Retatrutide (GLP-3)
- Purity
- ≥ 99%
- Size
- 10 / 20mg
- Form
- Lyophilized
Pharmaceutical-grade peptides and blends for laboratory research.
For research use only. Not for human consumption.
Lumen Research supplies lyophilized research peptides and peptide blends from US inventory, with the stated purity on every listing. Each compound below is filed under the area it is studied in, with a research guide covering what it is and what the published work has examined.
Peptides studied in tendon, skin, gut and wound-healing models.
Incretin receptor agonists studied in weight and glucose regulation.
Compounds studied for their effect on growth hormone release.
Compounds studied in mitochondrial function and cellular metabolism.
Peptides that act on the melanocortin receptor family.
Every compound is handled to the same standard, from receipt to dispatch.
Produced in dedicated facilities using established purification methods.
Purity is listed on every compound, so you know exactly what you are ordering.
Orders placed before 12PM ET ship the same business day.
Orders placed before 12:00 PM ET on a business day are dispatched the same day, Monday through Saturday, excluding holidays. Anything after that cut-off goes out the next business day. Standard shipping anywhere in the United States is a $15 flat rate, and orders over $200 ship free.
Credit and debit card, Apple Pay, Google Pay, Zelle and Cash App. If you choose the card option, your order is placed first and a secure payment link appears on your order confirmation and in your order email — that link also accepts Apple Pay and Google Pay. Zelle orders receive a 5% discount, applied automatically at checkout.
Yes. We ship to every state in the United States from our own inventory in Texas. We do not ship internationally.
Email support@lumenresearch.us within 7 days of delivery and we will review it and put it right, which normally means sending a replacement. Please note that outside of that, all sales are final — we do not accept returns, because we cannot verify how a compound has been stored once it has left us.
Yes. Inside the San Antonio city limits we deliver to your door on Tuesdays and Thursdays from 5 PM to 9 PM and on Saturdays from 12 PM to 5 PM, and meeting us to collect an order is free. Surrounding areas within roughly 30 miles are covered too — enter your ZIP at checkout and the available options appear.
US-based support, usually replying the same business day.