303 Peptides

On certificates: a laboratory is named in public, but no certificate can be read without an account. The wall is not a catalog gate. It covers the site: https://303peptides.com/ itself, /coas/, /shop/ and every /product/ URL I tried returned HTTP 200 at https://303peptides.com/my-account/?redirect_to=..., the front page included. The one path that served directly was the refund policy. So the COAs page exists in the navigation but its contents are UNVERIFIED. I did not create an account. What the public login page does state, reproduced with one verb normalized to "using": "Compounds are independently tested by Janoshik using HPLC for purity and identity. Certificates of analysis are available for reference." Janoshik Analytical is independently reachable at janoshik.com and runs a public verification portal, which I used successfully today on a different vendor's report, so the named lab is real and its documents are checkable in principle. But no lot number, no purity figure, no analysis date and no certificate document is visible to a visitor here, and I have NOT verified that any 303 Peptides batch resolves in Janoshik's register. The site publishes no purity percentage of any kind on its public pages, which means there is also no unqualified purity claim to flag.

On prices and policies: the catalog is gated, but the login page itself renders a "Popular Products" panel and a "You may also like" panel with live prices and stock states, which is where the figures below come from. Retatrutide is sold as "303-3RT": 10mg $125.00 (in stock, with an add-to-cart control), 20mg $185.00 (marked out of stock), 40mg $284.00 (selectable, carrying no out-of-stock marker). Stock state is a volatile field and it moved between reads, while all three prices held. The compound identity is confirmed by the vendor's own routing rather than by inference: requesting https://303peptides.com/product/retatrutide-10mg/ redirects to the login wall with redirect_to set to /product/303-3rt-10mg/, and the site's own search panel lists "Retatrutide" under Trending Search alongside "GLP-2 Tirzepatide". Other recorded prices: SS-31 50 MG $150.00, Epithalon 50mg $99.00, PNC-27 30mg $290.00, 9-Me-BC 50mg x 50 Capsules $100.00, Bacteriostatic Water 10mL $17.00 marked down to $15.00. A sitewide banner offers coupon code 303ME for 10 percent off a first order. The Refund and Return Policy is public, dated 05/24/2026, and is the most detailed of the eight sites in this batch: all sales final once shipped; damage claims within 7 days with photographs of outer packaging, inner packaging and product, processed through the carrier, typically 10 to 15 business days; lost-shipment investigations opened after 10 business days of no tracking movement, typically 7 to 14 business days; wrong items replaced with a prepaid return label within 7 days; refunds to the original payment method or store credit that does not expire; cancellation free before dispatch, with same-day shipping stated as "orders placed before 12:00 PM MST"; customs duties on international orders placed on the buyer; and a numbered chargeback section asking customers to contact the vendor first and stating that chargebacks filed without doing so "may be contested with the card issuer using the customer's signed acknowledgment of this policy at the time of purchase". The carriers are named on a public page, in the refund policy's damage-claim clause: "Damage claims are processed through the shipping carrier (USPS, UPS, or FedEx, depending on the service used)." No shipping cost, free-shipping threshold or delivery estimate is published on any public page, and those are UNVERIFIED. No payment brand mark appears on any public page; the refund policy refers to "credit or debit cards", so cards are implied but the accepted set is UNVERIFIED and I did not transact. Research-use-only language is present, extensive and unusually specific: a full RUO paragraph on the login page, a footer line on every page, and two disclaimers rarely seen in this category, that the company "is not a compounding pharmacy or chemical compounding facility as defined under Section 503A of the Federal Food, Drug, and Cosmetic Act, and is not an outsourcing facility as defined under Section 503B", and that it "does not provide instructions, protocols, or guidance regarding reconstitution, dilution, dosing, administration, timing, or any other human-use application, and requests for such information will be declined."

Worth noting, and most of it cuts in the vendor's favor. The registration wall is the central fact, and it reaches the front page: a buyer cannot read the front page, the catalog, any product page, or a single certificate before creating an account, and the vendor states plainly why, that registration "allows us to record purchaser acknowledgment of research-use restrictions, maintain order and batch records, and confirm that purchasers meet the eligibility requirements described in our terms. It is a condition of purchase, not an optional step." That is a documented rationale rather than a marketing gate, but the practical effect is the same as the other gated sites in the ledger: no price comparison, no certificate inspection, and no refund terms visible before signing up, except that here the refund policy is in fact public. On the copy itself I found no unqualified purity claim, no pharmaceutical manufacturing grade language, no countdown or scarcity mechanic, and no human-use, dosing or outcome language on any public page. Reference pricing is present in one place: the struck-through anchor on the Bacteriostatic Water 10mL tile recorded above. The only quantitative claim anywhere public is the Janoshik and HPLC sentence quoted above. UNVERIFIED for this vendor: every certificate, every lot number, every purity figure, the full catalog and its size, shipping costs and delivery estimates, and the accepted payment methods.