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lincoln park after dark nail polish

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Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 46Growth 24Conversion 61Competition 8Returns 100Price range 39Avg price 49Brand share 0Review moat 9Quality gap 32

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Conversion

Good5.3%

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

Avg price

Okay$11.84

avg listing price — sweet spot $15–$100

Market size

Okay$250K

$250K/yr · 397K searches

Price range

Okay$2.32–$23.08

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-2.5%

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

Review moat

Bad32,828

avg incumbent reviews — the moat a new listing must climb

Competition

Bad91%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Competition

The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 flat

Sellers

36

Top-5 brand share

100%

Open market

0%

  • OPI79%
  • essie14%
  • Sally Hansen6%

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%15%$37K30%$75K45%$112K60%$150K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 7 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -2.5% search growth over the last 90 days.
18K13KPrime Day '24Spike '24Black Friday '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov, Dec · busiest ÷ quietest = 5.0×

Reviews

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

What buyers love

Color58%

“Good color”

Quality-Overall9%

“Good quality, easy to apply, perfect shine, no streaks, quick-drying, shipped fast, and reasonably priced”

Value For Money5%

“Good value for money”

Stitch/Finish/Polish4%

“Im very pleased with this polish”

Advertised Vs Actual Product3%

“As described”

Durability3%

“Beautiful long lasting”

Shape/Style2%

“Perfect coalition to match your fall fashion style”

Coverage2%

“Great coverage”

Texture/Consistency-Overall2%

“The color consistency”

Ease Of Use1%

“The brush makes it easy to apply evenly if you are not a Pro like me”

What buyers complain about

Color25%

“The color is much darker”

Durability9%

“Does not last”

Advertised Vs Actual Product6%

“Not as shown”

Defective Material/Parts6%

“Damaged Product”

Size-Overall6%

“Small package”

Thickness3%

“I wish the brush could be thicker as it is very thin”

Moist/Dry3%

“Dries dark”

Quality-Overall3%

“Not a very high quality brand”

Adhesion/Stickiness2%

“the brush was not properly adhered to the top”

Product Condition2%

“Im disappointed that the product wasnt new”

Top return reasons

Color65%
Functionality-Overall18%
Advertised Vs Actual Product4%
Product Condition4%
Moist/Dry3%
Texture/Consistency-Overall3%
Thickness3%