Retatrutide peptide from Peptara Labs (peptaralabs.io): a 20mg vial of lyophilized retatrutide. Lot RETA-260512-A tested at 99.18% purity by HPLC; $205.00 a vial. Below: batch facts, what the published Retatrutide research describes, the price per mg at each quantity and how to check your vial.
Order Retatrutide: https://www.peptaralabs.io/retatrutide
Certificates of analysis: https://www.peptaralabs.io/coa
Sold for laboratory research use only, not for human consumption.
Batch facts for the Retatrutide 20mg vial
Lot RETA-260512-A, tested June 2026 by Titreon Analytical: 99.18% purity by HPLC; identity confirmed by LC-MS, measured mass 4731.4 Da; net content 20.41 mg in a 20mg vial; certificate COA-2026-6928.
What the published Retatrutide research describes
What it is: An investigational single peptide that activates the GIP, GLP-1 and glucagon receptors together, developed as LY3437943 (Coskun et al., Lancet 2022, PMID 36354040 https://pubmed.ncbi.nlm.nih.gov/36354040/ ).
Phase 2 obesity trial: In the published 48-week phase 2 trial, the highest arm reached a mean body-weight reduction of up to about 24.2 percent, against about 2.1 percent on placebo (Jastreboff et al., N Engl J Med 2023, PMID 37366315 https://pubmed.ncbi.nlm.nih.gov/37366315/ ).
Not a GLP-3: Searches often call retatrutide a GLP-3, but there is no GLP-3 receptor; the label is shorthand for its three-receptor design.
Status: Retatrutide is investigational and not approved anywhere.
These describe what published studies measured, not a Retatrutide protocol or a dose for any person.
Retatrutide price per vial and per mg
1 vial: $205.00 each, $10.25 per mg
3 vials: $166.05 each, $8.30 per mg, $116.85 saved against 3 single vials
5 vials: $147.60 each, $7.38 per mg, $287.00 saved against 5 single vials
10 vials: $123.00 each, $6.15 per mg, $820.00 saved against 10 single vials
Shipping for Retatrutide: Ships free to the US in 2 to 3 days from the US warehouse when every item in the order ships from there; same day in Ho Chi Minh City and 1 to 3 days elsewhere in Vietnam, free.
How to check a Retatrutide vial
Match the lot number on your order to RETA-260512-A on the certificates page; identity by LC-MS says the compound is Retatrutide, while the purity figure alone only says the sample is mostly one compound.
Retatrutide vials ship unlabeled on purpose, so the team confirms your batch from your order number on WhatsApp and sends its published certificate.