---
title: "thinx period underwear for teen girls — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/thinx-period-underwear-for-teen-girls"
last_updated: "2026-07-13T20:54:37.959Z"
locale: en
meta:
  description: "soft demand (-4.1% this quarter) — thinx period underwear for teen girls doesn't clear our bar today."
  "og:description": "soft demand (-4.1% this quarter) — thinx period underwear for teen girls doesn't clear our bar today."
  "og:title": "thinx period underwear for teen girls — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **thinx period underwear for teen girls**

**Skip it**

Soft demand (-4.1% this quarter) — this niche doesn't clear our bar today.

Market size 25Growth 23Conversion 26Competition 77Returns 37Price range 88Avg price 95Brand share 31Review moat 48Quality gap 48

**Avg price**

**Incredible****$25.72**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$11.01–$53.89**

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

**Competition**

**Great****38%**

top-5 click share — an open shelf

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Okay****1,740.36**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Okay****4.5%**

return rate — above 6% kills the launch gate

**Brand share**

**Okay****86%**

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

**Conversion**

**Okay****2.1%**

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.

0%3%$3K6%$6K9%$9K12%$12K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 47 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Demifill Teen Girls Period Panties Juniors First Period Starter Underwear Soft Briefs 12-14Years](https://m.media-amazon.com/images/I/41qGhKkk2GL.jpg)**Demifill Teen Girls Period Panties Juniors First Period Starter Underwear Soft Briefs 12-14Years**Demifill**$21.19**4.4★4,942 rev](https://www.amazon.com/dp/B09N1F5YV3) [2![Mesachy Teens Girls Period Underwear Kids Period Panties Menstrual Leakproof Protective Underwear for Teens Cotton Briefs](https://m.media-amazon.com/images/I/411KozYilVL.jpg)**Mesachy Teens Girls Period Underwear Kids Period Panties Menstrual Leakproof Protective Underwear for Teens Cotton Briefs**Mesachy**$17.76**4.5★1,468 rev](https://www.amazon.com/dp/B0BWH9TDPM) [3![Hanes Girls Hipster Period Underwear Comfort Period. Panties Moderate Protection 6-Pack](https://m.media-amazon.com/images/I/41GYK6-bRrL.jpg)**Hanes Girls Hipster Period Underwear Comfort Period. Panties Moderate Protection 6-Pack**Hanes**$20.51**4.4★1,146 rev](https://www.amazon.com/dp/B0CVS6LBM9) [4![Hanes Girls Period Underwear Comfort Period. Hipster Panty Moderate Protection Period Panties 4-Pack](https://m.media-amazon.com/images/I/41f6ez8QPGL.jpg)**Hanes Girls Period Underwear Comfort Period. Hipster Panty Moderate Protection Period Panties 4-Pack**Hanes**$13.43**4.6★2,786 rev](https://www.amazon.com/dp/B0B9P19TM3) [5![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](https://m.media-amazon.com/images/I/31MSQXBSBhL.jpg)**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**$52.76**4.6★519 rev](https://www.amazon.com/dp/B0D382PKRT)

