Is sulcabrush profitable to sell on Amazon United States?

The niche generates $273K/yr across 16 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +9.9%. Flapen's verdict: Worth a look (53/100).

How competitive is the sulcabrush niche?

9 brands and 30 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in sulcabrush?

Top complaints mined from reviews: Size-Overall, Hard Feel, Durability. The return rate is 0.5%.

When does demand for sulcabrush peak?

Demand peaks in Feb–Mar–Apr–May–Jun; the busiest month runs 3.1× the quietest.

What does it cost to enter the sulcabrush niche?

Listings span $4.62–$26.62; the average listing price is $12.71 (sweet spot $15–$100). The average incumbent carries 2,398 reviews — the moat a new listing must climb.

sulcabrush

Worth a look

Shows low returns (0.5%), but brand-locked demand (top 5 brands take 91% of clicks) keeps it on the watch list.

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Conversion

Great10.5%

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good$12.71

avg listing price — sweet spot $15–$100

Price range

Good$4.62–$26.62

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

Market size

Okay$273K

$273K/yr · 204K searches

Review moat

Okay2,398.44

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+9.9%

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

Competition

Okay66%

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

Brand share

Bad91%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, sulcabrush is a $273K/yr Amazon United States market (204K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Feb–Mar–Apr–May–Jun. Verdict: Worth a look — 53/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

sulcabrush market data

Units sold / yr: 20K–25K; avg 1,500–2,000/product
Revenue / yr: $254K–$318K; units × avg price
Conversion rate: 10.5%
Avg BSR: #111
Page quality: 0%
Prime: 100%
Sponsored: 81%
Out of stock: 0.0%
Avg brand age: 47 months
Avg seller age: 147 days

Competition & brand share

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

Brands

9 rising

Sellers

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

GUM72%
VeriFresh7%
Fregum5%
DenTek4%
Gsbnjuy3%
SMILE SAVER3%
Open — no brand owns it (3 brands, 6%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +9.9% search growth over the last 90 days.

Peak months: Feb, Mar, Apr, May, Jun · busiest ÷ quietest = 3.1×

Open Trend

Top sulcabrush search terms

gum stimulator44K/yr +29.9%11.7% conv.
gum massager23K/yr +24.4%5.4% conv.
sulcabrush35K/yr -1.7%3.3% conv.
gum stimulator - rubber tip stimulator30K/yr +8.0%13.4% conv.
rubber tip dental gum stimulator15K/yr -18.4%11.1% conv.
gum massager for receding gums15K/yr -7.5%5.2% conv.
rubber tip gum stimulator7K/yr +50.3%9.8% conv.
gum stimulator tool15K/yr -4.7%5.7% conv.
gum massagers for teeth8K/yr +2.0%2.6% conv.
sulcus brush4K/yr +5.9%1.0% conv.

All search terms

Top sulcabrush 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

GUM Stimulator Permanent Handle with Rubber Tip Long-Handled Stimulator & Plaque Remover for Teeth Health 1 Handle + 2 Refill Packs

GUM$10.014.6★1,626 rev

GUM Stimulator 1 Each (Pack of 4)

GUM$14.844.7★769 rev

GUM Stimulator Permanent Handle with 1 Rubber Tip Long-Handled Gum Massager & Plaque Remover for Teeth and Gum Health 1 Count

GUM$5.684.7★4,478 rev

GUM Stimulator Permanent Handle with 1 Rubber Tip Long-Handled Massager & Plaque Remover for Teeth Health 1 Count (Pack of 6)

GUM$18.904.7★4,478 rev

GUM Stimulator Refills - 3 Rubber Tips Included - Compatible with The Stimulator Permanent Handle - Massager Plaque Removal Health 3 Count (Pack of 1)

GUM$4.624.5★2,276 rev

Newest

by launch date

Fregum 6 Pack Gum Stimulator-Rubber Tip Stimulator with Covers Gum Massager Plaque Remover & Cleaner with Ergonomic Handle for Receding Gums and Oral Health

Fregum$11.1494 rev

2mo ago

Gsbnjuy 6 Pcs Soft Interdental Brushes Small-Head Orthodontic Toothbrush Teeth Detail Cleaning Brush Toothbrush with Interdental and Teeth Brush Heads for Two in One Double Brace Single

Gsbnjuy$6.7331 rev

10mo ago

SMILE SAVER 360 Therapeutic Gum Massage for Bleeding Gums Sensitivity TMJ & Bruxism Smile Anti-Aging: Spa Treatment for Your Smile Morning Massage for Healthy Gums - Made in America

SMILE SAVER$22.443 rev

1y ago

Tondiamo 10 Pcs Gum Stimulator Dental Tools Dental Plaque Remover Rubber Tip Stimulator for Cleaning Teeth Tartar

Tondiamo$8.9081 rev

2y ago

GUM Stimulator Permanent Handle with Rubber Tip Long-Handled Stimulator & Plaque Remover for Teeth Health 1 Handle + 2 Refill Packs

GUM$10.011,626 rev

3y ago

What buyers say about sulcabrush

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

What buyers love

Quality-Overall22%

“The piece itself is well-made”

Value For Money13%

“Great deal”

Oral Hygiene12%

“Definitely recommend for better oral hygiene”

Advertised Vs Actual Product9%

“Works as expected”

Ease Of Use9%

“Easy to use”

Efficiency6%

“Effective”

Brush Quality4%

“I brush my teeth well”

Size-Overall4%

“Good fit,”

Strength3%

“The mirror is clear, and the pick and scaler feel sturdy and precise”

Ease Of Cleaning3%

“over time was able to clean up really good on my own”

What buyers complain about

Size-Overall13%

“Doesnt fit”

Hard Feel9%

“Rough material”

Durability9%

“they come off with use”

Quality-Overall9%

“Horrible quality”

Ease Of Use8%

“Unusable”

Strength7%

“even feel flimsy”

Functionality-Overall5%

“Didn't work for me”

Ease Of Cleaning5%

“no matter what I did with a regular toothbrush it did not get that part clean like these”

Value For Money4%

“Waste of money”

Sharpness4%

“The scraper has sharp edges on all side including backside so it can be rough on the gums when scraping tooth surface”

Top return reasons

Size-Overall19%

Advertised Vs Actual Product18%

Functionality-Overall10%

Material Quality6%

Quality-Overall5%

Sharpness5%

Strength5%

Value For Money5%

Product Condition4%

Oral Hygiene3%

Common questions

Is sulcabrush profitable to sell on Amazon United States?: The niche generates $273K/yr across 16 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +9.9%. Flapen's verdict: Worth a look (53/100).
How competitive is the sulcabrush niche?: 9 brands and 30 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in sulcabrush?: Top complaints mined from reviews: Size-Overall, Hard Feel, Durability. The return rate is 0.5%.
When does demand for sulcabrush peak?: Demand peaks in Feb–Mar–Apr–May–Jun; the busiest month runs 3.1× the quietest.
What does it cost to enter the sulcabrush niche?: Listings span $4.62–$26.62; the average listing price is $12.71 (sweet spot $15–$100). The average incumbent carries 2,398 reviews — the moat a new listing must climb.