Pen Needles 31g 8mm
MaybeBuyers convert on 16.5% of searches. But the products selling today already average 4.6★, so Pen Needles 31g 8mm is a Maybe.
- Flapen Score
- 62 / 100Top 8% of 14,768 Health & Household niches · +13 vs the category median of 4962
- Market size
- $350K/yr95K searches / yr
- 90-day growth
- +35.4%search demand this quarter
- Competition
- 51%top-5 click share · 16 brands · 29 sellers
Flapen Score
Pen Needles 31g 8mm against its category
The dotted line is the Health & Household average. Past it, Pen Needles 31g 8mm is stronger. Inside it, weaker.
Market
The Pen Needles 31g 8mm market on Amazon at a glance
Shoppers on Amazon United States searched for Pen Needles 31g 8mm 95K times last year and spent an estimated $350K. The top 5 brands take 70% of clicks. Demand peaks in Feb–May. Flapen scores it 62 out of 100, a Maybe.
01 · Demand
An estimated 16.5% of those searches ended in a purchase.
Shoppers searched for this 95K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 16.5% of those searches ended in a purchase. Searches in the last 90 days moved +35.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $350K a year.
- Searches, last 12 months
- 95K
- Growth, 90 days vs prior 90
- +35.4%
- Conversion, latest week
- 16.5%
- Market size, estimated
- $350Ka year
- Peak month
- February9.5× the quietest month
- Top search term
- pen needles 31g 8mm33K searches a year
02 · Price
A sale here is worth $22.48.
Listings sell for $22.48 on average, from $8.71 to $299.35. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 250 to 500 of them. At $22.48 that is $6K to $11K a year per listing.
- Average price
- $22.48inside the $15 to $100 sweet spot
- Price range
- $8.71–$299.35
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $6K–$11K
- Returns
- 0.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
47% of listings pay for placement with sponsored ads. 83% ship with Prime. On an average day, 20.0% of listings are out of stock. The average listing ranks #552 within Diabetes Care. It carries 1,300 reviews at 4.64 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 47%
- Prime listings
- 83%
- Out of stock, average day
- 20.0%
- Average rank
- #552in Diabetes Care
- Average rating
- 4.64 starsAmazon United States average 4.42 stars
- Average reviews
- 1,300per listing
- Listings tracked
- 30
04 · Newcomers
10 of last year's 14 launches cleared the first-year sales bar.
14 products launched here in the last 12 months. 10 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 40 months on average, so the names here are settling in.
- Launched, last 12 months
- 14
- Successful launches
- 10Amazon's first-year sales bar
- Average brand age
- 40 months
Products
Top Pen Needles 31g 8mm products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 10, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Medt - Fine Insulin Pen Needles (31G 8 mm) Diabetic Needles for Insulin Injections Ultra Fine Compatible with Most Diabetes Pens - 100 Ct Pack of 2
- Price
- $15.20
- Rating
- 4.8/5
- Reviews
- 6,583
- Age
- 1y ago

Medt Fine Insulin Pen Needles 31G 8mm - Ultra-Fine Diabetic Pen Needles Designed for Comfort Universal Fit for Most Pen-Style Devices Sterile Single-Use Pen Tips 100 Count (Pack of 1)
- Price
- $8.71
- Rating
- 4.8/5
- Reviews
- 6,583
- Age
- 1y ago

31G 8mm Pen Tips Universal Fit 100 PCS Pen Tip Comfortable
- Price
- $12.58
- Rating
- 4.3/5
- Reviews
- 27
- Age
- 2mo ago

GLUCO-CARE Pen Tips 31G x 8mm (5/16) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box
- Price
- $10.99
- Rating
- 4.7/5
- Reviews
- 17
- Age
- 3mo ago

ONE-CARE Pen Tips 31G x 8mm 100 Count Twist-On Design Thin-Wall Structure ref 3019-01
- Price
- $12.32
- Rating
- 4.4/5
- Reviews
- 26
- Age
- 2mo ago
Trending
estimated 90-day click momentum
iHome Pen Tips 31G x 8mm Universal Fit 100 Count Comfortable
- Price
- $10.24
- Rating
- 4.8/5
- Reviews
- 5
- Age
- 3mo ago

GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box
- Price
- $11.74
- Rating
- 4.5/5
- Reviews
- 19
- Age
- 3mo ago

ONE-CARE Pen Tips 31G x 8mm 100 Count Twist-On Design Thin-Wall Structure ref 3019-01
- Price
- $12.32
- Rating
- 4.4/5
- Reviews
- 26
- Age
- 2mo ago

TRUEplus 5-Bevel Sterile Pen Needles 31G x 8mm (5/16 Inch) Single-Use Needles Silicone Coated Compatible Thread with Major Pen Devices 50 Count
- Price
- $9.99
- Rating
- 4.6/5
- Reviews
- 84
- Age
- 3mo ago

31G 8mm Pen Tips Universal Fit 100 PCS Pen Tip Comfortable
- Price
- $12.58
- Rating
- 4.3/5
- Reviews
- 27
- Age
- 2mo ago
Newest
by launch date
ONE-CARE Pen Tips 31G x 8mm 100 Count Twist-On Design Thin-Wall Structure ref 3019-01
- Price
- $12.32
- Rating
- 4.4/5
- Reviews
- 26
- Age
- 2mo ago

31G 8mm Pen Tips Universal Fit 100 PCS Pen Tip Comfortable
- Price
- $12.58
- Rating
- 4.3/5
- Reviews
- 27
- Age
- 2mo ago

31 Gauge 5/16 Inch/8mm Pen Accessories Pack of 200 Thin-Wall Channel Design Individually Wrapped
- Price
- $25.84
- Rating
- 4.5/5
- Reviews
- 19
- Age
- 2mo ago

GLUCO-CARE Pen Tips 31G x 8mm (5/16) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box
- Price
- $10.99
- Rating
- 4.7/5
- Reviews
- 17
- Age
- 3mo ago

GLUCO-CARE Pen Tips 31G x 6mm (1/4) Ultra-Thin Tip Design Thin-Wall Channel Structure Universal Twist-On Connection 100 Count Box
- Price
- $11.74
- Rating
- 4.5/5
- Reviews
- 19
- Age
- 3mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 51% of clicks. Leaders hold, but buyers still shop past them.
Brands
16 rising
Sellers
29
Est. top-5 brand share
70%
Top 20: 100%
Est. top-5 click share
51%
Top 20: 90%
Open market
23%
- Medt30%
- GLUCO-CARE13%
- ONE-CARE11%
- Pro Comfort9%
- TRUEplus8%
- Aicare7%
Demand
Pen Needles 31g 8mm search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Feb, May · busiest ÷ quietest = 9.5×
Search terms
Top Pen Needles 31g 8mm search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- pen needles 31g 8mm33K/yr
- 31g 8mm pen needles13K/yr
- insulin pen needles 31g 8mm14K/yr
- pen tips 31g x 8mm5K/yr
- one care pen needles 31g 8mm6K/yr
- 8mm pen needles6K/yr
- insulin pen needles 8mm5K/yr
- pen needles 8mm4K/yr
- ultra fine pen needles 31g 8mm3K/yr
- bd ultra fine short 8mm 31g pen needles6K/yr
Reviews and returns
What reviews say buyers love and hate about Pen Needles 31g 8mm
We read the reviews and the return reasons for every product selling here.
“Tiny”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Pen Needles 31g 8mm questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









