named anywhere on the site, the full reports are not posted, and no observed or expected mass values appear, so the LC-MS claim cannot be checked from the public pages. The product page repeats the lot number and offers a link to request that lot's certificate.

Before ordering, request the certificate for the exact lot listed, check which lab issued it, and confirm that the report includes mass spec data and a lot number matching the vial.

Labeling, product wording and purchase checks

Research-use notices appear on product pages, in the footer and in the terms, which bar any use in people or animals and ask buyers to confirm they are qualified researchers.

The product wording is less careful. Shop listings carry short taglines, and several of them describe what a compound or blend is for in outcome-focused terms. The article library summarizes published studies, and one article on a GLP-1 class compound reports clinical trial designs and outcomes in detail. The BPC-157 page also carries a use-oriented cross-sell heading for a blend. This content falls short of strict research-use labeling.

Age checks are light. The terms set a minimum age of 18, and the email sign-up pop-up includes an 18+ and research-use checkbox, but no gate or checkbox appeared before adding items to the cart.

Ordering, payment and shipping

The refund policy and terms point to cards, Venmo and Cash App as payment routes. Orders paid by Venmo or Cash App are held until payment is confirmed by hand.

The site states that orders ship within one business day of a completed order. Shipping is domestic only, and international delivery is described as under evaluation. There is no standalone shipping policy: the terms say costs and timelines are shown at checkout, and that risk passes to the buyer once the parcel is handed to the carrier. Carriers, cold packs and delivery estimates are not described.

For storage, the site advises keeping freeze-dried material frozen and away from light.

Refunds, cancellations and support

The refund page is clear. Change-of-mind returns are not accepted. Damaged, defective or wrong items must be reported within 7 days of delivery with the order number and photos, and the remedy is a replacement or refund at the seller's discretion. Orders can be cancelled or changed by email only before they ship.

Approved refunds go back to the original payment method, typically within 5 to 7 business days, and store credit used on an order is restored. Original shipping costs are refunded only when the seller made the error. The policy does not say what happens to a parcel lost in transit, and the terms add that the seller is not responsible for carrier delays.

Support is by email and a contact form. No phone number, hours or reply time are given.

Verdict: who ARC Peptides USA suits and what to check first

ARC Peptides USA suits US labs that want a mid-sized catalog with lot numbers and purity figures visible before purchase, and that are willing to request full certificates. It is a weaker fit for labs that need a named lab, posted reports and shown mass spec data up front, or written terms for lost parcels.

Before ordering:

• Request the certificate for the listed lot and confirm the issuing lab and report with that lab.
• Check that the lot number on the vial matches the index.
• Ask how lost parcels are handled, since the policy does not say.
• Inspect deliveries promptly to stay inside the 7-day claim window.