---
title: "pen needles 31g 6mm — Niche Verdict: Worth a look (61/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/health-household/pen-needles-31g-6mm"
last_updated: "2026-07-14T01:32:39.456Z"
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meta:
  description: "pen needles 31g 6mm shows low returns (0.2%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:description": "pen needles 31g 6mm shows low returns (0.2%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:title": "pen needles 31g 6mm — Niche Verdict: Worth a look (61/100) | Amazon United States - Flapen"
---

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# **pen needles 31g 6mm**

**Worth a look**

Shows low returns (0.2%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 8Growth 74Conversion 96Competition 68Returns 99Price range 81Avg price 76Brand share 56Review moat 64Quality gap 22

**Returns**

**Incredible****0.2%**

return rate — above 6% kills the launch gate

**Conversion**

**Incredible****14.2%**

search→purchase rate — share of searches ending in a sale

**Price range**

**Great****$8.60–$45.39**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Avg price**

**Great****$15.55**

avg listing price — sweet spot $15–$100

**Growth**

**Good****+58.3%**

90-day search growth — must beat 0% to launch

**Competition**

**Good****44%**

top-5 click share — leaders hold, buyers still browse

**Review moat**

**Good****929.29**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Good****71%**

top-5 brand share — brands hold most of the demand

**Quality gap**

**Bad****4.7★**

avg incumbent rating — lower means beatable quality

**Market size**

**Bad****$33K**

$33K/yr · 15K searches

## **Competition**

The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**23 **▲rising

**Sellers**

**59**

**Top-5 brand share**

**71%**

**Open market**

**24%**

- GLUCO-CARE36% - ONE-CARE13% - CARELIVING11% - Medt8% - TRUEplus5% - Easy Touch4%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%3%$1K6%$2K9%$3K12%$4K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 38 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![CareLiving Insulin Pen Needle 31G 6 mm (1/4) 100 Count Universal Fit Compatible with Most Pen Injector Device Ultra-Thin for Comfortable Insulin Injection](https://m.media-amazon.com/images/I/5169ItTzRFL.jpg)**CareLiving Insulin Pen Needle 31G 6 mm (1/4) 100 Count Universal Fit Compatible with Most Pen Injector Device Ultra-Thin for Comfortable Insulin Injection**CARELIVING**$9.70**4.7★188 rev](https://www.amazon.com/dp/B0F43ND1TC) [2![GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box](https://m.media-amazon.com/images/I/41jr80hiDpL.jpg)**GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box**GLUCO-CARE**$11.74**4.5★19 rev](https://www.amazon.com/dp/B0GWJB4937) [3![GLUCO-CARE Pen Tips 31G x 6mm (1/4) Universal Twist-On Connection Thin Tip Design 100/bx Comfort](https://m.media-amazon.com/images/I/41QPUwCPucL.jpg)**GLUCO-CARE Pen Tips 31G x 6mm (1/4) Universal Twist-On Connection Thin Tip Design 100/bx Comfort**GLUCO-CARE**$9.26**4.6★102 rev](https://www.amazon.com/dp/B0DL4ZGVCH) [4![ONE-CARE Pen Tips 31G x 6 mm (1/4) Thin-Wall Channel Design Universal Twist-On Fit Compatible 100 Count](https://m.media-amazon.com/images/I/41pnqbDYlTL.jpg)**ONE-CARE Pen Tips 31G x 6 mm (1/4) Thin-Wall Channel Design Universal Twist-On Fit Compatible 100 Count**ONE-CARE**$9.43**4.8★637 rev](https://www.amazon.com/dp/B09J21WW1G) [5![GLUCO-CARE Plus Pen Tip 32G x 6mm Universal Fit 100/bx Extra Thin-Wall Technology for Optimal Flow](https://m.media-amazon.com/images/I/41bzjJPjRSL.jpg)**GLUCO-CARE Plus Pen Tip 32G x 6mm Universal Fit 100/bx Extra Thin-Wall Technology for Optimal Flow**GLUCO-CARE**$10.78**4.6★175 rev](https://www.amazon.com/dp/B0CTCPDT6Q)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![31G 6mm (1/4) Needle Individually Packaged 100 Count](https://m.media-amazon.com/images/I/41Gj4co2RYL.jpg)**31G 6mm (1/4) Needle Individually Packaged 100 Count**Maydeyy**$10.67**12 rev1mo ago](https://www.amazon.com/dp/B0H2ZNQ1TY) [![Pen Tips 33G x 6mm Universal Fit Comfortable Design 100 Count Pen Tip 33G 6mm](https://m.media-amazon.com/images/I/51MI3rvSVvL.jpg)**Pen Tips 33G x 6mm Universal Fit Comfortable Design 100 Count Pen Tip 33G 6mm**Pro Comfort**$10.25**7 rev2mo ago](https://www.amazon.com/dp/B0H117RCM9) [![31G 1/4 Inch/6mm Pen Tips Pack of 200 Thin-Wall Channel Design Individually Wrapped](https://m.media-amazon.com/images/I/51LAxCONAdL.jpg)**31G 1/4 Inch/6mm Pen Tips Pack of 200 Thin-Wall Channel Design Individually Wrapped**Pegmapri**$25.97**19 rev2mo ago](https://www.amazon.com/dp/B0GYRMHRPL) [![Pen Tips - 32 6mm Universal Fit Individually Sealed 100 Count](https://m.media-amazon.com/images/I/31ecm04BwiL.jpg)**Pen Tips - 32 6mm Universal Fit Individually Sealed 100 Count**GlucoSwift**$11.31**9 rev2mo ago](https://www.amazon.com/dp/B0GYLLKFKF) [![GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box](https://m.media-amazon.com/images/I/41jr80hiDpL.jpg)**GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box**GLUCO-CARE**$11.74**19 rev3mo ago](https://www.amazon.com/dp/B0GWJB4937)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Pen Tips - 32 6mm Universal Fit Individually Sealed 100 Count](https://m.media-amazon.com/images/I/31ecm04BwiL.jpg)**Pen Tips - 32 6mm Universal Fit Individually Sealed 100 Count**GlucoSwift**$11.31**4.8★**▲ 114%**](https://www.amazon.com/dp/B0GYLLKFKF) [![GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box](https://m.media-amazon.com/images/I/41jr80hiDpL.jpg)**GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box**GLUCO-CARE**$11.74**4.5★**▲ 114%**](https://www.amazon.com/dp/B0GWJB4937) [![31G 1/4 Inch/6mm Pen Tips Pack of 200 Thin-Wall Channel Design Individually Wrapped](https://m.media-amazon.com/images/I/51LAxCONAdL.jpg)**31G 1/4 Inch/6mm Pen Tips Pack of 200 Thin-Wall Channel Design Individually Wrapped**Pegmapri**$25.97**4.5★**▲ 113%**](https://www.amazon.com/dp/B0GYRMHRPL) [![31G 6mm (1/4) Needle Individually Packaged 100 Count](https://m.media-amazon.com/images/I/41Gj4co2RYL.jpg)**31G 6mm (1/4) Needle Individually Packaged 100 Count**Maydeyy**$10.67**4.9★**▲ 113%**](https://www.amazon.com/dp/B0H2ZNQ1TY) [![Pen Tips 33G x 6mm Universal Fit Comfortable Design 100 Count Pen Tip 33G 6mm](https://m.media-amazon.com/images/I/51MI3rvSVvL.jpg)**Pen Tips 33G x 6mm Universal Fit Comfortable Design 100 Count Pen Tip 33G 6mm**Pro Comfort**$10.25**3.9★**▲ 113%**](https://www.amazon.com/dp/B0H117RCM9)

