Research peptides with lab reports
99.67% HPLCRetatrutide
Retatrutide (LY3437943) is an investigational agonist of three receptors: GIP, GLP-1 and glucagon. Every format we stock is listed here, from lyophilized powder in sealed vials to pre-filled pens and a ready-made nasal spray, each tested by an independent laboratory before it ships and sent with free tracked delivery. For laboratory research use only.
Shop Retatrutide
99.67% HPLC
Tested before shipmentRetatrutide pen
from$87.99
Tested before shipmentRetatrutide nasal spray
$149.99
Retatrutide with independent lab testing
Every batch is tested by an independent laboratory before it's sold, and each published report is on its product page, so you can check identity and purity before you order. Orders ship free with tracked delivery and a tracking page you can follow.
Why choose Peptora?
We publish the lab report for each batch on its product page. Multi-vial savings apply automatically in the cart, you earn reward points on every order, and sealed items can be returned within 14 days. Questions? Message us on WhatsApp, open 24/7.
Research peptides FAQs
What is a lab report, and where do I find it?
Every batch is tested by an independent laboratory before it's sold, for identity (LC-MS) and purity (HPLC), and for endotoxins, sterility and heavy metals where listed. The report for the current batch is on each product page, and every published report is on the Lab reports page.
What purity can I expect?
Each product page shows the HPLC purity measured for the current batch, with the full report to download, so you can check the figure for the exact batch you receive.
How long does delivery take?
InPost locker: usually 4-5 business days; Evri locker: usually 4-5 business days; DPD home delivery: usually 3-5 business days. United States: usually 5-8 business days. Every option is free and tracked; see Shipping.
How should I store peptides when they arrive?
Keep lyophilized (freeze-dried) peptides in their sealed vials in a freezer at about -20 °C, away from light and moisture. A few days at room temperature in transit is normal for lyophilized material. The storage notes on each product page give the details.