Inject slowly : Insert the syringe needle through the rubber stopper of the peptide vial and inject the bacteriostatic water slowly against the glass wall do not inject directly onto the powder
13 Peptide Storage GuideBest practices for storing lyophilized peptides and proteins (temperature, humidity, light)
To put that in perspective, a 10 mg/kg dose in a 250-g rat, scaled allometrically to a 70-kg human using the FDA's body surface area conversion factor of 6.2, translates to roughly 1.6 mg/kg, or 112 mg for a 70-kg person 7
The truth is, there is a third option worth exploring
Handle in accordance with standard laboratory safety procedures
A refrigerator with a verified 2 to 8 degrees Celsius range, ideally with a thermometer or data logger covering the four-week reconstitution window