Retatrutide · Triple Agonist · 10mg & 30mg Vials
Retatrutide 10mg & 30mg
Retatrutide is a once-weekly peptide that works on GLP-1, GIP and glucagon receptors. This triple-agonist action is why it has attracted so much attention for appetite control and weight loss.
Thai Anabolics offers 10mg and 30mg Cat Pharmaceuticals vials. Both are supplied as powder and can be mixed to the concentration that works best for your weekly dose.
10mg & 30mg
Once weekly
Cat Pharmaceuticals
GLP-1 + GIP + Glucagon
Choose your vial
Retatrutide 10mg or 30mg
10mg vial
Good for Lower Weekly Doses
The 10mg vial is a good choice for customers starting at a lower weekly dose or who want to see how they respond before moving to a larger vial.
Total Retatrutide: 10mg per vial
30mg vial
Better Value for Longer Use
The 30mg vial gives three times as much Retatrutide and is the better option for customers using higher weekly doses or planning a longer fat-loss phase.
Total Retatrutide: 30mg per vial
Weekly dosage
Retatrutide Dosage
Retatrutide is used once per week. Start low and only increase when you need more appetite control or your weight loss has slowed.
| Stage | Weekly Dose |
|---|---|
| Low Dose | 1mg once weekly |
| Starting Dose | 2mg once weekly |
| Next Step | 4mg once weekly |
| Higher Dose | 6mg once weekly |
| Advanced | 9mg once weekly |
| Highest Trial Dose | 12mg once weekly |
A simple approach is to stay at each dose for around 4 weeks before increasing. The major Phase 3 trials used 2mg → 4mg → 6mg → 9mg → 12mg steps for the highest-dose group.[1]
You do not have to keep increasing. If appetite is controlled and your weight is moving in the right direction, stay at the dose that is already working.
Lower-dose use
Does 1mg Retatrutide Work?
Yes. A lower weekly dose can still produce results.
In the Phase 2 obesity trial, the fixed 1mg once-weekly group lost an average of 8.7% of bodyweight at 48 weeks.[2]
For clients who get strong appetite control at 1mg, there is no reason to rush straight to the higher trial doses.
Mixing guide
How to Mix Retatrutide
A simple option is to add 1ml of sterile water to either vial. This keeps the math easy and makes the 30mg vial especially convenient for higher weekly doses.
| Vial | Add Sterile Water | Final Concentration |
|---|---|---|
| 10mg vial | 1ml | 10mg/ml |
| 30mg vial | 1ml | 30mg/ml |
10mg Vial + 1ml Water
| Retatrutide Dose | U-100 Syringe |
|---|---|
| 1mg | 10 units |
| 2mg | 20 units |
| 4mg | 40 units |
| 6mg | 60 units |
| 9mg | 90 units |
30mg Vial + 1ml Water
| Retatrutide Dose | U-100 Syringe |
|---|---|
| 1mg | 3.3 units |
| 2mg | 6.7 units |
| 4mg | 13.3 units |
| 6mg | 20 units |
| 9mg | 30 units |
| 12mg | 40 units |
Using a different amount of sterile water? Use our Peptide Calculator → to calculate the correct syringe amount.
Triple agonist
Why Retatrutide Is Different
Semaglutide mainly targets GLP-1. Tirzepatide targets GLP-1 and GIP. Retatrutide adds a third target: the glucagon receptor.
That GLP-1 + GIP + glucagon combination is why Retatrutide is often called a triple agonist.
Weight-loss results
How Much Weight Did Retatrutide Users Lose?
In the 2026 TRIUMPH-1 Phase 3 trial, average weight loss at 80 weeks reached:
4mg: 19.0%
9mg: 25.9%
12mg: 28.3%
The 12mg group lost an average of about 70.3 lb / 31.9kg.[1]
Cutting & fat loss
Using Retatrutide for a Cutting Phase
Retatrutide is useful during a cutting phase because appetite control makes it much easier to stay in a calorie deficit for several weeks or months.
It can be used alongside anabolic steroids, HGH, SARMs, peptides and normal sports supplements. The Retatrutide dose should still be based on your appetite and rate of weight loss rather than trying to match the dose to another compound in the cycle.
The goal is not to use the highest dose possible. The goal is to use enough to control hunger and keep fat loss moving.
Storage
Retatrutide Storage
Before mixing: keep the vial cool, dry and protected from direct light.
After mixing: keep refrigerated at approximately 2°C–8°C. Do not freeze.
Independent testing
Retatrutide 10mg Lab Report
The Cat Pharmaceuticals Retatrutide 10mg vial was independently tested by OnSet Biological Testing Laboratory.
OnSet Biological Testing Laboratory
26-013058
2 February 2026
TR7364
Retatrutide (HPLC)
10.19mg/vial
Purity: 99.51% · Specification: NLT 10mg/vial
Independent testing
Retatrutide 30mg Lab Report
The Cat Pharmaceuticals Retatrutide 30mg vial was independently tested by OnSet Biological Testing Laboratory.
OnSet Biological Testing Laboratory
26-180349
18 August 2026
TR8637
Retatrutide (RP-HPLC-UV)
32.06mg/vial
Purity: 99.82% · Specification: NLT 30mg/vial
Thailand delivery
Buy Retatrutide 10mg or 30mg in Thailand
Choose the Cat Pharmaceuticals 10mg or 30mg vial from the options above. The 10mg vial is ideal for lower weekly doses, while the 30mg vial gives better value for longer use and higher doses.
Sources
Retatrutide Sources
-
Eli Lilly and Company.
TRIUMPH-1 Phase 3 Retatrutide Results.
May 2026. At 80 weeks, average bodyweight reductions were 19.0% at 4mg, 25.9% at 9mg and 28.3% at 12mg.
View Phase 3 results -
Jastreboff AM, Kaplan LM, Frías JP, et al.
Triple-Hormone-Receptor Agonist Retatrutide for Obesity — A Phase 2 Trial.
New England Journal of Medicine. 2023;389:514–526. The fixed 1mg once-weekly group lost an average of 8.7% bodyweight at 48 weeks.
View study
Written by
Adrian
Adrian writes practical, experience-led content covering fat loss, cutting, peptides, dosage and performance enhancement in Thailand. On this page, the focus is Retatrutide dosage, low-dose use, mixing, cutting, weight-loss results and independent testing.
