Where to buy Retatrutide in the Philippines
A triple agonist of the GIP, GLP-1 and glucagon receptors. Also called LY3437943. Priced in pesos, in stock in Metro Manila, with what to check before you buy.
- Price per mg
- ₱170
- In a 5-pack
- ₱2,643 ($44) per vial
- In a 10-pack
- ₱2,076 ($35) per vial
- Metro Manila
- Same day before noon, ₱150
- Provinces
- J&T, 1 to 5 business days
- Pay with
- GCash, Maya, Wise, Zelle, crypto
- Lab report
- Janoshik RETA-4728-A
A triple agonist of the GIP, GLP-1 and glucagon receptors. Primara Labs, our partner and supplier, lists Retatrutide 20mg at ₱3,390 as of 3 November 2026. Its published Janoshik report for batch RETA-4728-A covers bacterial endotoxin only.
Retatrutide price
| 20mg vial | Per vial | Per mg |
|---|---|---|
| Single | ₱3,390 ($57) | ₱170 |
| 5-pack | ₱2,643 ($44) | ₱132 |
| 10-pack | ₱2,076 ($35) | ₱104 |
Read on Primara's Retatrutide page, 3 November 2026. Packs save about 22% and 39% a vial. All prices.
What Retatrutide is on the research record
Retatrutide is an investigational compound from a large US drug maker. It acts on three hormone receptors at once: GIP, GLP-1 and glucagon. Most of the attention it gets in the Philippines comes from that third receptor, which the older two-receptor compounds do not target.
The best known published data is a 48-week Phase 2 trial in adults with obesity, published in the New England Journal of Medicine in 2023. The highest-dose group lost an average of 24.2 percent of body weight, and the most common side effects were gastrointestinal. Phase 3 trials under the developer's TRIUMPH program followed.
None of that data describes a research vial bought in Manila. Trial participants received a pharmaceutical product made to a registered specification, under medical supervision. A research vial is a different product, and the only thing that tells you what is inside it is a certificate for that lot.
Sources
Is Retatrutide approved?
Retatrutide is not approved as a medicine by FDA Philippines or by any other regulator we know of. It is sold in the Philippines only as a research compound.
- FDA Philippines
- Not registered as a medicine in the Philippines that we know of. Registration could not be read from the FDA Philippines verification portal, which timed out on every attempt on 23 September 2026.
- US FDA
- Investigational. Its developer's release of 23 July 2026 still describes it as investigational, and drugs@FDA returned no approved or tentatively approved application. Developer release, 23 July 2026.
FDA Philippines advisories naming Retatrutide
- FDA Advisory No. 2026-1392 (search on fda.gov.ph), 6 October 2026: Public health warning against an unregistered retatrutide 30mg lyophilized powder for injection.
- FDA Advisory No. 2026-1265 (search on fda.gov.ph), 26 September 2026: Public health warning against an unregistered retatrutide 30mg product.
Status rows checked 23 September 2026.
Peptides sold as research compounds are not registered medicines with FDA Philippines and are not approved for use in people. Are peptides legal in the Philippines?
Retatrutide lab reports
| Batch | Lab | Test type | Analysed | Verify |
|---|---|---|---|---|
| RETA-4728-A | Janoshik | Bacterial endotoxin (LAL) (full panel pending) | 21 September 2026 | Task 234146 |
Retatrutide is a long, modified peptide, so an identity test by mass spectrometry matters more than for short peptides. Look for identity, purity by HPLC, the measured amount per vial against the label, and ideally an endotoxin result.
Storing Retatrutide
Retatrutide is a long peptide with a fatty acid side chain, built to stay in circulation. In a vial it is a freeze-dried powder that keeps best sealed, in a fridge, away from light.
Once mixed, keep the vial cold and never frozen, and swirl rather than shake: long peptides are the ones most prone to clumping when agitated. A cloudy or flaky solution is a reason to stop and contact the seller.
Buying Retatrutide
It is the most searched compound on this site and the one most often faked, so ask for the lot number before paying and check that it matches the certificate.
Vial sizes vary between sellers. Compare price per milligram, not price per vial.
- Delivery: same day in Metro Manila, courier elsewhere.
- Ways to buy: GCash, Maya, Wise, crypto and more.
- Checks before paying: the lot number and the certificate.
Every Primara order includes 3ml bacteriostatic water, 10 insulin syringes, 10 alcohol pads and a reconstitution syringe. Ask the owner on WhatsApp.
Retatrutide questions
How much is Retatrutide in the Philippines?
₱3,390 ($57) for one 20mg vial at Primara Labs, ₱2,643 a vial in a 5-pack and ₱2,076 in a 10-pack, read 3 November 2026.
Is there a lab report for Retatrutide?
Janoshik batch RETA-4728-A: bacterial endotoxin (lal), 6.066 EU per vial, analysed 21 September 2026. Endotoxin only. It does not establish identity, amount or purity. Verify at https://verify.janoshik.com/tests/234146_H2KI86I8GWB4.
What side effects were reported in retatrutide trials?
In the 48-week phase 2 trial published in the New England Journal of Medicine in 2023, the most common side effects were gastrointestinal: nausea, diarrhoea, vomiting and constipation, mostly mild to moderate. Heart rate rose in a dose-related way and peaked around week 24. See the source linked on this page.
Has FDA Philippines warned about retatrutide?
Yes. FDA Philippines issued public health warnings against unregistered retatrutide products in Advisory No. 2026-1265 (26 September 2026) and Advisory No. 2026-1392 (6 October 2026). Both warn against specific unregistered products. Neither is a registration or approval of retatrutide.
Is retatrutide approved anywhere yet?
No. As of September 2026 its developer still described it as investigational, and the US FDA's drug database had no approved application. No regulator we know of has approved it.
Why is retatrutide more expensive than tirzepatide?
It is newer, harder to make, and demand is high. Across sellers in the Philippines it usually costs more per milligram than tirzepatide or semaglutide.
Is retatrutide the same as tirzepatide?
No. Tirzepatide acts on two receptors (GIP and GLP-1). Retatrutide adds a third, the glucagon receptor. They are different molecules.
Retatrutide 20mg, ₱3,390
A triple agonist of the GIP, GLP-1 and glucagon receptors.
