Period Underwear Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Period Underwear sales on Amazon US totaled 171,700 units in July 2026 (▼ 4.0% vs. the prior month), generating an estimated $3,537,712 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 67.0% of unit volume and 64.6% of revenue, while a typical listing is priced at $20.13. The keyword itself pulled 132,480 Amazon queries over the same period (▼ 25.2% MoM).
Zooming out to the 12-month window ending July 2026, the period underwear Top 50 moved 1,631,800 units and $32,846,668 in cumulative sales — an average of 135,983 units and $2,737,222 per month. Monthly throughput topped out at 178,500 units in June 2026 and dipped to 82,100 in May 2026, leaving the latest reading 49.4% higher than August 2025.
Period Underwear Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
171.7K
▼ 4.0% MoM
Monthly Revenue 2026/07
$3.5M
▼ 2.4% MoM
Top 10 Market Share 2026/07
67.0%
Period Underwear Market Share & Sales Concentration on Amazon US — July 2026
The most-sold period underwear listing on Amazon US in July 2026 is ASIN B00KXUW72G (Brand: Always Discreet), which sold 30,000 units at $19.39 apiece — equal to 17.5% of every unit tracked in this report and 1.5× the volume of the No. 2 listing.
The Top 10 ASINs account for 115,000 units and $2,284,060 in July 2026 — 67.0% of unit volume and 64.6% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Period Underwear' on Amazon
July 2026
Is 67.0% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B00KXUW72G
Always Discreet Adult Diapers for Women, Incontinence Underwear, Postpartum Essentials, Disposable Briefs, Max Absorbency, Bladder Leak Protection, Small/Medium, 32ct
30K
▲ 0.0%vs. prior month
$582.6K
latest month
12-month trend
B0792P353P
Depend Depend Fresh Protection Adult Diapers for Women, Medium, 30 Count
20K
▲ 0.0%vs. prior month
$429.6K
latest month
12-month trend
B08VCP6QLD
Always Always ZZZ Overnight Disposable Period Underwear for Women Small/Medium, 360° Coverage for Worry-Free Nights, 14 Count (2 Packs of 7)
10K
▲ 0.0%vs. prior month
$159.8K
latest month
12-month trend
B0B834SHYC
Rael Disposable Period Underwear, Organic Cotton Cover (Size S-M, 20 Ct) | Leak Locker, Unscented, Extended Coverage for Women, Period Essentials, Postpartum Essentials, Feminine Care
10K
▲ 0.0%vs. prior month
$269.9K
latest month
12-month trend
B0B836FZFB
Rael Disposable Period Underwear, Organic Cotton Cover (Size L-XL, 20 Ct) | Leak Locker, Unscented, Extended Coverage for Women, Period Essentials, Postpartum Essentials, Feminine Care
9K
▼ 10.0%vs. prior month
$250.2K
latest month
12-month trend
B08VCJS1MX
Always Always ZZZ Overnight Disposable Period Underwear for Women, Large, 360° Coverage for Worry-Free Nights, 14 Count (2 Packs of 7)
9K
▲ 0.0%vs. prior month
$143.8K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Period Underwear Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Always Discreet is the best-performing period underwear brand in July 2026, moving 30,000 units across 1 ASIN for 26.1% of Top 10 volume. Always follows with 27,000 units (23.5%), ahead of Rael on 26,000 units (22.6%).
With 6 brands splitting the Top 10 and 72.2% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $15.97 to $24.72, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Always Discreet
1 ASIN in Top 10
26.1%
Units
30K
Revenue
$582.6K
Avg. price
$19.39
B00KXUW72G
$19.39·★4.4·43.2K revsAlways Discreet Adult Diapers for Women, Incontinence Underwear, Postpartum Essentials, Disposable Briefs, Max Absorbency, Bladder Leak Protection, Small/Medium, 32ct
Units sold30K
Always
3 ASINs in Top 10
23.5%
Units
27K
Revenue
$431.1K
Avg. price
$15.97
B08VCP6QLD
$15.98·★4.5·8.5K revsAlways Always ZZZ Overnight Disposable Period Underwear for Women Small/Medium, 360° Coverage for Worry-Free Nights, 14 Count (2 Packs of 7)
Units sold10KB08VCJS1MX
$15.98·★4.5·8.5K revsAlways Always ZZZ Overnight Disposable Period Underwear for Women, Large, 360° Coverage for Worry-Free Nights, 14 Count (2 Packs of 7)
Units sold9KB0CSTCH3WZ
$15.94·★4.5·8.5K revsAlways ZZZ Overnight Disposable Period Underwear for Women Extra Large/2LX, 360° Coverage for Worry-Free Nights, 14 Count (2 Packs of 7)
Units sold8K
Rael
3 ASINs in Top 10
22.6%
Units
26K
Revenue
$654.4K
Avg. price
$24.72
B0B834SHYC
$26.99·★4.7·5.9K revsRael Disposable Period Underwear, Organic Cotton Cover (Size S-M, 20 Ct) | Leak Locker, Unscented, Extended Coverage for Women, Period Essentials, Postpartum Essentials, Feminine Care
Units sold10KB0B836FZFB
$27.99·★4.7·5.9K revsRael Disposable Period Underwear, Organic Cotton Cover (Size L-XL, 20 Ct) | Leak Locker, Unscented, Extended Coverage for Women, Period Essentials, Postpartum Essentials, Feminine Care
Units sold9KB091JGY2YP
$19.18·★4.7·5.9K revsRael Disposable Period Underwear, Organic Cotton Cover (Size S-M, 12 Ct) | Leak Locker, Unscented, Extended Coverage for Women, Period Essentials, Postpartum Essentials, Feminine Care
Units sold7K
Trending Period Underwear Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B093WPMHR6 booked 6K units at $14.81, with ▲ 20.0% MoM change. On the growth side, B0BWHJF5WV leads positive momentum with ▲ 100.0% MoM growth on 2K units, with B0CP8PRYGB close behind at ▲ 100.0% MoM on 2K units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B093WPMHR6
Amazon Basics Postpartum Incontinence Underwear for Women, Maximum Absorbency with Bladder Leak Protection, Fresh Protection, Disposable, Large, Lavender, 18 Count
Price
$14.81
Rating
4.3
Reviews
21.5K
Latest month sales
B0BWHJF5WV
Teens Girls Period Underwear Kids Period Panties Menstrual Leakproof Protective Underwear for Teens Cotton Briefs
Price
$26.99
Rating
4.4
Reviews
1.7K
Latest month sales
B0CP8PRYGB
Always Discreet Boutique Incontinence and Postpartum Underwear for Women, Maximum Protection, Large, Black, 18 Count
Unlock to view ASIN details and product titles
Price
$21.47
Rating
4.5
Reviews
28.8K
Latest month sales
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