Hydroeye
Worth a lookShows low returns (0.0%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible18.7%search→purchase rate — share of searches ending in a sale
Market size
Incredible$3.4M$3.4M/yr · 315K searches
Avg price
Great$57.49avg listing price — sweet spot $15–$100
Price range
Good$17.94–$171.46cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Bad4,399avg incumbent reviews — the moat a new listing must climb
Growth
Bad-6.5%90-day search growth — must beat 0% to launch
Competition
Bad97%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Is hydroeye profitable on Amazon?
According to Flapen's Amazon United States niche tracking, hydroeye is a $3.4M/yr Amazon United States market (315K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Sep. Verdict: Worth a look — 51/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
hydroeye market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 50K–60K
- avg 10,000–12,500/product
- Revenue / yr
- $2.9M–$3.4M
- units × avg price
- Conversion rate
- 18.7%
- Avg BSR
- #79
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 77 months
- Avg seller age
- 147 days
Competition: brands, sellers & click share
The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 rising
Sellers
21
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
97%
Top 20: 100%
Open market
0%
- BLINK56%
- ScienceBased Health27%
- PRN Physician Recommended Nutriceuticals14%
- TheraTears3%
- Open — no brand owns it (0%)
hydroeye demand & seasonality
Weekly Amazon search volume, last 97 weeks — -6.5% search growth over the last 90 days.Peak months: Aug, Sep · busiest ÷ quietest = 5.2×
Top hydroeye search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- hydroeye38K/yr
- blink nutritears34K/yr
- blink supplements for dry eye26K/yr
- blink eye supplement30K/yr
- hydroeye support for dry eyes 120 softgels 2 pack20K/yr
- de3 omega 3 fish oil capsules for dry eye19K/yr
- blink nutritears supplement27K/yr
- prn de3 dry eye omega 3 fish oil15K/yr
- de311K/yr
- blink pills for dry eye13K/yr
Top hydroeye products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 6 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Blink NutriTears Clinically Proven Supplement for Dry Eyes Eye Care with Lutein & Zeaxanthin and Vitamin D to Hydrate Eyes from Within for Long-Lasting Relief 50 Softgels
BLINK$26.924.3★4,439 rev
ScienceBased Health HydroEye Dry Eye Supplement Clinically Tested with GLA & Omega-3 Supports a Healthy Tear Film for Lasting Eye Comfort 120 Softgels
ScienceBased Health$43.574.6★7,099 rev
De3 Occasional Eye Dryness rTG Omega 3 Supplement - 90 Softgels 30-Day Supply - Fish Oil Omega 3 Supplements for Hydrated Eyes - 1680 mg EPA & 560 mg DHA & Vitamin D3 for Soothing Tears & Eye Health
PRN Physician Recommended Nutriceuticals$65.224.6★1,846 rev
Blink NutriTears by Bausch + Lomb Dry Eye Supplement Clinically Proven Hydration Support for Dry Eyes Omega & Vitamin Formula 30 Softgels (30-Day Supply)
BLINK$17.944.3★4,439 rev
De3 Occasional Eye Dryness rTG Omega 3 Supplement - 270 Softgels 90-Day Supply - Fish Oil Omega 3 Supplements for Hydrated Eyes - 1680 mg EPA 560 mg DHA & Vitamin D3 for Soothing Tears & Eye Health
PRN Physician Recommended Nutriceuticals$171.464.6★1,846 rev
Newest
by launch dateBlink NutriTears by Bausch + Lomb Dry Eye Supplement Clinically Proven Hydration Support for Dry Eyes Omega & Vitamin Formula 30 Softgels (30-Day Supply)
BLINK$17.944,439 rev
Blink NutriTears Clinically Proven Supplement for Dry Eyes Eye Care with Lutein & Zeaxanthin and Vitamin D to Hydrate Eyes from Within for Long-Lasting Relief 50 Softgels
BLINK$26.924,439 rev
TheraTears Omega 3 Supplement for Eye Care 1200mg Fish Oil and Organic Flaxseed Oil with Vitamin E 180 Count
TheraTears$19.826,725 rev
De3 Occasional Eye Dryness rTG Omega 3 Supplement - 90 Softgels 30-Day Supply - Fish Oil Omega 3 Supplements for Hydrated Eyes - 1680 mg EPA & 560 mg DHA & Vitamin D3 for Soothing Tears & Eye Health
PRN Physician Recommended Nutriceuticals$65.221,846 rev
De3 Occasional Eye Dryness rTG Omega 3 Supplement - 270 Softgels 90-Day Supply - Fish Oil Omega 3 Supplements for Hydrated Eyes - 1680 mg EPA 560 mg DHA & Vitamin D3 for Soothing Tears & Eye Health
PRN Physician Recommended Nutriceuticals$171.461,846 rev
Trending
90-day click momentumBlink NutriTears by Bausch + Lomb Dry Eye Supplement Clinically Proven Hydration Support for Dry Eyes Omega & Vitamin Formula 30 Softgels (30-Day Supply)
BLINK$17.944.3★
De3 Occasional Eye Dryness rTG Omega 3 Supplement - 90 Softgels 30-Day Supply - Fish Oil Omega 3 Supplements for Hydrated Eyes - 1680 mg EPA & 560 mg DHA & Vitamin D3 for Soothing Tears & Eye Health
PRN Physician Recommended Nutriceuticals$65.224.6★
ScienceBased Health HydroEye Dry Eye Supplement Clinically Tested with GLA & Omega-3 Supports a Healthy Tear Film for Lasting Eye Comfort 120 Softgels
ScienceBased Health$43.574.6★
De3 Occasional Eye Dryness rTG Omega 3 Supplement - 270 Softgels 90-Day Supply - Fish Oil Omega 3 Supplements for Hydrated Eyes - 1680 mg EPA 560 mg DHA & Vitamin D3 for Soothing Tears & Eye Health
PRN Physician Recommended Nutriceuticals$171.464.6★
Blink NutriTears Clinically Proven Supplement for Dry Eyes Eye Care with Lutein & Zeaxanthin and Vitamin D to Hydrate Eyes from Within for Long-Lasting Relief 50 Softgels
BLINK$26.924.3★
What reviews say buyers love and hate about hydroeye
What buyers praise and complain about, mined from review topics.What buyers love
“Helpful for dry eyes”
“Helps relieve dry eye”
“Top quality product thats is easy to swallow and works well”
“Less expensive”
“Effective”
“Great Eye Vitamins”
“Accurately described”
“Easy to use”
“Easy on stomach”
“didnt cause me any side effects”
What buyers complain about
“Didn't Work for Me”
“Overpriced”
“Overly dry”
“the bottle is a just shy of a 2 month supply so you should see a difference before you finish the first bottle”
“Stopped the vitamin”
“Its making me nauseous”
“Its making me nauseous”
“Bottle is way too big”
“Ingredients not strong enough to really do anything”
“now that I see your quality control is garbage I'll just stick with my eye plugs from the doctor”
Top return reasons
Common hydroeye questions
- Is hydroeye profitable to sell on Amazon United States?
- The niche generates $3.4M/yr across 6 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -6.5%. Flapen's verdict: Worth a look (51/100).
- How competitive is the hydroeye niche?
- 4 brands and 21 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in hydroeye?
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Moist/Dry. The return rate is 0.0%.
- When does demand for hydroeye peak?
- Demand peaks in Aug–Sep; the busiest month runs 5.2× the quietest.
- What does it cost to enter the hydroeye niche?
- Listings span $17.94–$171.46; the average listing price is $57.49 (sweet spot $15–$100). The average incumbent carries 4,399 reviews — the moat a new listing must climb.