**~~View all trending →~~**

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Value For Money**25%

*“Excellent price”*

**Quality-Overall**19%

*“They seem well made”*

**Ease Of Use**11%

*“easy to store”*

**Size-Overall**10%

*“They fit securely”*

**Advertised Vs Actual Product**8%

*“As Advertised”*

**Comfort-Overall**4%

*“No discomfort”*

**Efficiency**3%

*“These get the job done”*

**Compatibility-Overall**3%

*“which is a huge plus since I dont have to worry about compatibility issues”*

**Sharpness**2%

*“Nice sharp pen tips that fit my pen perfectly”*

**Leak-Proof**2%

*“They are individually sealed”*

### **What buyers complain about **

**Size-Overall**8%

*“I didnt realize they were so short”*

**Quality-Overall**7%

*“Very cheaply made”*

**Thickness**6%

*“4mm is somewhat too thick”*

**Pain Relief-Overall**6%

*“Welp, they hurt ya girl”*

**Value For Money**6%

*“price has increased unfortunately”*

**Sharpness**5%

*“Also these needles don't seem to be quite as sharp”*

**Functionality-Overall**4%

*“do not work for me”*

**Strength**3%

*“Bend easily”*

**Ease Of Use**3%

*“I hardly feel them during use”*

**Flexibility**3%

*“easily bendable”*

### **Top return reasons **

**Size-Overall**50%

**Advertised Vs Actual Product**14%

**Compatibility-Overall**8%

**Functionality-Overall**6%

**Value For Money**3%

**Leak-Proof**3%

**Joint Pain**2%

**Sharpness**1%

**Quality-Overall**1%

**Product Condition**1%