RETA-PEP 20mg

Peptide Storage Instructions:

Retatrutide 20mg is supplied as a sterile, lyophilized (freeze-dried) powder in sealed vials. Proper storage is critical to preserve peptide stability and integrity.

Lyophilized powder (unopened vial):
Store in a dry, desiccated environment at temperatures below −18 °C, with −20 °C or −80 °C recommended for long-term storage. Protect from light and moisture at all times. Under these conditions, the lyophilized material remains stable for several years. Short-term storage at room temperature (up to three weeks) is acceptable, provided the vial remains sealed and shielded from humidity and light.

After reconstitution:
Reconstitute the powder using sterile, bacteriostatic water in a controlled laboratory setting, following appropriate biosafety procedures. Once reconstituted, store the solution at 2–8 °C for short-term use (approximately 3–4 weeks), or freeze aliquots at −20 °C or lower for extended storage. Repeated freeze–thaw cycles should be avoided, as they accelerate degradation. For long-term storage, preparing sterile aliquots prior to initial freezing is strongly recommended.

All storage containers should be protected from direct light and kept sealed, preferably in opaque containers with desiccant when applicable. Prevent any moisture exposure to the lyophilized powder during storage.