Ks-Tek Sterile Empty Vials with Self Healing Injection Port,with Aluminum Plastic Cap,Sterile Package (100ml Amber,4)

Good seal, glass is clear and strong with no defects.

I use these to filter peptides into. They seem to be sterile, but have no way of really testing them without spending hundreds of dollars. I know numerous people who use them without issue, so they seem to be fine.

Sterile. Nice. Exactly like at the lab. Great for b12 and other herbal supplements

I use these to empty my injection medication into and divide it into thirds (used with a syringe) and these work great. They are a great quality and seal perfectly.

A bit hard to removed the blue cap but otherwise great. Individually wrapped for sterility. Good product.

I use these for my GLP1 injections, I inject into the vial, add some bacteriostatic water and then voila, divide it into three injections. All of the vials arrived overseas unbroken and ready to use. Each vial was individually wrapped. No leakage. The only complaint I have is that there is no re-usable lid for storage. Minor thing, but work without.

Using it to divide mounjaro pen shots and it help me to keep ot stril and do the calculations when i am drwaing out the drug into insulin needle. Its one time use and medication should be sied whithin 24 hours just to keep in mind

These vials were easy to use and packaged very well. Good for use of administering medicine at home if needed. I would definitely purchase again.