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opi blue 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 10Growth 82Conversion 42Competition 22Returns 100Price range 19Avg price 53Brand share 0Review moat 15Quality gap 53

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Growth

Great+76.9%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Good$12.30

avg listing price — sweet spot $15–$100

Conversion

Okay3.3%

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

Competition

Bad73%

top-5 click share — a locked-up shelf

Price range

Bad$8.75–$16.43

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

Review moat

Bad22,542.5

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$39K

$39K/yr · 95K searches

Brand share

Bad100%

top-5 brand share — brand-locked demand

Competition

The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.

Brands

1 flat

Sellers

5

Top-5 brand share

100%

Open market

0%

  • OPI100%

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%$4K20%$8K30%$12K40%$16K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +76.9% search growth over the last 90 days.
4K3KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jun, Jul · busiest ÷ quietest = 2.5×

Reviews

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

What buyers love

Color46%

“The color is a stunning”

Coverage9%

“Covers well”

Ease Of Application6%

“The brush is easy to apply”

Durability5%

“Long lasting”

Moist/Dry5%

“Dries fast,”

Brightness/Shine/Glow5%

“It kept its shine”

Quality-Overall5%

“all the strands of it were in great condition”

Soft Feel3%

“Soft blue”

Ease Of Cleaning2%

“cleaned up pretty well when I didnt think about the lid not being screwed on”

Stitch/Finish/Polish2%

“too a good durable finish”

What buyers complain about

Color17%

“Too bright and harsh”

Thickness16%

“Not happy used with thin brush”

Value For Money8%

“Yes, it's a little pricey —”

Moist/Dry7%

“Its streaky and dried lumpy”

Smell7%

“Odd Strong Smell”

Product Condition4%

“Feels like it was used”

Residue4%

“Stains nail and leaves residues on when you accidentally scratch anywhere lol, also strong smell”

Advertised Vs Actual Product4%

“not as described”

Quality-Overall4%

“Total rip off”

Coverage2%

“Thin coverage”

Top return reasons

Color100%