Pen Needles

Insulin & GLP-1 Pen Needles

Pen needles are the small, single-use tips that attach to an insulin or GLP-1 pen injector. Choosing the right one makes a real difference to daily comfort. Zahrun stocks genuine, factory-sealed pen needles from trusted brands including NovoFine, NovoFine Plus, and BD — shipped fast and discreetly across the U.S.

Understanding Gauge (G) and Length (mm)

Two numbers describe every pen needle, and they work differently:

• Gauge (G) is the thickness — and a higher number means a thinner needle. A 32G needle is thinner than 31G, which is thinner than 30G. Thinner needles are generally associated with greater comfort.
• Length (mm) is how far the needle goes in. Shorter 4mm needles are the most common modern choice; 5mm, 6mm, and 8mm options are also available.

For most people, 32G × 4mm balances thin and short — which is why it's the format included with many pen injectors. Needle length and gauge are personal choices to discuss with your healthcare provider.

Compatible With Insulin & GLP-1 Pens

Pen needles use a universal screw-thread standard, so most major-brand needles fit most pens — including the pen injectors used for GLP-1 medications such as Ozempic®, Wegovy®, Mounjaro®, and Zepbound®. Always confirm compatibility with your specific device and follow its instructions for use.

Shop by Size

• NovoFine Plus 32G 4mm – 100 Count — our most popular option
• NovoFine 32G 4mm – 100 Count
• BD Nano 2nd Gen 32G 4mm – 100 Count
• BD Ultra-Fine 31G 5mm – 100 Count
• NovoFine 30G 8mm – 100 Count

Buying regularly? The 2-box and 3-box value packs lower your cost per needle.

Safe Use & Disposal

Use a new needle for every injection — reusing a needle dulls the tip, making injections less comfortable, and increases infection risk. Dispose of used needles in an FDA-cleared sharps container according to your local guidelines. Note that some U.S. states require a prescription to purchase pen needles; check your state's rules before ordering.

Also shop lancets & lancing devices and diabetes test strips to complete your kit.