Thinx Period Underwear
FailDemand is soft, at -11.9% this quarter, so Thinx Period Underwear is a Fail.
- Flapen Score
- 38 / 100Ranks 13,195 of 16,930 Clothing, Shoes & Jewelry niches · −7 vs the category median of 4538
- Market size
- $113K/yr345K searches / yr
- 90-day growth
- -11.9%search demand this quarter
- Competition
- 54%top-5 click share · 10 brands · 18 sellers
Flapen Score
Thinx Period Underwear against its category
The dotted line is the Clothing, Shoes & Jewelry average. Past it, Thinx Period Underwear is stronger. Inside it, weaker.
Market
The Thinx Period Underwear market on Amazon at a glance
Shoppers on Amazon United States searched for Thinx Period Underwear 345K times last year and spent an estimated $113K. The top 5 brands take 86% of clicks. Demand peaks in Jul–Aug–Sep. Flapen scores it 38 out of 100, a Fail.
01 · Demand
An estimated 1.7% of those searches ended in a purchase.
Shoppers searched for this 345K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 1.7% of those searches ended in a purchase. Searches in the last 90 days moved -11.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $113K a year.
- Searches, last 12 months
- 345K
- Growth, 90 days vs prior 90
- -11.9%
- Conversion, latest week
- 1.7%
- Market size, estimated
- $113Ka year
- Peak month
- July3.8× the quietest month
- Top search term
- girls period underwear142K searches a year
02 · Price
A sale here is worth $19.24.
Listings sell for $19.24 on average, from $11.01 to $35.07. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 250 to 500 of them. At $19.24 that is $5K to $10K a year per listing.
- Average price
- $19.24inside the $15 to $100 sweet spot
- Price range
- $11.01–$35.07
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $5K–$10K
- Returns
- 4.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
86% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 3.1% of listings are out of stock. The average listing ranks #57 within Underwear. It carries 2,826 reviews at 4.48 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 86%
- Prime listings
- 100%
- Out of stock, average day
- 3.1%
- Average rank
- #57in Underwear
- Average rating
- 4.48 starsAmazon United States average 4.42 stars
- Average reviews
- 2,826per listing
- Listings tracked
- 28
04 · Newcomers
0 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 43 months on average, so the names here are settling in.
- Launched, last 12 months
- 2
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 43 months
Products
Top Thinx Period Underwear products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 11, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Demifill Teen Girls Period Panties Juniors First Period Starter Underwear Soft Briefs 12-14Years
- Price
- $21.19
- Rating
- 4.4/5
- Reviews
- 4,942
- Age
- 4y ago

Mesachy Teens Girls Period Underwear Kids Period Panties Menstrual Leakproof Protective Underwear for Teens Cotton Briefs
- Price
- $17.76
- Rating
- 4.5/5
- Reviews
- 1,468
- Age
- 3y ago

Hanes Girls Hipster Period Underwear Comfort Period. Panties Moderate Protection 6-Pack
- Price
- $20.51
- Rating
- 4.4/5
- Reviews
- 1,146
- Age
- 2y ago

Nalwort Teen Girls Period Underwear Menstrual Period Panties Leak-Proof Cotton Protective Briefs Pack of 6(Multicolor-5 12-14 Years)
- Price
- $23.51
- Rating
- 4.5/5
- Reviews
- 9,095
- Age
- 6y ago

Mesachy Teens Girls Period Underwear Kids Period Panties Menstrual Leakproof Protective Underwear for Teens Cotton Briefs
- Price
- $21.42
- Rating
- 4.5/5
- Reviews
- 1,468
- Age
- 3y ago
Trending
estimated 90-day click momentum
Demifill Teen Girls Period Panties Juniors First Period Starter Underwear Soft Briefs 8-10Years
- Price
- $25.12
- Rating
- 4.4/5
- Reviews
- 4,942
- Age
- 4y ago

Hanes Girls Period Underwear Comfort Period. Hipster Panty Moderate Protection Period Panties 4-Pack
- Price
- $12.81
- Rating
- 4.6/5
- Reviews
- 2,786
- Age
- 3y ago

Hanes Girls Hipster Period Underwear Comfort Period. Panties Moderate Protection 6-Pack
- Price
- $20.92
- Rating
- 4.4/5
- Reviews
- 1,146
- Age
- 2y ago

Demifill Teen Girls Period Underwear Girls Cotton Briefs Soft Underwear For Teens 14Years Mixed Colour
- Price
- $16.28
- Rating
- 4.4/5
- Reviews
- 504
- Age
- 6y ago

Hanes Girls Hipster Period Underwear Comfort Period. Panties Moderate Protection 6-Pack
- Price
- $19.87
- Rating
- 4.4/5
- Reviews
- 1,146
- Age
- 2y ago
Newest
by launch date
Musort Period Underwear for Teens Heavy Flow High Absorbency Girls Menstrual Panties Cotton Leakproof Protective Briefs
- Price
- $11.01
- Rating
- 4.6/5
- Reviews
- 187
- Age
- 1y ago

TIICHOO Period Panties for Teens Seamless Menstrual Leakproof Underwear for Girls 5-Pack(10-12 Years 2 Black/Beige/Pink/Green)
- Price
- $35.07
- Rating
- 4.5/5
- Reviews
- 69
- Age
- 1y ago

INNERSY Girls Period Underwear for Teens Heavy Flow Panties Size 10-18 Hold 4 Tampons 3-Pack(L(12-14 yrs) Solid Black)
- Price
- $22.84
- Rating
- 4.3/5
- Reviews
- 94
- Age
- 1y ago

Geronmine Teen Girls Period Panties Heavy Flow High Absorbency First Period Starter Underwear For Teens Menstrual Leakproof Protective Cotton Soft Briefs
- Price
- $13.66
- Rating
- 4.6/5
- Reviews
- 529
- Age
- 2y ago

Geronmine Teen Girls Period Underwear Menstrual Leakproof Panties for First Period Starter Panty Kids Cotton Protective Brief (US Age 14 Years 16 Years Color-A)
- Price
- $15.54
- Rating
- 4.6/5
- Reviews
- 633
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 54% of clicks. Leaders hold, but buyers still shop past them.
Brands
10 falling
Sellers
18
Est. top-5 brand share
86%
Top 20: 100%
Est. top-5 click share
54%
Top 20: 90%
Open market
9%
- Demifill27%
- Mesachy22%
- Hanes22%
- Nalwort8%
- INNERSY7%
- Geronmine5%
- Open — no brand owns it (4 brands, 9%)
Demand
Thinx Period Underwear search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jul, Aug, Sep · busiest ÷ quietest = 3.8×
Search terms
Top Thinx Period Underwear search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- girls period underwear142K/yr
- period underwear for girls71K/yr
- period panties for girls26K/yr
- teen period panties68K/yr
- girls period panties16K/yr
- period underwear teens11K/yr
- teens period underwear7K/yr
- menstrual underwear for teen girls5K/yr
Reviews and returns
What reviews say buyers love and hate about Thinx Period Underwear
We read the reviews and the return reasons for every product selling here.
“Not comfortable”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Thinx Period Underwear questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









