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harry potter nail polish

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Brand-locked demand (top 5 brands take 99% of clicks) — this niche doesn't clear our bar today.

Market size 3Growth 18Conversion 10Competition 39Returns 96Price range 54Avg price 57Brand share 2Review moat 71Quality gap 40

Returns

Incredible0.8%

return rate — above 6% kills the launch gate

Review moat

Good675.88

avg incumbent reviews — the moat a new listing must climb

Avg price

Good$12.89

avg listing price — sweet spot $15–$100

Price range

Good$5.85–$25.54

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Okay61%

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

Growth

Bad-14.7%

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

Conversion

Bad0.8%

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

Market size

Bad$14K

$14K/yr · 139K searches

Brand share

Bad99%

top-5 brand share — brand-locked demand

Competition

The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 rising

Sellers

22

Top-5 brand share

99%

Open market

0%

  • Orly93%
  • Glamnetic2%
  • Get Trend2%
  • LUV HER1%
  • Morovan1%
  • Sally Hansen1%

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%5%$70010%$1K15%$2K20%$3K101001K10K 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

Weekly Amazon search volume, last 33 weeks — -14.7% search growth over the last 90 days.
7K5KSpike '26Nov '25Dec '25Feb '26Mar '26Apr '26May '26Jun '26

Reviews

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

What buyers love

Color37%

“Colors are beautiful”

Brightness/Shine/Glow11%

“great shine”

Quality-Overall6%

“This nail polish is so much nicer that I was expecting”

Advertised Vs Actual Product5%

“as advertised”

Durability5%

“Fun and durable”

Stitch/Finish/Polish4%

“Great quality polish stays on”

Gifting Purpose4%

“Cute gift”

Value For Money4%

“Great value for the money”

Moist/Dry3%

“it doesn't dry out my nails”

Strength2%

“Very sturdy”

What buyers complain about

Color18%

“colors much darker than advertised”

Durability8%

“Doesnt last”

Brightness/Shine/Glow6%

“Don't waste your $ Will not glow no matter what I do”

Smell6%

“Chemical smell”

Quality-Overall6%

“No the greatest nail polish”

Size-Overall5%

“Brush too wide”

Thickness5%

“Comes out too thick”

Advertised Vs Actual Product5%

“Doesnt look like the pictures at all extremely miss leading”

Value For Money4%

“Its a little expensive for the job it does”

Ease Of Use2%

“difficult to get on”

Top return reasons

Color36%
Advertised Vs Actual Product17%
Size-Overall12%
Functionality-Overall5%
Quality-Overall4%
Thin3%
Paint Quality2%
Defective Material/Parts2%
Material Quality2%
Strap/String Quality2%