Px
PeptideCalc

Retatrutide

Triple agonist (GLP-1 / GIP / Glucagon)

Triple receptor agonist targeting GLP-1, GIP (glucose-dependent insulinotropic polypeptide), and glucagon receptors. The glucagon component adds significant energy expenditure boost on top of appetite suppression.

Dose

Start 500mcg/week

Cycle

Long-term use

Timing

Once weekly SubQ

Benefits & Effects

  • Up to 24% body weight reduction (phase 2 trials)
  • Strongest fat loss of any peptide class studied
  • Metabolic rate increase via glucagon action
  • Appetite suppression

Reconstitution & Dosing

Reconstitution

6mg + 2mL BAC = 3,000mcg/mL. 10mg + 2mL BAC = 5,000mcg/mL. 12mg + 2mL BAC = 6,000mcg/mL.

Dose

Start 500mcg/week. Titrate slowly every 4–8 weeks. Maximum studied dose: 12mg/week.

Cycle Length

Long-term use. Titrate up over 3–6 months.

Timing

Once weekly SubQ.

Calculate Retatrutide dose

Auto-fills your vial size, BAC water, and desired dose. Gets your exact syringe units.

Open Calculator →

Stacking

Generally used solo given its potency. May combine with Thymalin or immune peptides.

Cautions

More aggressive GI side effects than semaglutide. Titrate conservatively. Nausea, vomiting common at higher doses.

Frequently Asked Questions

What is Retatrutide used for?

Retatrutide is researched for: Up to 24% body weight reduction (phase 2 trials), Strongest fat loss of any peptide class studied, Metabolic rate increase via glucagon action, Appetite suppression. Triple receptor agonist targeting GLP-1, GIP (glucose-dependent insulinotropic polypeptide), and glucagon receptors. The glucagon component adds significant energy expenditure boost on top of appetite suppression.

What is the standard dosing for Retatrutide?

Start 500mcg/week. Titrate slowly every 4–8 weeks. Maximum studied dose: 12mg/week.

How do you reconstitute Retatrutide?

6mg + 2mL BAC = 3,000mcg/mL. 10mg + 2mL BAC = 5,000mcg/mL. 12mg + 2mL BAC = 6,000mcg/mL. Store reconstituted peptide refrigerated at 2–8°C for up to 60–90 days.

What peptides stack well with Retatrutide?

Generally used solo given its potency. May combine with Thymalin or immune peptides.

Are there any cautions with Retatrutide?

More aggressive GI side effects than semaglutide. Titrate conservatively. Nausea, vomiting common at higher doses.

What is the cycle length for Retatrutide?

Long-term use. Titrate up over 3–6 months. Timing: Once weekly SubQ.