Description
The GLP3-R 30mg bundle is the cheapest way to buy GLP3-R 30mg in quantity. Choose 2, 4 or 6 vials from the dropdown, and the price per vial drops as the count goes up. Every vial holds 30mg of freeze-dried GLP3-R (retatrutide), made in the USA, and it’s sold for laboratory research only.
GLP3-R 30mg bundle prices
- 2 vials: $344.00 (regular $400.00), about $172.00 per vial
- 4 vials: $664.00 (regular $800.00), about $166.00 per vial
- 6 vials: $972.00 (regular $1,200.00), about $162.00 per vial
A single GLP3-R 30mg vial is $200.00. At 6 vials the bundle brings that down to about $162.00 each, a saving of $228.00 over buying six singles.
What is GLP3-R (retatrutide)?
Retatrutide (LY3437943, often sold as GLP-3R) is a single peptide from Eli Lilly that acts on three receptors: GIP, GLP-1 and glucagon.
It’s still in clinical trials.
How retatrutide works
Retatrutide hits three receptors with one peptide: GIP, GLP-1 and glucagon. The first two are incretins that boost glucose-dependent insulin release and, in GLP-1’s case, curb appetite and slow stomach emptying.
The glucagon part is the unusual bit. Glucagon raises energy expenditure and pushes the liver to burn fat, so pairing it with the incretins is meant to work on both sides of energy balance. That’s the main reason researchers compare it with the dual and single agonists.
Retatrutide research
Jastreboff and colleagues reported in the New England Journal of Medicine (2023) a mean weight loss of up to 24% at 48 weeks in a phase 2 trial.
Phase 3 trials are under way.
For the trial papers, start with this PubMed search for retatrutide.
GLP3-R 30mg bundle specifications
- Compound: GLP3-R (retatrutide)
- Molecular formula: C221H342N46O68
- Amount: 30mg per vial
- Quantity: 2, 4 or 6 vials
- Vial size: 3mL glass vial
- Form: lyophilized (freeze-dried) powder
- Purity: 99% or higher by HPLC
- Made in: USA
- SKU: CP-GLP3R-30-BUNDLE
- Use: laboratory research only
GLP3-R 30mg purity and lab testing
GLP3-R 30mg is made in the USA, and every batch goes to an independent U.S. laboratory before it’s sold. The lab confirms identity, measures the content and checks purity by HPLC. Our standard is 99% or higher.
Scroll through the photos at the top of the page and you’ll find the current batch’s certificate of analysis. We post the actual report, so you can check the figures yourself.
Purity isn’t the whole story, so batches are screened for endotoxins, heavy metals and sterility too. Write the batch number from the label into your notes so you can match results to the paperwork later.
Reconstituting each GLP3-R 30mg vial
The amount of liquid you add sets the concentration. For a vial holding 30mg:
- 2mL of bacteriostatic water gives 15mg/mL
- 3mL of bacteriostatic water gives 10mg/mL
Go with whichever number is easiest to work with in your protocol, and label the vial with the concentration and the date you mixed it. The vial itself holds 3mL, so that’s the upper limit.
Most labs use sterile bacteriostatic water; we sell it in 10mL and 30mL vials. Warm the sealed vial to room temperature, add the water slowly along the glass wall and swirl gently until it’s clear. Never shake it.
Storing the GLP3-R 30mg bundle vials
Only mix one vial at a time. Keep the rest sealed in the freezer at -20°C, where the dry powder keeps far longer than a mixed solution. A mixed vial goes in the fridge and should be used within about four weeks. Our 6 vial container holds a full 6-vial bundle.
Other GLP3-R sizes
See all our GLP-1 peptides and peptide bundles.
Common questions about GLP3-R 30mg bundle
Is there a certificate of analysis for GLP3-R 30mg bundle?
Yes. The current batch’s COA is in the image gallery on this page.
How many vials can I choose?
2, 4 or 6. Pick the quantity in the dropdown above the cart button.
Are the vials the same as the single GLP3-R 30mg?
Yes. Same product, same 30mg per vial, just priced lower per vial.
Where is it made?
In the USA. We only sell U.S.-made research products, and each batch is tested by a U.S. lab.
What is GLP3-R?
GLP3-R is our catalog name for retatrutide. The vial holds retatrutide as freeze-dried powder.
Order the GLP3-R 30mg bundle
The GLP3-R 30mg bundle starts at $344.00 for 2 vials and is in stock. Pick your quantity, add it to the cart and check out in a couple of minutes.
Need something else for the same study? See our weight loss peptides and full research peptide range.
For laboratory research use only. Not for human or veterinary use. These statements have not been evaluated by the FDA.







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