thinx period underwear for teen girls
Skip itSoft demand (-4.1% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$25.72avg listing price — sweet spot $15–$100
Price range
Great$11.01–$53.89cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Great38%top-5 click share — an open shelf
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay1,740.36avg incumbent reviews — the moat a new listing must climb
Returns
Okay4.5%return rate — above 6% kills the launch gate
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Conversion
Okay2.1%search→purchase rate — share of searches ending in a sale
Market size
Bad$98K$98K/yr · 186K searches
Growth
Bad-4.1%90-day search growth — must beat 0% to launch
Competition
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.Brands
13 rising
Sellers
20
Top-5 brand share
86%
Open market
10%
- Hanes26%
- Thinx Teens24%
- Demifill19%
- Mesachy13%
- Nalwort4%
- INNERSY4%
- Open — no brand owns it (7 brands, 10%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 47 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Demifill Teen Girls Period Panties Juniors First Period Starter Underwear Soft Briefs 12-14Years
Demifill$21.194.4★4,942 rev
Mesachy Teens Girls Period Underwear Kids Period Panties Menstrual Leakproof Protective Underwear for Teens Cotton Briefs
Mesachy$17.764.5★1,468 rev
Hanes Girls Hipster Period Underwear Comfort Period. Panties Moderate Protection 6-Pack
Hanes$20.514.4★1,146 rev
Hanes Girls Period Underwear Comfort Period. Hipster Panty Moderate Protection Period Panties 4-Pack
Hanes$13.434.6★2,786 rev
Thinx Teens Period Underwear Brief-Style Period Panties for Teens Holds Up to Regular 12 Tampons* Period Panties Reusable 3-Pack - (2) Black + (1) Hot Pink Size 15/16
Thinx Teens$52.764.6★519 rev
Newest
by launch date
Thinx Teens Period Underwear Bikini-Style Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Desert Camo X-Large
Thinx Teens$18.062 rev
Thinx Teens Period Underwear Overnight Boyshort Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Black Large
Thinx Teens$28.451 rev
Thinx Teens Period Underwear Bikini-Style Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Desert Camo Medium
Thinx Teens$17.822 rev
Thinx Teens Period Underwear Overnight Boyshort Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Black Medium
Thinx Teens$28.121 rev
Hanes Girls Period Underwear Boxer Briefs Comfort Period Boxer Brief Panties for Girls Moderate Protection
Hanes$24.761,146 rev
Trending
90-day click momentumThinx Teens Period Underwear Overnight Boyshort Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Black Medium
Thinx Teens$28.124.0★
Thinx Teens Period Underwear Bikini-Style Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Desert Camo X-Large
Thinx Teens$18.065.0★
Thinx Teens Period Underwear Bikini-Style Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Desert Camo Medium
Thinx Teens$17.825.0★
Thinx Teens Period Underwear Overnight Boyshort Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Black Large
Thinx Teens$28.454.0★
Hanes Girls Period Underwear Boxer Briefs Comfort Period Boxer Brief Panties for Girls Moderate Protection
Hanes$24.254.4★
Demand & seasonality
Weekly Amazon search volume, last 66 weeks — -4.1% search growth over the last 90 days.Peak months: Mar, Nov · busiest ÷ quietest = 2.7×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Super comfortable”
“These panties are very well made”
“True to size and description”
“wash well too”
“Worth it”
“Nice and thick”
“Value & Softness”
“Cute colors”
“I love the material”
“the design is cute”
What buyers complain about
“Sizing is tricky”
“Not comfortable”
“NOT ABSORBENT”
“Do not work”
“False advertising”
“A little thicker than normal underwear”
“I expected more for the price”
“Poor quality material”
“cause chafing on my daughter's skin”
“Cheaply made”