What it is
A pre-filled pen with two sealed chambers: the lyophilized peptide in one, the sterile diluent in the other. They stay apart until the moment of use. One turn of the base mixes them; a dial sets the dose. It is the pen format of the same material sold in the vial, tested lot by lot.
How it works
Turn the base once: the diluent moves into the peptide chamber and the powder dissolves in seconds. Dial the dose in the window, press, done. No vial, no syringe, no bacteriostatic water to measure, nothing to calculate.
Advantages
- No reconstitution, the most error-prone step in research work
- Exact, repeatable doses set by a dial, not by hand
- Sterile until used: both chambers filled and sealed under sterile conditions
- Sealed under nitrogen; stable at room temperature before mixing (manufacturer's data)
- Less waste: no partial vials, no discarded diluent, no syringes
- Discreet and portable, the size of a marker pen
Storage and handling
Before mixing: room temperature, away from light. After mixing: refrigerate at 2–8 °C and use within the period stated for the compound. The pen is single-use for one series and cannot be refilled.
Which compounds
Retatrutide is the first compound offered in the dual-chamber pen; the rest of the range follows as each is validated in the format.
