Compounded semaglutide stability data — temperature and light sensitivity

Dr.AddMedPHL said:

Storage question about storage and cold: my pen was left out of the fridge for 8 hours.

Adding a me-too, because a thread of one person's experience is not much use. I had assumed I was the exception until I read this.

VendorMark said:

Cold chain shipping for storage and cold: my last order arrived with the cold pack completely melted and the vial at room temperature.

Bookmarking. The distinction being drawn above is the one nobody else makes. I will report back once I have actually tried it.

From the other side of the consultation, briefly.

Storage best practices for compounded storage and cold:

• Unreconstituted lyophilized powder: refrigerate (36-46°F), good for 12+ months
• Reconstituted vials: refrigerate, use within 28 days
• Pre-filled pens: refrigerate until first use, then room temp OK for 28 days
• Never freeze reconstituted peptides — ice crystals damage the protein
• Protect from light — store in original box or wrap in foil

When in doubt, refrigerate. Temperature abuse is the #1 cause of reduced potency in compounded peptides.

Dr.GutHealth said:

Storage best practices for compounded storage and cold: Unreconstituted lyophilized powder: refrigerate (36-46°F), good for 12+ months Reconstituted…

Mine went the same way, slower.

Moderator note: a couple of off-topic posts removed.