The shelf life of weight loss peptides is not a fixed value. It depends primarily on two key factors: the product’s storage conditions and whether it has been opened/reconstituted. Unopened Lyophilized Powder Under standard storage conditions(refrigerated at 2–8°C, protected from light, sealed, dry, and free from drastic temperature fluctuations):The shelf life indicated at the time of manufacture is typically 24–36 months (subject to your product’s production standards and quality inspection report). This is the standard shelf life for lyophilized peptide medications, as the low-temperature environment maximizes their chemical stability. Under room temperature storage conditions(below 25°C, protected from light and sealed):Unopened powder can also be…