**~~View all top sellers →~~**

### **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](https://m.media-amazon.com/images/I/41oDWHGVViL.jpg)**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**$18.06**2 rev4mo ago](https://www.amazon.com/dp/B0GK38HF4F) [![Thinx Teens Period Underwear Overnight Boyshort Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Black Large](https://m.media-amazon.com/images/I/3109oYSpvfL.jpg)**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**$28.45**1 rev4mo ago](https://www.amazon.com/dp/B0GK2MKVWF) [![Thinx Teens Period Underwear Bikini-Style Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Desert Camo Medium](https://m.media-amazon.com/images/I/41oDWHGVViL.jpg)**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**$17.82**2 rev4mo ago](https://www.amazon.com/dp/B0GK2LHT6T) [![Thinx Teens Period Underwear Overnight Boyshort Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Black Medium](https://m.media-amazon.com/images/I/3109oYSpvfL.jpg)**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**$28.12**1 rev4mo ago](https://www.amazon.com/dp/B0GK2J36DG) [![Hanes Girls Period Underwear Boxer Briefs Comfort Period Boxer Brief Panties for Girls Moderate Protection](https://m.media-amazon.com/images/I/31EG3HKkBhL.jpg)**Hanes Girls Period Underwear Boxer Briefs Comfort Period Boxer Brief Panties for Girls Moderate Protection**Hanes**$24.76**1,146 rev9mo ago](https://www.amazon.com/dp/B0FRGMKJ2C)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Thinx Teens Period Underwear Overnight Boyshort Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Black Medium](https://m.media-amazon.com/images/I/3109oYSpvfL.jpg)**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**$28.12**4.0★**▲ 86%**](https://www.amazon.com/dp/B0GK2J36DG) [![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](https://m.media-amazon.com/images/I/41oDWHGVViL.jpg)**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**$18.06**5.0★**▲ 86%**](https://www.amazon.com/dp/B0GK38HF4F) [![Thinx Teens Period Underwear Bikini-Style Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Desert Camo Medium](https://m.media-amazon.com/images/I/41oDWHGVViL.jpg)**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**$17.82**5.0★**▲ 86%**](https://www.amazon.com/dp/B0GK2LHT6T) [![Thinx Teens Period Underwear Overnight Boyshort Period Panties for Teens Holds Up to 12 Regular Tampons Leakproof Reusble and Controls Odor Black Large](https://m.media-amazon.com/images/I/3109oYSpvfL.jpg)**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**$28.45**4.0★**▲ 85%**](https://www.amazon.com/dp/B0GK2MKVWF) [![Hanes Girls Period Underwear Boxer Briefs Comfort Period Boxer Brief Panties for Girls Moderate Protection](https://m.media-amazon.com/images/I/31EG3HKkBhL.jpg)**Hanes Girls Period Underwear Boxer Briefs Comfort Period Boxer Brief Panties for Girls Moderate Protection**Hanes**$24.25**4.4★**▲ 79%**](https://www.amazon.com/dp/B0FRGFV2Q9)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 66 weeks — -4.1% search growth over the last 90 days.

4K3KPrime Day '25Spike '25Black Friday '25Spike '26 seasonAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Mar, Nov · busiest ÷ quietest = 2.7×

## **Reviews**

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

### **What buyers love **

**Comfort-Overall**25%

*“Super comfortable”*

**Quality-Overall**17%

*“These panties are very well made”*

**Size-Overall**16%

*“True to size and description”*

**Washability**5%

*“wash well too”*

**Value For Money**4%

*“Worth it”*

**Thickness**4%

*“Nice and thick”*

**Soft Feel**3%

*“Value & Softness”*

**Color**2%

*“Cute colors”*

**Material Quality**2%

*“I love the material”*

**Design-Overall**2%

*“the design is cute”*

### **What buyers complain about **

**Size-Overall**14%

*“Sizing is tricky”*

**Comfort-Overall**14%

*“Not comfortable”*

**Absorbency**10%

*“NOT ABSORBENT”*

**Functionality-Overall**8%

*“Do not work”*

**Advertised Vs Actual Product**7%

*“False advertising”*

**Thickness**6%

*“A little thicker than normal underwear”*

**Value For Money**3%

*“I expected more for the price”*

**Material Quality**3%

*“Poor quality material”*

**Allergies**3%

*“cause chafing on my daughter's skin”*

**Quality-Overall**3%

*“Cheaply made”*

### **Top return reasons **

**Size-Overall**69%

**Waist Fit**6%

**Material Quality**4%

**Advertised Vs Actual Product**3%

**Thigh Fit**2%

**Thin**2%

**Comfort-Overall**1%

**Length**1%

**Absorbency**1%

**Thickness**1%