Hi! I recently purchased Retatrutide 20mg , and they referred me to you for guidance.
The product comes with a vial containing the Retatrutide powder and a separate ampoule of liquid for reconstitution. I would like to understand exactly how I should prepare it before use —how to mix/reconstitute the powder with the liquid, how much liquid should be added, and how it should be stored after mixing.
I would also like guidance on what syringes/needles or other supplies I need, how the injection should be administered, and the recommended dosage and frequency.
Thank you!
Hey Mcastro!
Sure, let’s make this really simple, because peptide reconstitution sounds much more complicated than it actually is.
Your kit contains 20 mg Retatrutide + a separate 1 mL ampoule of bacteriostatic water, and the instructions specify subcutaneous administration.
Preparation:
- Wash your hands and clean the rubber stopper with an alcohol swab.
- Draw the 1 mL bacteriostatic water supplied with the kit into a sterile syringe.
- Inject it slowly into the Retatrutide vial, preferably letting the water run down the inside wall rather than blasting directly onto the powder.
- Do not shake it. Gently swirl/roll the vial until everything is dissolved.
- The finished solution should be clear, without visible particles or sediment.
Now the easy maths: 20 mg in 1 mL = 20 mg/mL.
So with a standard U-100 insulin syringe, where 100 units = 1 mL, 10 units = 2 mg and 12.5 units = 2.5 mg.
For administration, you’d use a sterile insulin syringe and give it subcutaneously, typically into abdominal fat, rotating injection sites and using a new needle every time.
The supplied instructions suggest starting at 2.5 mg once weekly for weeks 1–4, then only increasing to 5 mg during weeks 5–8 if it is well tolerated.
I wouldn’t rush that part. With these drugs, the lowest dose that is actually doing the job is usually the smartest dose.
Once mixed, keep the vial refrigerated at 2–8°C, protected from light, never frozen, and the instructions say to use the reconstituted product within approximately one month.
One important point: Retatrutide is still an experimental drug in Phase 3 trials, so I’d strongly recommend involving a doctor rather than treating the supplier schedule as individualized medical prescribing.
If you tell me your age, height, weight, goal and whether you’ve previously used semaglutide, tirzepatide or another GLP-1, we can discuss the rest much more intelligently.
Shark
