cefaly
Skip itWeak search conversion (1.2%) — this niche doesn't clear our bar today.
Price range
Great$12.83–$97.76cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$56.24avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Returns
Okay4.5%return rate — above 6% kills the launch gate
Market size
Bad$94K$94K/yr · 143K searches
Brand share
Bad91%top-5 brand share — brand-locked demand
Review moat
Bad6,912.33avg incumbent reviews — the moat a new listing must climb
Growth
Bad-6.2%90-day search growth — must beat 0% to launch
Competition
Bad80%top-5 click share — a locked-up shelf
Conversion
Bad1.2%search→purchase rate — share of searches ending in a sale
Competition
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 falling
Sellers
18
Top-5 brand share
91%
Open market
7%
- HeadaTerm67%
- RENPHO11%
- TLINNA5%
- JAN & JUL4%
- comrelax4%
- Comfytemp3%
- Open — no brand owns it (3 brands, 7%)
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 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
HeadaTerm-2 Migraine Relief Device e-TNS Technology Rechargeable Head Cap Treatment for migraine and Headache Drug-Free Clinically Proven Fast-Acting No Side Effects (1* HeadaTerm 2 +6*Electrodes)
HeadaTerm$97.763.8★199 rev
HeadaTerm-2 Migraine Relief Device e-TNS Technology Rechargeable Head Cap Treatment for migraine and Headache Drug-Free Clinically Proven Fast-Acting No Side Effects (1* HeadaTerm 2 +3*Electrodes)
HeadaTerm$82.103.8★199 rev
TLINNA Head Massager Scalp Massager Relief Headaches Fatigue Stress Sleep aid Hangover with Airbag Kneading Constant Temperature Hot Compress for Head (Sky Blue)
TLINNA$54.284.5★424 rev
JAN & JUL Adjustable Neck Flap Wide Brim Hat Toddler with UV Protection (L: 2-5T Purple)
JAN & JUL$22.794.8★2,193 rev
RENPHO Eye Massager with Heat FSA Eligible HSA Gifts for Men Women Eyeris 1 Eye Massager with Remote Sleep Mask for Relieves Head Tension Soothe & Refresh Enhance Rest White
RENPHO$53.804.4★17,782 rev
Newest
by launch dateTLINNA Head Massager Scalp Massager Relief Headaches Fatigue Stress Sleep aid Hangover with Airbag Kneading Constant Temperature Hot Compress for Head (Sky Blue)
TLINNA$54.28424 rev
TENS 7000 Migraine Relief Device Migraine Relief Wearable for Migraines and Migraa Drug-Free Pain Relief Product
TENS 7000$89.104 rev
comrelax Head Massager for Headaches Eye Massager with Heat Electric Rechargeable Head and Eye Massage Tool for Stress Relief Migraine Relief Massager for Forehead 6 Zone Kneading
comrelax$66.6261 rev
HeadaTerm-2 Migraine Relief Device e-TNS Technology Rechargeable Head Cap Treatment for migraine and Headache Drug-Free Clinically Proven Fast-Acting No Side Effects (1* HeadaTerm 2 +3*Electrodes)
HeadaTerm$82.10199 rev
HeadaTerm-2 Migraine Relief Device e-TNS Technology Rechargeable Head Cap Treatment for migraine and Headache Drug-Free Clinically Proven Fast-Acting No Side Effects (1* HeadaTerm 2 +6*Electrodes)
HeadaTerm$97.76199 rev
Trending
90-day click momentumJAN & JUL Adjustable Neck Flap Wide Brim Hat Toddler with UV Protection (L: 2-5T Purple)
JAN & JUL$22.794.8★
sticro Form Fitting Heated Headache Cap 3 Temp Settings Steam Migraine Hat Heated Eye Mask for Dry Eyes Sinus Pressure Relief Tension Headache (Large)
sticro$30.894.4★
TLINNA Head Massager Scalp Massager Relief Headaches Fatigue Stress Sleep aid Hangover with Airbag Kneading Constant Temperature Hot Compress for Head (Sky Blue)
TLINNA$54.284.5★
Comfytemp Wireless TENS Unit Machine for Pain Relief FSA Eligible TENS Unit Muscle Stimulator with 2 Sets 30 Modes HSA TENS Device for Back Rechargeable Portable with APP Control Fathers Day Gift
Comfytemp$36.194.3★
TENS 7000 Migraine Relief Device Migraine Relief Wearable for Migraines and Migraa Drug-Free Pain Relief Product
TENS 7000$89.102.9★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -6.2% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Very good product works as described”
“the massage feels amazing”
“Soothing”
“Great value”
“Works well”
“Easy to use”
“Great for addressing dry eye”
“it helps me go to sleep faster”
“The heat feels soothing”
“Comfortable fit”
What buyers complain about
“it barely worked”
“Straight out of the box it wont charge”
“Doesnt last”
“The massage is uncomfortable”
“Battery doesn't last”
“Smells like chemicals”
“Waste of money”
“Heat Broke after few months”
“Its almost impossible to turn on”
“No pain relief”