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48

kose

Skip it

A concentrated shelf (top 5 take 88% of clicks) — this niche doesn't clear our bar today.

Market size 56Growth 41Conversion 96Competition 10Returns 97Price range 61Avg price 74Brand share 14Review moat 46Quality gap 18

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Conversion

Incredible13.5%

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

Avg price

Good$14.88

avg listing price — sweet spot $15–$100

Price range

Good$9.20–$24.05

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

Market size

Good$409K

$409K/yr · 203K searches

Review moat

Okay1,898.13

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+13.1%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Brand share

Bad95%

top-5 brand share — brand-locked demand

Competition

Bad88%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, kose is a $409K/yr Amazon United States market (203K searches/yr). The top 5 brands hold 95% of demand. Verdict: Skip it — 48/100.

Data updated Jul 16, 2026 · scored weekly · How we score niches

kose market data

Units sold / yr
20K–25K
avg 2,000–2,500/product
Revenue / yr
$298K–$372K
units × avg price
Conversion rate
13.5%
Avg BSR
#492
Page quality
0%
Prime
100%
Sponsored
0%
Out of stock
5.6%
Avg brand age
52 months
Avg seller age
133 days

Competition & brand share

The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

21

Top-5 brand share

95%

Top 20: 100%

Top-5 click share

88%

Top 20: 100%

Open market

0%

  • Thunder Tech50%
  • Kose15%
  • softymo14%
  • Generic9%
  • HAKOCO7%
  • MEGURISM5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +13.1% search growth over the last 90 days.
10K6KHoliday '24Prime Day '25Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top kose search terms

  • kose softymo speedy cleansing oil49K/yr
  • softymo cleansing oil50K/yr
  • softymo22K/yr
  • speedy cleansing oil14K/yr
  • softymo speedy cleansing oil9K/yr
  • kose cleansing oil12K/yr
  • japanese oil cleanser10K/yr
  • japanese cleansing oil9K/yr
  • kose speedy cleansing oil6K/yr
  • japanese makeup remover5K/yr
All search terms

Top kose 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.

0%15%$61K30%$123K45%$184K60%$245K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 8 tracked products in this niche — three views at once, no toggling.

What buyers say about kose

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

What buyers love

Cleansing24%

“This works beautifully as a makeup remover”

Value For Money12%

“Good price”

Ease Of Cleaning7%

“A good deep cleanse”

Quality-Overall7%

“Great product”

Smell6%

“fragrance-free”

Soft Feel5%

“Gentle and Effective”

Suitability Combination Skin4%

“Best thing for my skin”

Oily/Greasy3%

“very gentle oil cleaner”

Residue2%

“It does leave my face feeling nourished without any residue”

Suitability Oily Skin2%

“A Solid, Affordable Oil Cleanser, Especially for Double-Cleansing”

What buyers complain about

Ingredients-Overall7%

“because my label has different ingredients than the ones listed here”

Ease Of Cleaning6%

“I feel like it doesnt clean/remove makeup as well as this one”

Quality-Overall6%

“Total garbage that doesnt work”

Symptom Reduction6%

“have not seen improvement with any sebaceous filament / blackheads which is what I got it for”

Jamming/Clogging6%

“clogs me badly”

Suitability Oily Skin4%

“I have oily skin”

Cleansing4%

“I felt like even after double cleansing”

Allergies4%

“irritate my eyes a little if you are trying to remove makeup”

Thickness4%

“Its thicker of an oil”

Oily/Greasy3%

“Nice oil cleanser however for my face it didnt feel like its clean and oily enough”

Top return reasons

Leak-Proof19%
Functionality-Overall11%
Motor Power10%
Smell10%
Advertised Vs Actual Product10%
Thickness4%
Defective Material/Parts4%
Ingredients-Overall4%
Oily/Greasy4%
Texture/Consistency-Overall4%

Common questions

Is kose profitable to sell on Amazon United States?
The niche generates $409K/yr across 8 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +13.1%. Flapen's verdict: Skip it (48/100).
How competitive is the kose niche?
6 brands and 21 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 95% of demand.
What do buyers complain about in kose?
Top complaints mined from reviews: Ingredients-Overall, Ease Of Cleaning, Quality-Overall. The return rate is 0.5%.
When does demand for kose peak?
Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the kose niche?
Listings span $9.20–$24.05; the average listing price is $14.88 (sweet spot $15–$100). The average incumbent carries 1,898 reviews — the moat a new listing must climb.