This article is for general education and is not medical advice. Product names are trademarks of their respective owners. Always confirm compatibility with your specific pen.
Once you know your size (see our buying guide if you don't), the next question is often which brand to buy. Here's how the three most common universal-fit pen needles actually compare.
The short version
All three are universal-fit, screw-on pen needles built to the same industry connection standard, so any of them will physically fit the same range of pens. The differences come down to available sizes, tip design details, and personal comfort preference — not one being fundamentally "better" than another.
Side-by-side comparison
| NovoFine Plus | BD Nano 2nd Gen | BD Ultra-Fine | |
|---|---|---|---|
| Manufacturer | Novo Nordisk | BD (Becton Dickinson) | BD (Becton Dickinson) |
| Common sizes | 32G 4mm, 32G 6mm | 32G 4mm | 31G 5mm |
| Notable design feature | Thin-wall needle design intended to ease flow at a smaller gauge | Marketed on a shorter needle length for its gauge, aimed at comfort | An established, long-running design in the BD lineup |
| Fit | Universal screw-thread | Universal screw-thread | Universal screw-thread |
| Supplied with | Included standard with Ozempic pens | Not pen-specific; a common purchased alternative | Not pen-specific; a common purchased alternative |
NovoFine Plus
NovoFine Plus is the needle included in the box with Ozempic pens, which makes it the most familiar option for many GLP-1 users by default. It's available in both 4mm and 6mm at 32G, covering the two most commonly recommended lengths. Because it's the "known quantity" already supplied with the pen, many people simply reorder the same one rather than actively comparing brands.
BD Nano 2nd Gen
BD Nano is one of the most widely used alternative universal-fit needles, popular with people managing both insulin and GLP-1 medications. It's available at 32G 4mm, matching the most common modern default size. People who switch to it from a different brand often do so for price, availability, or simply because their pharmacy stocks it.
BD Ultra-Fine
BD Ultra-Fine is offered at 31G 5mm — a step up in both gauge and length from the 32G 4mm options above. It's a reasonable choice if your provider has recommended a slightly longer needle, or if 31G happens to be what you've used comfortably in the past.
How to actually decide
- Match your size first. Brand is secondary to getting the right gauge and length for you — see our gauge and length guides.
- If you're happy with what came with your pen (usually NovoFine Plus for Ozempic users), there's no need to switch — reordering the same one is a fine default.
- If you want to compare comfort, trying a different universal-fit brand at the same size is a low-risk way to see if you notice a difference — sensation is subjective and varies person to person.
- If cost or availability is the deciding factor, any of the three, at matching size, will function equivalently for injection purposes.
Does brand affect dose accuracy or safety?
No — at a matching gauge and length, all universal-fit needles from reputable manufacturers are built to deliver your pen's set dose accurately. The differences between brands are in tip geometry and marketing emphasis on comfort, not in dosing mechanics, which are controlled by your pen, not the needle.
Shop all three
- NovoFine Plus 32G 4mm – 100 Count
- NovoFine Plus 32G 6mm – 100 Count
- BD Nano 2nd Gen 32G 4mm – 100 Count
- BD Ultra-Fine 31G 5mm – 100 Count
Frequently asked questions
Is BD Nano or NovoFine Plus better?
Neither is objectively better — both are 32G 4mm universal-fit needles from reputable manufacturers. Preference usually comes down to comfort, price, or simply what you're used to.
Can I switch brands without asking my provider?
Switching between universal-fit needles at the same size is generally considered a low-risk change, but if you're also changing size (gauge or length), it's worth a quick check with your provider or pharmacist.
Why does my Ozempic pen come with NovoFine and not BD?
NovoFine Plus is manufactured by Novo Nordisk, the same company that makes Ozempic, which is why it's the needle included in the box. Other universal-fit brands are still compatible even though they're not the "house" brand.
Is one brand less painful than another?
Perceived comfort varies by individual and is influenced by tip design details as well as personal factors like technique and site. Many people don't notice a meaningful difference between reputable brands at the same size.
Educational content only — not medical advice. Product and brand names are trademarks of their respective owners. Last reviewed: August 2026.