period
Worth a lookShows low returns (0.3%), but weak search conversion (1.3%) keeps it on the watch list.
Returns
Incredible0.3%return rate — above 6% kills the launch gate
Competition
Great26%top-5 click share — an open shelf
Brand share
Great46%top-5 brand share — no brand owns this niche
Avg price
Great$18.11avg listing price — sweet spot $15–$100
Price range
Good$1.94–$46.24cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$115K$115K/yr · 481K searches
Review moat
Bad5,157.95avg incumbent reviews — the moat a new listing must climb
Growth
Bad-3.3%90-day search growth — must beat 0% to launch
Conversion
Bad1.3%search→purchase rate — share of searches ending in a sale
Competition
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.Brands
59 falling
Sellers
714
Top-5 brand share
46%
Open market
49%
- Hanes16%
- Pixie Cup11%
- Midol8%
- Always6%
- OLLY6%
- Bambody5%
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 99 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
OLLY Period Hero Gummies PMS Support Supplement * Chasteberry Vitamin B6 Calcium Cran-Raspberry Flavor 30 Day Supply - 60 Count
OLLY$14.334.3★398 rev
Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack
Hanes$14.484.1★6,272 rev
Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack
Hanes$14.614.1★6,272 rev
Bambody Absorbent Period Panties - Bamboo Rayon - Period Underwear for Women and Teens - All-Day Long - Overnight Protection- Leakproof - Large - 3 Pack: Black
Bambody$34.084.4★12,173 rev
Always ZZZ Overnight Disposable Period Underwear for Women Small/Medium 360 Coverage for Worry-Free Nights 14 Count (2 Packs of 7)
Always$15.754.6★8,283 rev
Newest
by launch date
RFOGJV Period Underwear for Women Teens Leak-Proof Menstrual Cotton Protective Hipster Panties 3 Pack Black M
RFOGJV$24.83375 rev
Feminine Wipes for Women Flushable pH Balanced Wipes 99% Water & Aloe Unscented Gentle Intimate & Period Care with Odor Protection Daily Hygiene & Travel Essentials 8 Pack 48 Wipes
MOONIES$9.73200 rev
Heating Pad for Period Cramps Upgraded Wrap Heating Pad for Back Pain Relief Large 12x 24Heat Pad +26 Belt Adjustable 4 Timer 6 Heat Level Auto Shut Off Christmas Birthday Gifts for Women Mom
vilicert$31.06440 rev
INNERSY Womens Bikini Period Underwear Cotton Menstrual Leakproof Panties 3-Pack(Charcoal Blend Medium)
INNERSY$24.94125 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 momentumRFOGJV Period Underwear for Women Teens Leak-Proof Menstrual Cotton Protective Hipster Panties 3 Pack Black M
RFOGJV$24.834.4★
YESWEL Period Underwear For Women Leak-Proof Hipster Brief Heavy Flow 3 Pack (Large Multicolor04)
YESWEL$19.224.4★
Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack
Hanes$14.294.1★
Hanes Womens Comfort Period. Boxer Briefs Super Leak Post-Partum & Period Underwear 2-Pack
Hanes$14.484.1★
ALLBASE Heavy Flow Period Underwear for Women Overnight Protective Leakproof Menstrual Underwear Ladies High Absorbency Cotton Hipster Panties Large 3 Pack
ALLBASE$27.714.2★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -3.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.7×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Perfect, good variety”
“Comfortable and durable”
“fit true to size”
“Money well spent”
“Good scent”
“Amazing tea”
“Easy to put in”
“Silky Smooth”
“Works well”
“Exactly as shown”
What buyers complain about
“Didn't fit”
“Didn't work”
“Weird smell”
“Barely warm”
“Too expensive”
“Durability is not good”
“Skin irritation”
“Disgusting taste”
“They leak”
“Made me immediately sick”