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polygel brush

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Prices mostly outside the sweet spot ($3.84–$10.07) — this niche doesn't clear our bar today.

Market size 26Growth 26Conversion 74Competition 43Returns 97Price range 0Avg price 18Brand share 71Review moat 50Quality gap 38

Returns

Incredible0.6%

return rate — above 6% kills the launch gate

Conversion

Good6.8%

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

Brand share

Good63%

top-5 brand share — brands hold most of the demand

Review moat

Good1,499

avg incumbent reviews — the moat a new listing must climb

Competition

Okay59%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$104K

$104K/yr · 238K searches

Growth

Okay+0.6%

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

Avg price

Bad$6.41

avg listing price — sweet spot $15–$100

Price range

Bad$3.84–$10.07

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

Competition

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 falling

Sellers

26

Top-5 brand share

63%

Open market

31%

  • JEONEKID25%
  • KADS14%
  • Haphnbm9%
  • FULINJOY8%
  • Vanfa7%
  • siyuwuro6%

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%$10K20%$21K30%$31K40%$42K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 22 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +0.6% search growth over the last 90 days.
6K4KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Reviews

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

What buyers love

Quality-Overall28%

“Excellent product”

Brush Quality16%

“Great assortment of brushes very good quality”

Value For Money13%

“Great Value for money”

Advertised Vs Actual Product9%

“as advertised”

Ease Of Use6%

“Easy to use”

Design-Overall4%

“Very nice nail design tools”

Ease Of Cleaning3%

“Everything cleans up easily”

Durability2%

“they are durable”

Efficiency2%

“it works very well”

Gifting Purpose2%

“It was a gift”

What buyers complain about

Quality-Overall16%

“Bad quality”

Durability16%

“breaks easily”

Brush Quality7%

“Brushes were all broken”

Material Quality5%

“Cheap extremely lightweight plastic”

Adhesion/Stickiness5%

“it was sticky”

Value For Money4%

“Waste of money”

Size-Overall4%

“Bottles are a lot smaller than expected”

Moist/Dry2%

“get dry and crusty no matter how well you clean them”

Ease Of Use2%

“I was not able to use them”

Defective Material/Parts2%

“the brush part fell off”

Top return reasons

Size-Overall21%
Quality-Overall16%
Functionality-Overall9%
Advertised Vs Actual Product9%
Brush Quality8%
Defective Material/Parts7%
Value For Money5%
Product Condition4%
Ease Of Use3%
Durability2%