reduce swelling knee
Worth a lookShows demand growing +185.9% this quarter, but a concentrated shelf (top 5 take 77% of clicks) keeps it on the watch list.
Growth
Incredible+185.9%90-day search growth — must beat 0% to launch
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Avg price
Great$21.80avg listing price — sweet spot $15–$100
Conversion
Great7.8%search→purchase rate — share of searches ending in a sale
Price range
Great$9.53–$33.36cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay81%top-5 brand share — brands hold most of the demand
Returns
Okay4.9%return rate — above 5% kills the launch gate
Review moat
Bad4,696.92avg incumbent reviews — the moat a new listing must climb
Market size
Bad$86K$86K/yr · 51K searches
Competition
Bad77%top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, reduce swelling knee is a $86K/yr Amazon United States market (51K searches/yr). The top 5 brands hold 81% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
reduce swelling knee market data
- Units sold / yr
- 4K–5K
- avg 250–500/product
- Revenue / yr
- $87K–$109K
- units × avg price
- Conversion rate
- 7.8%
- Avg BSR
- #237
- Page quality
- 0%
- Prime
- 83%
- Sponsored
- 92%
- Out of stock
- 15.4%
- Avg brand age
- 35 months
- Avg seller age
- 171 days
Competition & brand share
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.Brands
11
Sellers
15
Top-5 brand share
81%
Top 20: 100%
Top-5 click share
77%
Top 20: 100%
Open market
13%
- Bodyprox31%
- Trueknee19%
- Tenvic14%
- MAXVIVA10%
- JHVW7%
- Generic6%
- Open — no brand owns it (5 brands, 13%)
Demand
Weekly Amazon search volume, last 50 weeks — +185.9% search growth over the last 90 days.Top reduce swelling knee search terms
- tenvic knee strap27K/yr
- tenvic knee strap for pickle ball11K/yr
- tenvic8K/yr
- tenvic airpad knee strap3K/yr
- tenvic airpad2K/yr
Top reduce swelling knee products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Bodyprox Patella Tendon Knee Strap 2 Pack Knee Pain Relief Support Brace
Bodyprox$13.694.4★40,284 rev
Trueknee Tenvic Knee Strap Patella Adjustable Sports Support Band with 3D Silicone Airpad Non-Slip Knee Stabilizer for Running Basketball Hiking Gym Fitness Men & Women 2 Pack (Black)
Trueknee$33.363.7★8 rev
Tenvic Knee Strap Adjustable Patella Tendon Support Band with 0.3in 3D Silicone Airbag & Dual Anti-Slip Patellar Stabilizer Brace for Running Basketball Hiking Gym Men Women2Pcs
Tenvic$33.094.0★7 rev
JHVW Patellar Tendon Support Strap 2-Pack Knee Brace for Women Men Adjustable Knee Patella Band Strap for Tendonitis Running Squats (Black)
JHVW$16.364.2★428 rev
Sport Knee Strap with 8-Shaped Padding & 360 Compression Support Non-Slip Silicone Design for Tennis Pickleball Padel and High-Impact Sports (Black)
Generic$29.402.4★4 rev
Newest
by launch dateTenvic Knee Strap Adjustable Patella Tendon Support Band with 0.3in 3D Silicone Airbag & Dual Anti-Slip Patellar Stabilizer Brace for Running Basketball Hiking Gym Men Women2Pcs
Tenvic$33.097 rev
Trueknee Tenvic Knee Strap Patella Adjustable Sports Support Band with 3D Silicone Airpad Non-Slip Knee Stabilizer for Running Basketball Hiking Gym Fitness Men & Women 2 Pack (Black)
Trueknee$33.368 rev
YIMED Patellar Tendon Support Strap Silicone Patella Knee Strap for Knee Pain Relief Adjustable Patella Band Knee Brace for Basketball Jumpers Knee Tendonitis Osgood Schlatter (Black 1 Pack)
YIMED$25.6731 rev
Healrecux Patella Band Knee Strap Patella Tendon Support for Knee Pain & Tendonitis Patella Stabilizer Knee Brace for Running Basketball Jumpers Knee Tennis Volleyball & Squats - Inky 1 Pack
Healrecux$18.774 rev
Sport Knee Strap with 8-Shaped Padding & 360 Compression Support Non-Slip Silicone Design for Tennis Pickleball Padel and High-Impact Sports (Black)
Generic$29.404 rev
Trending
90-day click momentum
Used item. Do not purchase.Patellar Tendon Strap
MAXVIVA$18.924.0★
Trueknee Tenvic Knee Strap Patella Adjustable Sports Support Band with 3D Silicone Airpad Non-Slip Knee Stabilizer for Running Basketball Hiking Gym Fitness Men & Women 2 Pack (Black)
Trueknee$33.363.7★
Tenvic Knee Strap Adjustable Patella Tendon Support Band with 0.3in 3D Silicone Airbag & Dual Anti-Slip Patellar Stabilizer Brace for Running Basketball Hiking Gym Men Women2Pcs
Tenvic$33.094.0★
Stryde precision knee strap- 2 Pack Silicone Patellar Tendon Support Strap for Jumpers Knee Patellar Tendonitis Pain Relief Patella Band Knee Strap for Running Hiking Basketball SoccerVolleyball Tennis Workout
Patella$24.913.9★
YIMED Patellar Tendon Support Strap Silicone Patella Knee Strap for Knee Pain Relief Adjustable Patella Band Knee Brace for Basketball Jumpers Knee Tendonitis Osgood Schlatter (Black 1 Pack)
YIMED$25.674.4★
What buyers say about reduce swelling knee
What buyers praise and complain about, mined from review topics.What buyers love
“Pain free”
“Overall a great purchase”
“comfortable and provides the needed support”
“This item does its job”
“Fit true to size”
“I love how the strap is adjustable”
“As advertised”
“Great deal”
“Ease of use”
“made my knee feel great”
What buyers complain about
“Dont work well for me”
“Too small”
“Knee still hurts”
“Not very comfy”
“Missing a strap”
“isn't as well made as anticipated”
“Slips a little”
“Not good for real knee issues”
“Much more expensive at the drug store”
“Already coming apart”
Top return reasons
Common questions
- Is reduce swelling knee profitable to sell on Amazon United States?
- The niche generates $86K/yr across 12 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is +185.9%. Flapen's verdict: Worth a look (54/100).
- How competitive is the reduce swelling knee niche?
- 11 brands and 15 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 81% of demand.
- What do buyers complain about in reduce swelling knee?
- Top complaints mined from reviews: Functionality-Overall, Size-Overall, Pain Relief-Overall. The return rate is 4.9%.
- What does it cost to enter the reduce swelling knee niche?
- Listings span $9.53–$33.36; the average listing price is $21.80 (sweet spot $15–$100). The average incumbent carries 4,697 reviews — the moat a new listing must climb.