What is GLP-3 RT? +
GLP-3 RT is Next Level Labs' catalog designation for retatrutide, a synthetic triple-agonist peptide studied at the GLP-1, GIP and glucagon receptors. Retatrutide is an investigational compound in third-party Phase 3 clinical research and is not approved by the FDA. Next Level Labs supplies it as a lyophilized reference material for in vitro laboratory research only, not for human or veterinary use.
Is GLP-3 RT retatrutide? +
Yes. GLP-3 RT is the name this catalog uses for retatrutide. The identity is confirmed by mass spectrometry on every lot and the compound is named on the signed certificate of analysis, so you can match the lot on your vial to the report before you order. It is sold for in vitro research use only.
Is GLP-3 RT third-party tested? +
Yes. Every GLP-3 RT lot runs a 7-point QC panel at an independent third-party US lab: identity, purity by HPLC, quantity, sterility, endotoxins, heavy metals by ICP-MS and a fentanyl screen, at 99.52% purity. The signed certificate of analysis for the exact lot you receive is published on the lab reports page and available before you order.
How do I verify my GLP-3 RT is legit? +
Match the lot number printed on your vial to the certificate of analysis published on the Next Level Labs lab reports page. It names the lab, batch, purity, and identity confirmation for that exact lot, so a real report always maps to your specific vial.
Is GLP-3 RT for human use? +
GLP-3 RT is a research compound for in vitro laboratory use only, not for human or veterinary use. Nothing here is medical advice and no statement has been evaluated by the FDA.
How fast does GLP-3 RT ship? +
Orders paid before 5pm ET on a business day ship the same day via UPS with tracking, in plain unbranded packaging. After that, the next business day. UPS 2-Day Air is a flat $9.99 and free over $200, with Next Day Air available at checkout. Continental US only.
How much does Retatrutide cost? +
Pricing for every vial size is listed on this page next to the size selector. Next Level Labs prices per vial with no membership or subscription required. UPS 2-Day Air is a flat $9.99 and free over $200, with Next Day Air available at checkout.
Where can I buy Retatrutide in the USA? +
Next Level Labs ships Retatrutide direct from the United States. Orders paid before 5pm ET on a business day dispatch the same day, tracked and in plain unbranded packaging. Continental US only. There is no walk-in or retail location, so orders are placed on this page.
Is Next Level Labs a legit place to buy Retatrutide? +
Every Retatrutide lot is tested by an independent ISO/IEC 17025 laboratory and the signed certificate of analysis is published before you order. Match the lot number printed on your vial to the report on the lab reports page. If the lot on the glass is not published there, do not use it.
