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Left: "Micro-Fine Pro 32G" in green packaging / Right: "Nanopass 34G" in orange packaging
When choosing an insulin injection needle, a crucial indicator is the "G (gauge)" unit. The larger the G number, the finer the needle's diameter becomes.
It's commonly believed that "the finer the needle, the less painful it is," but in reality, the needle's "sharpness (the bevel design of the tip)" also plays a significant role in pain reduction.
Features: While numerically slightly "thicker" than the orange needle, its key characteristic is its extremely sharp (finely beveled) tip design.
This reduces resistance at the moment of injection, allowing it to penetrate the skin smoothly, significantly reducing pain despite its gauge.
Micro-Fine Pro (4mm/32G) by Embecta. Features an Ultra-Thin wall structure.
Features: This is an "ultra-fine" injection needle, considered among the world's thinnest (with a diameter of just 0.18mm).
By pushing the limits of physical thinness, it's designed to minimize the sensation of the needle penetrating the skin itself, making it incredibly pain-resistant.
Nanopass Needle II (4mm/34G) by Terumo. Japanese quality that suppresses pain with reliable thinness.
The tip attached to a pen-style injector. It's crafted with extreme precision.
While needle compatibility certainly varies from person to person, to put it simply, for me, the "green needle (Micro-Fine Pro 32G)" was a better fit.
As part of my daily routine, I primarily inject into my abdomen. I've found that the green needle, thanks to its sharp tip, penetrates the abdominal skin smoothly without snagging.
On the other hand, while the orange needle (34G) benefits from being ultra-fine, some people might experience a slight resistance or a bending sensation when it penetrates the skin.
However, the green needle does have a drawback. If you're unlucky enough to hit a nerve beneath the abdominal skin, you might feel a sharp, stinging pain.
In that regard, the orange needle, being ultra-fine, seems to have a lower probability of stimulating nerves. Therefore, I recommend choosing based on the following criteria:
- Green Needle (32G - Sharpness-focused) is for you if:
- You prioritize a smooth, "effortless" insertion without snagging.
- You want to prioritize ease of insertion into the abdomen.
- Orange Needle (34G - Ultra-fine focused) is for you if:
- You want to avoid the "sharp pain of hitting a nerve" as much as possible.
- You want to reduce the sensation and apprehension of the needle itself.
Since insulin injections are a daily commitment, it's natural to want to choose an option that minimizes stress. Your doctor or pharmacist might allow you to compare samples or try a different type, so if you're curious, why not consult them?
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• Portion Sizes: The food portions and nutritional data featured in this blog are based on standard Japanese serving sizes, which may be smaller than typical Western servings.
• Net Carb Calculation: Net Carbs = Total Carbs - Dietary Fiber.
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*Medical Disclaimer: The content on this blog represents the author's personal records for informational purposes only. Always consult with your doctor.
