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nyk1 eyelash serum

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A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Market size 5Growth 28Conversion 75Competition 0Returns 95Price range 86Avg price 95Brand share 0Review moat 15Quality gap 87

Returns

Incredible1.0%

return rate — above 6% kills the launch gate

Avg price

Incredible$29.91

avg listing price — sweet spot $15–$100

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Price range

Great$11.71–$42.43

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

Conversion

Good6.9%

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

Growth

Okay+2.1%

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

Review moat

Bad21,811

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$20K

$20K/yr · 9K searches

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Competition

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

1 falling

Sellers

5

Top-5 brand share

100%

Open market

0%

  • NYK1100%

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%$3K30%$6K45%$9K60%$12K1K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 5 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +2.1% search growth over the last 90 days.
500300Prime Day '24Spike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan · busiest ÷ quietest = 1.4×

Reviews

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

What buyers love

Adhesion/Stickiness49%

“glue sticks well”

Durability8%

“Lasts a while and so durable”

Quality-Overall6%

“Very reliable”

Ease Of Application6%

“Application is easy”

Ease Of Use4%

“Ease of use”

Efficiency4%

“It works very well”

Value For Money3%

“Good price”

Moist/Dry3%

“Dries fast”

Advertised Vs Actual Product2%

“As advertised”

Brush Quality1%

“I like the brush feature”

What buyers complain about

Adhesion/Stickiness28%

“doesn't adhere well at all”

Durability16%

“Does not last”

Strength10%

“Weak”

Functionality-Overall8%

“Didnt work well”

Value For Money5%

“expensive”

Quality-Overall3%

“Absolute garbage”

Size-Overall2%

“The bottle is a bit small”

Grip2%

“Does not hold”

Allergies2%

“an awful rash”

Moist/Dry2%

“Take forever to dry”

Top return reasons

Adhesion/Stickiness53%
Functionality-Overall15%
Advertised Vs Actual Product4%
Durability4%
Value For Money4%
Leak-Proof3%
Size-Overall3%
Defective Material/Parts3%
Strength2%
Moist/Dry2%