chemo
Skip itA small market ($62K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Avg price
Great$17.29avg listing price — sweet spot $15–$100
Price range
Great$4.67–$49.36cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good48%top-5 click share — leaders hold, buyers still browse
Brand share
Good71%top-5 brand share — brands hold most of the demand
Conversion
Okay3.9%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Okay+0.1%90-day search growth — must beat 0% to launch
Review moat
Bad4,094.22avg incumbent reviews — the moat a new listing must climb
Market size
Bad$62K$62K/yr · 91K searches
According to Flapen's Amazon United States niche tracking, chemo is a $62K/yr Amazon United States market (91K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Aug. Verdict: Skip it — 47/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
chemo market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- $52K–$69K
- units × avg price
- Conversion rate
- 3.9%
- Avg BSR
- #3,392
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 97%
- Out of stock
- 0.1%
- Avg brand age
- 49 months
- Avg seller age
- 161 days
Competition & brand share
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.Brands
20 falling
Sellers
70
Top-5 brand share
71%
Top 20: 100%
Top-5 click share
48%
Top 20: 87%
Open market
25%
- Deyeek33%
- Sea-Band15%
- CAPLORD11%
- FujLoy9%
- White Ink Apothecary3%
- tummy drops3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +0.1% search growth over the last 90 days.Peak months: Aug · busiest ÷ quietest = 11.4×
Top chemo search terms
- chemotherapy must haves for men30K/yr
- chemo must haves for men21K/yr
- chemotherapy16K/yr
- must haves for chemo9K/yr
- chemo radiation must haves5K/yr
- chemotherapy essentials8K/yr
- things to prepare for chemo3K/yr
Top chemo products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Sea-Band Anti-Nausea Motion Sickness Bracelets 1 Pair Gray
Sea-Band$8.364.2★31,275 rev
CAPLORD Chemo Headwrap for Women Turban Headwear for Cancer Patients Skull Cap Hair Loss Cover Lightweight Head Covering Hat
CAPLORD$14.764.4★1,290 rev
Dyeek Chemo for Shirt Port Access Chemotherapy Must Haves Tear Away Side Snap Short Sleeve Post Shoulder Surgery Shirts
Deyeek$19.844.8★373 rev
Deyeek Chemo Port Shirts for Men Post Shoulder Surgery Recovery Shirts Tear Away Zipper Shirt Chemotherapy Must Haves Grey
Deyeek$21.014.6★612 rev
Cancer Socks Cancer Patients Must Have Survivor Merchandise Chemotherapy Must Haves For Women And Men. (In This Family (Black) Cotton)
FujLoy$13.644.8★529 rev
Newest
by launch date
AJOHC Chemo Port Recovery Shirt for Men & Women|2-Side Zippers with Assist for Easy On/OffShoulder Surgery & Chemo Must-Have Black X-Large
AJOHC$17.9565 rev
Dyeek Chemo for Shirt Port Access Chemotherapy Must Haves Tear Away Side Snap Short Sleeve Post Shoulder Surgery Shirts
Deyeek$19.84373 rev
Dyeek Chemo for Shirt Port Access Chemotherapy Must Haves Tear Away Side Snap Short Sleeve Post Shoulder Surgery Shirts
Deyeek$19.92373 rev
CAPLORD Chemo Headwrap for Women Turban Headwear for Cancer Patients Skull Cap Hair Loss Cover Lightweight Head Covering Hat
CAPLORD$14.761,290 rev
White Ink Apothecary Chemo Side Effect Relief! Aromatherapy Nausea Essential Oil Nasal Inhaler!
White Ink Apothecary$14.80252 rev
Trending
90-day click momentumAJOHC Chemo Port Recovery Shirt for Men & Women|2-Side Zippers with Assist for Easy On/OffShoulder Surgery & Chemo Must-Have Black X-Large
AJOHC$17.954.7★
Dyeek Chemo for Shirt Port Access Chemotherapy Must Haves Tear Away Side Snap Short Sleeve Post Shoulder Surgery Shirts
Deyeek$19.924.8★
Deyeek Chemo Port Shirts for Men Post Shoulder Surgery Recovery Shirts Tear Away Zipper Shirt Chemotherapy Must Haves Grey
Deyeek$21.404.6★
Dyeek Chemo for Shirt Port Access Chemotherapy Must Haves Tear Away Side Snap Short Sleeve Post Shoulder Surgery Shirts
Deyeek$19.844.8★
CAPLORD Chemo Headwrap for Women Turban Headwear for Cancer Patients Skull Cap Hair Loss Cover Lightweight Head Covering Hat
CAPLORD$14.764.4★
What buyers say about chemo
What buyers praise and complain about, mined from review topics.What buyers love
“It really helps to hydrate”
“Best quality”
“It's a very effective product”
“Fits well”
“these things come in handy”
“Pleasant taste”
“Soft and nice”
“Works as advertised”
“Super Comfortable”
“Good value”
What buyers complain about
“Small side”
“Just not effective for me personally”
“Not Moisture”
“Strong smell”
“It also felt a bit thinner than expected”
“Pricey”
“But the measurements is off”
“break really easy”
“Garbage junk”
“itchy after awhile”
Top return reasons
Common questions
- Is chemo profitable to sell on Amazon United States?
- The niche generates $62K/yr across 32 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +0.1%. Flapen's verdict: Skip it (47/100).
- How competitive is the chemo niche?
- 20 brands and 70 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 71% of demand.
- What do buyers complain about in chemo?
- Top complaints mined from reviews: Size-Overall, Functionality-Overall, Moist/Dry. The return rate is 0.4%.
- When does demand for chemo peak?
- Demand peaks in Aug; the busiest month runs 11.4× the quietest.
- What does it cost to enter the chemo niche?
- Listings span $4.67–$49.36; the average listing price is $17.29 (sweet spot $15–$100). The average incumbent carries 4,094 reviews — the moat a new listing must climb.