Research peptides in Bangkok used to mean a choice between an overseas vendor with a three week wait and a chat seller with no paperwork. Reta Bangkok is the third option: tested stock held in the city, a certificate of analysis on every batch, and same day delivery before 3 pm. We specialise in the weight management peptides rather than carrying forty compounds, which is why the full retatrutide range stays in stock and why we are the only supplier in Thailand with a retatrutide and cagrilintide blend.
Everything on this site is supplied strictly for laboratory research. Nothing here is medical advice.
What we stock
| Compound | Sizes | From |
|---|---|---|
| Retatrutide | 10, 20, 30, 40, 60 mg | ฿2,800 |
| Tirzepatide | 10, 30 mg | ฿2,400 |
| Retatrutide + Cagrilintide blend | 5 mg + 5 mg | ฿5,100 |
| Bacteriostatic water | 3, 10 ml | ฿200 |
Three vials of the same product take 10 percent off automatically, five take 12 percent, ten take 15 percent. Orders over ฿15,000 unlock an order level discount, and Wise and crypto payments take a further 5 and 10 percent at checkout. Full detail in our price guide.
How we test
Every batch goes to an independent laboratory for identity and purity testing before it is listed. The resulting certificate of analysis is published on the product page, and every vial carries a QR code tied to its batch number, so a vial in your hand can be matched to the certificate on the site. We do not sell a batch we have not tested, and we do not sell product without a batch number.
Delivery across Thailand
Bangkok: order before 3 pm, seven days a week, and it arrives the same day by courier. Pattaya, Chiang Mai, Phuket, Hua Hin and the rest of the country: one to three days by tracked courier. Lyophilised peptides are stable at room temperature for the length of a domestic delivery, so nothing needs cold chain until it is reconstituted. City guides: Pattaya, Phuket, Chiang Mai.
Payment
Visa, Mastercard, Wise and cryptocurrency. Prices in baht, foreign cards accepted. Wise and crypto carry an automatic discount because they cost less to process. Every order is prepaid and tracked.
Research notes
We publish referenced guides for researchers working with these compounds in Thailand: what the retatrutide trials show, retatrutide vs tirzepatide, retatrutide vs semaglutide, cagrilintide and the amylin pathway, how to reconstitute, and why bacteriostatic water matters. The full list is on the research page, and the reconstitution calculator handles the arithmetic for any vial and water volume.
Why a specialist
A catalogue of forty peptides means forty things to keep in stock, forty things to test and forty things to know. We chose to do a handful properly. Retatrutide is our core product, and keeping every size from 10 mg to 60 mg available, tested and deliverable the same day is a full time job. Tirzepatide is the reference compound researchers compare it against, and the cagrilintide blend is the combination the field is moving towards. That is the range, and it is all in Bangkok, today.
For wholesale, recurring supply or anything over ten vials, contact us and we will price it the same day.
All products on Reta Bangkok are for laboratory research use only, not for human or veterinary use.