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54

period patches for cramps

Worth a look

Shows low returns (0.4%), but soft demand (-13.4% this quarter) keeps it on the watch list.

Market size 54Growth 18Conversion 79Competition 35Returns 98Price range 55Avg price 58Brand share 45Review moat 50Quality gap 70

Returns

Incredible0.4%

return rate — above 6% kills the launch gate

Conversion

Great8.1%

search→purchase rate — share of searches ending in a sale

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good$12.99

avg listing price — sweet spot $15–$100

Price range

Good$6.21–$25.72

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

Market size

Good$370K

$370K/yr · 352K searches

Review moat

Okay1,508.88

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay78%

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

Competition

Okay64%

top-5 click share — leaders hold, buyers still browse

Growth

Bad-13.4%

90-day search growth — must beat 0% to launch

Competition

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 rising

Sellers

24

Top-5 brand share

78%

Open market

16%

  • Midol25%
  • ThermaCare19%
  • Rael16%
  • Pixie Cup12%
  • CrampCareH7%
  • FOMIN6%
  • Open — no brand owns it (7 brands, 16%)

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%10%$37K20%$74K30%$111K40%$148K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -13.4% search growth over the last 90 days.
7K5KSpike '24Prime Day '25Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Reviews

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

What buyers love

Heating Element7%

“It heated quickly”

Quality-Overall7%

“They seem well-made and work”

Efficiency6%

“effective”

Value For Money6%

“Good Price”

Size-Overall6%

“It stays in place and fits perfectly”

Comfort-Overall6%

“They are comfortable”

Ease Of Use6%

“Pretty easy to put on”

Adhesion/Stickiness5%

“Sticks very well”

Durability4%

“It's pretty durable”

Warmth4%

“the soothing warmth was greatly appreciated”

What buyers complain about

Heating25%

“Barely warm”

Functionality-Overall11%

“Didn't work”

Adhesion/Stickiness8%

“Doesnt stick well”

Value For Money8%

“Waste of money”

Warmth7%

“Does not get warm”

Heating Element4%

“doesnt heat up at all”

Size-Overall4%

“Because theyre bigger than hot hands”

Pain Relief-Overall2%

“burnt my back”

Allergies2%

“Blister”

Durability2%

“do not last”

Top return reasons

Heating46%
Functionality-Overall9%
Advertised Vs Actual Product9%
Value For Money9%
Size-Overall7%
Adhesion/Stickiness6%
Warmth3%
Product Condition2%
Heating Element1%
Comfort-Overall1%