period pills
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 6% kills the launch gate
Conversion
Incredible16.9%search→purchase rate — share of searches ending in a sale
Market size
Good$496K$496K/yr · 246K searches
Avg price
Okay$11.91avg listing price — sweet spot $15–$100
Price range
Okay$5.62–$22.58cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+0.1%90-day search growth — must beat 0% to launch
Review moat
Bad5,141avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Competition
Bad93%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Competition
The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 flat
Sellers
51
Top-5 brand share
100%
Open market
0%
- Pamprin89%
- Midol7%
- HealthA2Z4%
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 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Pamprin Multi-Symptom Formula with Acetaminophen Menstrual Period Symptoms Relief including Cramps Pain Bloating and Irritability 40 Caplets
Pamprin$6.994.7★10,286 rev
Pamprin Maximum Strength Max Pain and Energy Formula Menstrual Period Symptoms Relief for Cramps Bloating and Fatigue 24 Caplets
Pamprin$5.624.8★4,135 rev
Midol Complete Menstrual Pain Relief Caplets 40 Count - Provides Cramp Headache and Bloating Relief
Midol$8.254.8★19,404 rev
Pamprin Maximum Strength Multi-Symptom Menstrual Relief Tablets 40-Count Boxes (Pack of 3)
Pamprin$22.584.8★691 rev
Pamprin Maximum Strength Formula 24 Caplets (Pack of 3)
Pamprin$19.474.8★439 rev
Newest
by launch date
Pamprin Heat Relief Menstrual Patches for Portable Menstrual Pain Relief of Cramps and Backaches 3 Count
Pamprin$9.53132 rev
HealthA2Z Menstrual Complete Pain Relief Tablets | Relieves Cramps Bloating Fatigue Backache & Headache (120 Counts)
HealthA2Z$10.94900 rev
Pamprin Maximum Strength Max Pain and Energy Formula Menstrual Period Symptoms Relief for Cramps Bloating and Fatigue 24 Caplets
Pamprin$5.624,135 rev
Pamprin Maximum Strength Formula 24 Caplets (Pack of 3)
Pamprin$19.47439 rev
Pamprin Maximum Strength Multi-Symptom Menstrual Relief Tablets 40-Count Boxes (Pack of 3)
Pamprin$22.58691 rev
Trending
90-day click momentumPamprin Maximum Strength Formula 24 Caplets (Pack of 3)
Pamprin$19.474.8★
Pamprin Multi-Symptom Formula with Acetaminophen Menstrual Period Symptoms Relief including Cramps Pain Bloating and Irritability 40 Caplets
Pamprin$6.994.7★
Midol Complete Menstrual Pain Relief Caplets 40 Count - Provides Cramp Headache and Bloating Relief
Midol$8.254.8★
Pamprin Maximum Strength Max Pain and Energy Formula Menstrual Period Symptoms Relief for Cramps Bloating and Fatigue 24 Caplets
Pamprin$5.624.8★
HealthA2Z Menstrual Complete Pain Relief Tablets | Relieves Cramps Bloating Fatigue Backache & Headache (120 Counts)
HealthA2Z$10.944.8★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +0.1% search growth over the last 90 days.Peak months: Jul, Aug, Sep, Oct, Nov · busiest ÷ quietest = 5.8×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“They do relieve menstrual pain”
“Works great and does so much more”
“relaxes my muscles through that time of the month”
“Best price”
“no complaints so far”
“Pretty handy and useful I would recommend”
“If you can remember to take it before you go to bed then your symptoms will be substantially lessened”
“I appreciate that it's a complete formula addressing multiple symptoms rather than just one”
“These also helped me with my lower back pain”
“Love the caffeine additive”
What buyers complain about
“It doesnt help”
“Does not heat up”
“The pill is a bit big”
“It gave me brain fog, exhaustion, sleepiness, low mood, I couldn't function normally, symptoms that I chalked up to my monthly period even though I didn't have them previously”
“Doesnt really seem to help with cramps”
“Just different prices”
“be warned—it also causes some pretty bad constipation which leads to pain of another kind”
“I took 2 pills for over 1.5 not even a relief”
“It helps, might not be 25 hours relief”
“Garbage”