Research question
What is the shelf life of a lyophilised retatrutide vial?
Shelf life is printed for the sealed lyophilised vial, not guessed from the test date on the certificate. The test date records when HPLC and identity work were done. It is not the last day the cake may be used. Read the label on the vial you received. If a use-before or retest date is printed there, that is the date that applies to the unopened solid stored as directed.
Storage conditions are part of that statement. GetReta’s direction for the unopened cake is refrigeration at 2 to 8 °C, protected from light. A vial left warm, or opened and then recapped, is outside that statement. GetReta does not assign a shelf life to a solution you prepare. Your SOP has to do that, with your own stability data if the method requires it.
If the label is missing a date, or the ink is unreadable, email orders@getreta.co.uk with the lot code and a photograph. Do not substitute the sample lot shown on the website. Research use only.