scum bum
Worth a lookShows low returns (0.5%), but soft demand (-45.0% this quarter) keeps it on the watch list.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Avg price
Incredible$23.35avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Price range
Great$6.13–$46.11cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good6.9%search→purchase rate — share of searches ending in a sale
Market size
Good$412K$412K/yr · 256K searches
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Review moat
Bad6,318.15avg incumbent reviews — the moat a new listing must climb
Competition
Bad74%top-5 click share — a locked-up shelf
Growth
Bad-45.0%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, scum bum is a $412K/yr Amazon United States market (256K searches/yr). The top 5 brands hold 87% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
scum bum market data
- Units sold / yr
- 8K–10K
- avg 500–750/product
- Revenue / yr
- $187K–$234K
- units × avg price
- Conversion rate
- 6.9%
- Avg BSR
- #337
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 10.3%
- Avg brand age
- 53 months
- Avg seller age
- 153 days
Competition & brand share
The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 falling
Sellers
12
Top-5 brand share
87%
Top 20: 100%
Top-5 click share
74%
Top 20: 100%
Open market
8%
- Speed Cleaning44%
- Joaouu18%
- Zep9%
- Bio-Clean Products9%
- Uncle Todd's6%
- Generic5%
- Open — no brand owns it (3 brands, 8%)
Demand
Weekly Amazon search volume, last 37 weeks — -45.0% search growth over the last 90 days.Top scum bum search terms
- scum bum128K/yr
- scum bum speed cleaning67K/yr
- scum bum hard water remover16K/yr
- scumbum10K/yr
- speed cleaning scum bum shower cleaner11K/yr
- scumbum hard water shower cleaner2K/yr
- scum bum shower cleaner5K/yr
- scumbum hard water cleaner4K/yr
- scum bum cleaner4K/yr
- speed cleaning scum bum3K/yr
Top scum bum 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 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Speed Cleaning Scum Bum Hard Water Remover Bathroom & Tile Cleaner Non-Toxic Biodegradable Commercial Strength 16 oz Ready to Use
Speed Cleaning$25.752.9★3 rev
Joaouu Hard Water Remover Cleaner for Shower Glass Toilet Water Pipe Tub & Sink 500 ml/17.6fl oz
Joaouu$30.504.7★18 rev
Speed Cleaning Scum Bum Non Toxic Hard Water Bathroom Cleaner + Mix Bottle
Speed Cleaning$44.524.6★23 rev
Zep Home Pro 2-in-1 Foaming Soap Scum Eliminator and Preventer Morning Dew Scent R54006-32 Fl Oz -Bleach-Free Formula
Zep$8.164.6★426 rev
Bioclean Hard Water Stain Remover 20.3oz
Bio-Clean Products$19.754.3★25,396 rev
Newest
by launch date
Speed Cleaning Non Toxic Cleaner Bundle (Scum Bum Red Juice & Blue Juice)
Speed Cleaning$46.112 rev
Speed Cleaning Scum Bum Hard Water Remover Bathroom & Tile Cleaner Non-Toxic Biodegradable Commercial Strength 16 oz Ready to Use
Speed Cleaning$25.753 rev
Speed Cleaning Scum Bum Non Toxic Hard Water Bathroom Cleaner + Mix Bottle
Speed Cleaning$44.5223 rev
Speed Cleaning Scum Bum Non Toxic Hard Water Bathroom Cleaner Concentrate
Speed Cleaning$42.870 rev
Hard Water Stain Remover Shower Glass Cleaner Soap Scum Remover Limescale Buildup Remover All-Purpose Bathroom Cleaner for Glass Shower Doors Tiles Toilet Tub Sink & Water Pipes (1PC)
Generic$17.2726 rev
Trending
90-day click momentumSpeed Cleaning Scum Bum Non Toxic Hard Water Bathroom Cleaner Concentrate
Speed Cleaning$42.870.0★
Speed Cleaning Scum Bum Hard Water Remover Bathroom & Tile Cleaner Non-Toxic Biodegradable Commercial Strength 16 oz Ready to Use
Speed Cleaning$25.752.9★
Hard Water Stain Remover Shower Glass Cleaner Soap Scum Remover Limescale Buildup Remover All-Purpose Bathroom Cleaner for Glass Shower Doors Tiles Toilet Tub Sink & Water Pipes (1PC)
Generic$17.273.6★
Speed Cleaning Scum Bum Non Toxic Hard Water Bathroom Cleaner + Mix Bottle
Speed Cleaning$44.524.6★
Speed Cleaning Non Toxic Cleaner Bundle (Scum Bum Red Juice & Blue Juice)
Speed Cleaning$46.115.0★
What buyers say about scum bum
What buyers praise and complain about, mined from review topics.What buyers love
“Cleans great”
“Quality, Price & Functional Sprayers”
“Smells great”
“Very effective”
“Makes life so much easier”
“Good price”
“Works as Advertised”
“look brand new”
“This is just a gentle cleanser”
“This stuff with a little added Elbow Grease worked great”
What buyers complain about
“Does not work as described”
“has been a problem cleaning for awhile”
“have tough stains”
“Bad smell”
“very disappointing considering the price”
“Didnt work as advertised”
“Not terribly impressed with the performance of this product”
“it still does not get the water spot out the shower Glass”
“didnt get out soapy residue”
“Didn't work on rust stains on concrete patio”
Top return reasons
Common questions
- Is scum bum profitable to sell on Amazon United States?
- The niche generates $412K/yr across 13 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is -45.0%. Flapen's verdict: Worth a look (50/100).
- How competitive is the scum bum niche?
- 9 brands and 12 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 87% of demand.
- What do buyers complain about in scum bum?
- Top complaints mined from reviews: Functionality-Overall, Ease Of Cleaning, Stain Resistance. The return rate is 0.5%.
- What does it cost to enter the scum bum niche?
- Listings span $6.13–$46.11; the average listing price is $23.35 (sweet spot $15–$100). The average incumbent carries 6,318 reviews — the moat a new listing must climb.