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glass nail polish

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Brand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.

Market size 22Growth 28Conversion 25Competition 88Returns 88Price range 69Avg price 31Brand share 6Review moat 25Quality gap 76

Competition

Great27%

top-5 click share — an open shelf

Returns

Great1.3%

return rate — above 6% kills the launch gate

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Price range

Good$5.48–$36.01

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

Avg price

Okay$9.67

avg listing price — sweet spot $15–$100

Growth

Okay+2.2%

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

Conversion

Okay2.0%

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

Review moat

Bad4,881.47

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$89K

$89K/yr · 456K searches

Brand share

Bad98%

top-5 brand share — brand-locked demand

Competition

Clicks spread well past the top 5 (27% combined) — an open shelf where new products get seen.

Brands

8 falling

Sellers

15

Top-5 brand share

98%

Open market

1%

  • Born Pretty86%
  • modelones5%
  • beetles Gel Polish4%
  • GAOY2%
  • RARJSM1%
  • MAYCHAO1%
  • Open — no brand owns it (2 brands, 1%)

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%3%$3K6%$5K9%$8K12%$11K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 72 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 66 weeks — +2.2% search growth over the last 90 days.
60K40KPrime Day '25Black Friday '25AprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Jul, Aug, Sep, Oct, Nov · busiest ÷ quietest = 8.5×

Reviews

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

What buyers love

Color39%

“Vivid colors”

Quality-Overall10%

“The bottle looks good quality”

Ease Of Use5%

“Easy to use”

Value For Money4%

“Good for price”

Brightness/Shine/Glow4%

“Bright”

Ease Of Application3%

“Good application”

Stitch/Finish/Polish3%

“The matte finish also does exactly what it is supposed to do”

Advertised Vs Actual Product3%

“Exactly what I ordered”

Durability3%

“its holding up well”

Paint Quality2%

“Nice to paint nails with”

What buyers complain about

Color28%

“Not the right color”

Advertised Vs Actual Product10%

“False advertisement”

Thickness7%

“Gel is too thick”

Functionality-Overall5%

“DOESNT WORK”

Quality-Overall4%

“Bad quality”

Size-Overall4%

“Bottles too small”

Adhesion/Stickiness3%

“The bad: it's glue”

Value For Money3%

“not for the price”

Moist/Dry3%

“did not dry properly”

Durability3%

“Did not last”

Top return reasons

Color49%
Advertised Vs Actual Product16%
Functionality-Overall6%
Size-Overall3%
Thickness3%
Leak-Proof3%
Quality-Overall3%
Paint Quality2%
Moist/Dry2%
Defective Material/Parts2%