Choose 2mL (5mg/mL) if: You are starting retatrutide for the first time Your current dose is 5mg per week or lower You want maximum measurement accuracy You prefer straightforward math Choose 1mL (10mg/mL) if: Your dose is 6mg per week or higher You want smaller injection volumes You are comfortable with precise syringe measurements You have experience reconstituting peptides Some researchers start with 2mL during their initial escalation phase and switch to 1mL once they reach maintenance doses above 4mg
This third mechanism is what separates retatrutide from tirzepatide and likely explains the additional ~2% weight loss seen in trials
Access to treatments in jeopardy Even as Marquez spoke of the prospect of widely available treatments, the board was finalizing plans to pass regulations that will severely restrict Californians access to sterile compounded substances, including glutathione
However, ingredients commonly used in GLP-1 support formulations, such as HMB (3 g), creatine (5 g), or protein (20 g), often require serving sizes that are impractical for capsules or tablets
Our goal is to expand COA access across the full catalog as production capacity grows