ketotifen eye drops
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible28.4%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.0%return rate — above 6% kills the launch gate
Market size
Great$1.5M$1.5M/yr · 330K searches
Avg price
Great$16.54avg listing price — sweet spot $15–$100
Price range
Good$11.99–$19.42cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-0.3%90-day search growth — must beat 0% to launch
Review moat
Bad6,983.33avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Competition
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
2 flat
Sellers
46
Top-5 brand share
100%
Open market
0%
- Zaditor60%
- Alcon40%
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 3 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Newest
by launch dateDemand & seasonality
Weekly Amazon search volume, last 104 weeks — -0.3% search growth over the last 90 days.Peak months: Mar, Apr, May · busiest ÷ quietest = 2.7×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Good for allergies”
“Great for eye related allergies”
“Takes away the itch”
“Works great”
“It's very easy to use”
“Good price for its bottle”
“This helped to reduce inflammation”
“Works just as good as a script”
“Decent for the job”
“Life saver; eye drops take care of allergy eyes”
What buyers complain about
“an allergy pill”
“The size is small”
“That actually makes things worse”
“".and/or hydrochloric acid" has ".and/or hydrochloric acid" as preservative ingredient”
“It is too stiff”
“I notice i still slightly have dry eyes”
“A little expensive for the size”