Retatrutide 20mg
A synthetic single-molecule agonist at the GIP, GLP-1 and glucagon receptors. Research material; receptor pharmacology is described in the primary literature.
Also cataloged as GLP-3, GLP-3 (RT), GLP-3 RT, LY3437943, triple agonist.
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Research use only. Not for human or veterinary use. Not a drug, food, supplement, cosmetic or medical device. Nothing on this page is medical advice.
Choose a Retatrutide vial size
One Retatrutide listing, four exact vial choices. Move the rail to compare the published price and cost per milligram, then add the selected SKU to your cart.
Slide or use the arrow keys. The selected vial keeps its own price, supply record and cart SKU.
At its $6.25/mg list price, this vial is 103% more per milligram than the 60mg at $3.08/mg. Stepping up costs $60.00 more per vial and buys 40mg more material. The smaller size is the right buy when you want less of a single lot, not when you want a lower unit price.
| Compound | Retatrutide |
|---|---|
| Also cataloged as | GLP-3, GLP-3 (RT), GLP-3 RT, LY3437943, triple agonist |
| CAS number | 2381089-83-2 |
| Molecular formula | C221H342N46O68 |
| Molecular weight | 4731.3 g/mol (parent peptide) |
| Sequence | 39 amino acids; Aib at 2 & 20; α-methyl-Leu13; Lys17 lipidated (C20 diacid–γGlu–AEEA); C-terminal amide |
| Physical form | Sterile freeze-dried powder |
| HPLC purity | guaranteed 98% or higher; the lot certificate states the measured figure |
| Fill | guaranteed at least 90% of the labeled mass; the lot certificate states the measured figure |
| Testing laboratory | Accumark Labs |
| COA test date | 2026-09-10 |
Chemistry is verifiable against public registries. The supply-record purity and mass summary below is separate from a public printed-lot match.
Where this price sits
The lowest competitor figure in our snapshot is Kylo at $84.98 ($4.25/mg) after a $697 lifetime fee. Effect's lowest published price is $124.99 ($6.25/mg) as a list price. Kylo is $40.01 lower on the vial. See the full comparison method.
Competitor prices observed 2026-09-15 at a matched vial mass. Reproduced as observations of published pricing, not as statements about another company's products.
Bulk tiers on this vial
| Quantity | Discount | Per vial | Effective $/mg |
|---|---|---|---|
| 1–2 vials | — | $124.99 | $6.25/mg |
| 3+ vials | 10% | $112.49 | $5.62/mg |
| 10+ vials | 25% | $93.74 | $4.69/mg |
| 25+ vials | 35% | $81.24 | $4.06/mg |
Public bulk tiers apply to eligible order requests. Bulk pricing in full.
Laboratory handling information for material in storage. Not a preparation procedure and not for use.
- Ships at ambient temperature; stable as lyophilized powder in transit.
- Store the sealed vial cold and dark on receipt.
- Aliquot rather than repeatedly freezing and thawing one vial.
- Powder is markedly more stable than material in solution.
Purity and mass for this size
This is a summary of the supply record, not a claim that the lot identifier printed on an Effect vial has been publicly cross-matched. Check the printed identifier against the private source record before fulfillment.
| Labeled mass | Measured mass | Recorded purity | Laboratory | Test date | Record |
|---|---|---|---|---|---|
| 20 mg | 22.44 mg | 99.97% | Accumark Labs | 2026-09-10 | Current |
| 20 mg | Not reported | 99.75% | Freedom Diagnostics | 2026-08-26 | Superseded |
"Not reported" means this supply record has no measured-content value. No report PDF, verification credentials or private identifiers are published. See the result library.
What the supplied reports measured
These owner-supplied sample records were cataloged separately from the current supply snapshot. Some figures may overlap that snapshot; a matching number does not establish a second test or a printed-vial match. Rows are never averaged to fill a missing current value.
| Result | Measured mass | Reported purity |
|---|---|---|
| Record 1 | 22.44 mg | 99.97% |
| Record 2 | 21.94 mg | 99.75% |
| Record 3 | 17.1 mg | 99.96% |
"Not reported" means the source did not give a measured peptide-content value. Blend rows show component masses where the source reported them, not a whole-vial mass. See the complete public summary.
Questions about Retatrutide 20mg
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