Ks-Tek Sterile Empty Vials with Self Healing Injection Port,with Flip Off Aluminum Cap,Sterile Package (3ml,10)

I love these, each one I've used has been individually wrapped, sterile, vacuumed sealed really well too. They are they size they're supposed to be. Great glass material, nice and clean too. Fit my container that is speficially for 3ML vials so they are sized right.

These are awesome from Ks-Tek!! I bought some others that didn’t seem to be sterile after several days the bottoms would turn a funky color, These are individually sealed and packaged and sterile, and I’ve had no issues with these, I’ve seen ppl complain abt the tops and I just love the smooth top when cleaning with an alcohol pad nothing getting stuck to it So “quick tip” pry the cap off slowly then once off flip the cap around to the smooth side and gently just push straight down to flatten the top back out on ur bottle, Also using a venting needle when filling and or de pressurize it after u fill and you’ll have no leaking issues whatsoever!!!

The KS-Tek 10 mL individually wrapped sterile vials meet professional lab handling standards with excellent consistency and build quality.Each vial arrives individually sealed, maintaining sterility integrity and minimizing contamination risk during storage and staging. The borosilicate glass construction is uniform in wall thickness, free from visual defects, and demonstrates solid structural durability under standard laboratory handling conditions.The butyl rubber stoppers are well-centered and properly seated, providing reliable reseal performance after multiple needle punctures without excessive coring or fragmentation. Crimp seals are evenly applied with consistent compression, ensuring secure closure and pressure stability.Volume calibration appears accurate and repeatable across units, and the interior surface is clean with no visible particulate or residue. All units inspected were free of cracks, chips, or sealing irregularities.For laboratory, research, or controlled compounding applications requiring sterile 10 mL containment, these vials provide dependable quality control and professional-grade reliability.

My GLP meds come in a single dose pen and the strength is a little too strong. So I inject the pen (after taking the vial top off) into the vial. This vial is the perfect size as the liquid only takes up about a third of it. Flip it over and withdraw the amount needed with a standard insulin needle. I toss the rest.. this is a way for me to control dosing accurately. Highly recommend, came packaged individually and sterile.

Did what they were purchased for

Picked up a pack of these sterile empty vials to use for transferring research peptides, and they worked out perfectly.Having them individually wrapped gives you peace of mind that they stay clean in storage until you actually open one up. The rubber injection port seals tight, self-heals after multiple draws with a fine-gauge needle without leaking, and the flip-off cap pops off clean without tearing up the aluminum rim.If you need reliable, pre-sterilized vials for peptide or solution transfers, these are cheap, well-packaged, and hold a seal with zero issues.

I needed some small glass vials for a lab-related project, and these are much more convenient than trying to clean and reuse random little containers. The 5ml size is handy when you're working with small quantities and don't want a bunch of wasted space.The glass feels substantial for its size, and the flip-off aluminum caps with self-healing ports are a practical design. Having ten individually sterile-packaged vials is convenient for organized research work. They're small enough that labeling can take some creativity, but that's hardly a dealbreaker. Just make sure their specifications are appropriate for your intended application.

Good quality

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Gostei muito do produto, maravilhoso

I have been using them for TRT for many months now, with no problems at all. Recommended.

Great Vials very well packed. so much cheaper then buying singles.