The manufacturers state these are sterile already, but we want to be absolutely sure… We steam sterilize all of our pen cartridges in house using our Class B autoclave before shipping to you. We value the integrity of your research and will not compromise that.
The steam sterilization indicators on the sleeves change to gray/black after proper temperatures are reached.
Sold in packs of 5. These cartridges fit our peptide pens, travel cases, as well as the 7 vial holders perfectly.
