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41

black and white gel nail polish

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Prices mostly outside the sweet spot ($5.98–$11.43) — this niche doesn't clear our bar today.

Market size 36Growth 29Conversion 95Competition 24Returns 97Price range 0Avg price 23Brand share 17Review moat 24Quality gap 48

Returns

Incredible0.6%

return rate — above 6% kills the launch gate

Conversion

Great11.9%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$177K

$177K/yr · 181K searches

Growth

Okay+3.0%

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

Competition

Bad71%

top-5 click share — a locked-up shelf

Review moat

Bad5,854.31

avg incumbent reviews — the moat a new listing must climb

Avg price

Bad$8.22

avg listing price — sweet spot $15–$100

Brand share

Bad93%

top-5 brand share — brand-locked demand

Price range

Bad$5.98–$11.43

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

Competition

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 flat

Sellers

10

Top-5 brand share

93%

Open market

4%

  • GAOY37%
  • beetles Gel Polish33%
  • Double Rhythm9%
  • modelones7%
  • JODSONE7%
  • CANNI3%
  • Open — no brand owns it (2 brands, 4%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$18K20%$35K30%$53K40%$71K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +3.0% search growth over the last 90 days.
5K4KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr · busiest ÷ quietest = 1.7×

Reviews

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

What buyers love

Color32%

“The colors are beautiful”

Quality-Overall16%

“Good products, reasonable price”

Value For Money9%

“Great for the price”

Stitch/Finish/Polish5%

“The finish looks professional”

Coverage5%

“Excellent coverage”

Soft Feel3%

“It goes on smooth”

Ease Of Use3%

“easy to use”

Size-Overall2%

“they are a good size”

Brightness/Shine/Glow2%

“it gives a nice shine”

Efficiency2%

“Works pretty well for what I use it for”

What buyers complain about

Thickness19%

“Thick”

Color12%

“Very pigmented”

Moist/Dry9%

“The black does not dry well at all”

Quality-Overall9%

“Very thin and not good quality”

Adhesion/Stickiness7%

“However the White literally wont stick it just separates on the nail constantly”

Allergies6%

“Allergic reaction”

Wrinkles5%

“if you apply enough so that it doesnt streak it wrinkles in the uv light when curing”

Value For Money3%

“Expensive”

Leak-Proof3%

“The bottle leaks too, very disappointed”

Ease Of Use2%

“it is not as easy to use as some other gel polishes I have tried”

Top return reasons

Color16%
Functionality-Overall14%
Advertised Vs Actual Product8%
Thickness7%
Leak-Proof7%
Quality-Overall5%
Paint Quality4%
Size-Overall4%
Texture/Consistency-Overall4%
Moist/Dry4%