Weekly Dosing Guide
Retatrutide
Retatrutide is a triple receptor agonist used for advanced appetite suppression, metabolic support, blood sugar regulation, and weight management.
Dosage based on a mix of 10 units = 1 mg
| Dose level | Milligrams (mg) | Units (U-100 syringe) |
|---|---|---|
| Beginner | 1 mg | 10 units |
| Standard | 2 mg | 20 units |
| Moderate | 3 mg | 30 units |
| Advanced | 4 mg | 40 units |
For faster results: start at 20 units and increase by 20 units every 4 weeks. Adjust units if your mix is different.
How often to use
- Once weekly on the same day each week.
- Best taken in the morning (fasted) or before bed.
Cycle length
- Standard cycle: 8–12 weeks.
- Extended option (advanced use): up to 16 weeks.
Break / reset
- Take 2–4 weeks off after each cycle.
- Example: 12 weeks on, then about 4 weeks off.
- Adjust your units if your reconstitution mix is different.
How to administer
- Draw the prescribed number of units with an insulin syringe.
- Inject subcutaneously into the abdomen, thigh, or upper arm.
- Rotate injection sites and use a new needle each time.
Storage
- Store reconstituted vial in the refrigerator (2–8°C / 36–46°F).
- Do not freeze.
- Protect from light.
- Use within 90 days after first puncture.
- Keep the vial tightly sealed when not in use.
Common use
- Appetite suppressant & weight loss
- Enhanced metabolic support
- Blood sugar regulation
- Weight management
Important
- For research use only – not for human or veterinary use.
- Not for resale or distribution.
- Keep out of reach of children.
- Consult with a healthcare professional before use.
- Discontinue use if adverse reactions occur.
- Use sterile technique at all times.
How to inject
Reading your syringe
Doses on this site are written in units. A standard U-100 insulin syringe holds 100 units (1 mL). Each small line is 1 unit; each long numbered line is 10 units. Draw to the line where the black plunger tip stops.

Subcutaneous injection sites
Most peptides are injected subcutaneously — into the fat just under the skin. Common sites are the abdomen (avoid 2 inches around the navel), front outer thigh, outer upper arm, upper outer hip, or lower back. Clean the area, rotate sites, and use a new needle each time.

Need Retatrutide 20 mg?
20 mg vial
