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41

period panties for girls 10-12

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A small market ($78K/yr) — this niche doesn't clear our bar today.

Market size 20Growth 26Conversion 27Competition 56Returns 38Price range 87Avg price 90Brand share 31Review moat 43Quality gap 48

Avg price

Great$20.97

avg listing price — sweet spot $15–$100

Price range

Great$11.01–$53.28

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

Competition

Good51%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,205.06

avg incumbent reviews — the moat a new listing must climb

Returns

Okay4.4%

return rate — above 6% kills the launch gate

Brand share

Okay87%

top-5 brand share — brands hold most of the demand

Conversion

Okay2.1%

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

Growth

Okay+0.9%

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

Market size

Bad$78K

$78K/yr · 174K searches

Competition

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

20

Top-5 brand share

87%

Open market

9%

  • Hanes29%
  • Demifill28%
  • Mesachy20%
  • Nalwort5%
  • INNERSY5%
  • Geronmine5%
  • Open — no brand owns it (6 brands, 9%)

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%$4K10%$8K15%$12K20%$16K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 31 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +0.9% search growth over the last 90 days.
13K8KPrime Day '24Black Friday '24Prime Day '25Spike '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul, Aug · busiest ÷ quietest = 2.9×

Reviews

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

What buyers love

Comfort-Overall24%

“Super comfortable”

Quality-Overall20%

“These panties are very well made”

Size-Overall16%

“True to size and description”

Washability5%

“wash well too”

Thickness3%

“Nice and thick”

Value For Money3%

“Worth it”

Soft Feel3%

“Value & Softness”

Color3%

“Cute colors”

Durability2%

“Durable, easy to store”

Absorbency2%

“These are great and absorb well”

What buyers complain about

Size-Overall17%

“Sizing is tricky”

Comfort-Overall12%

“Not comfortable”

Absorbency11%

“NOT ABSORBENT”

Functionality-Overall9%

“Do not work”

Thickness7%

“A little thicker than normal underwear”

Advertised Vs Actual Product5%

“False advertising”

Material Quality4%

“Poor quality material”

Stiffness3%

“Very stiff material”

Allergies3%

“cause chafing on my daughter's skin”

Value For Money3%

“Not worth it”

Top return reasons

Size-Overall69%
Waist Fit6%
Material Quality4%
Advertised Vs Actual Product3%
Thin3%
Thigh Fit2%
Comfort-Overall1%
Absorbency1%
Length1%
Thickness1%