dynamo
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$28.63avg listing price — sweet spot $15–$100
Price range
Great$10.29–$92.88cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Conversion
Good6.9%search→purchase rate — share of searches ending in a sale
Market size
Okay$151K$151K/yr · 77K searches
Review moat
Okay3,844.6avg incumbent reviews — the moat a new listing must climb
Growth
Bad-3.5%90-day search growth — must beat 0% to launch
Competition
Bad87%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, dynamo is a $151K/yr Amazon United States market (77K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 46/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
dynamo market data
- Units sold / yr
- 4K–5K
- avg 250–500/product
- Revenue / yr
- $115K–$143K
- units × avg price
- Conversion rate
- 6.9%
- Avg BSR
- #786
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 0%
- Out of stock
- 0.0%
- Avg brand age
- 74 months
- Avg seller age
- 165 days
Competition & brand share
The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 falling
Sellers
20
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
87%
Top 20: 100%
Open market
0%
- Screaming O83%
- Promescent7%
- adidas5%
- K-Y3%
- Marucci2%
Demand
Weekly Amazon search volume, last 38 weeks — -3.5% search growth over the last 90 days.Top dynamo search terms
- dynamo31K/yr
- dynamo delay numbing spray21K/yr
- dynamo delay11K/yr
- dinamo9K/yr
- dynamo delay spray4K/yr
Top dynamo 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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Dynamo Delay Desensitizing Spray for Men to Help You Last Longer in Bed - Reduces Oversensitivity Prolong Climax for Him Metered Dose 0.75 Fl Oz
Screaming O$14.364.2★835 rev
Dynamo Delay Desensitizing Spray for Men to Help You Last Longer in Bed - Reduces Oversensitivity Prolong Climax for Him Metered Dose 0.75 Fl Oz (2 Pack)
Screaming O$22.424.3★534 rev
Dynamo Delay Desensitizing Spray for Men to Help You Last Longer in Bed - Reduces Oversensitivity Prolong Climax for Him Metered Dose 0.75 Fl Oz (3 Pack)
Screaming O$29.454.3★534 rev
Promescent Desensitizing Delay Spray for Men Clinically Proven to Help You Last Longer in Bed - Better Maximized Sensation + Prolong Climax for Him 2.6 ml
Promescent$23.653.9★16,533 rev
Dynamo Delay Travel Size Spray for Men 13% Lidocaine Formula to Help You Last Longer in Bed Compact Climax Control 6 mL Pocket Size
Screaming O$10.293.3★47 rev
Newest
by launch date
adidas Womens Houston Dynamo Pre-Game Short Sleeve Soccer T-Shirt Collegiate Orange/Houston Dynamo Medium
adidas$12.1012 rev
adidas Mens Houston Dynamo Local Pop Short Sleeve Pre-game T-shirt Black Large
adidas$16.78219 rev
Dynamo Delay Travel Size Spray for Men 13% Lidocaine Formula to Help You Last Longer in Bed Compact Climax Control 6 mL Pocket Size
Screaming O$10.2947 rev
Dynamo Delay Desensitizing Spray for Men to Help You Last Longer in Bed - Reduces Oversensitivity Prolong Climax for Him Metered Dose 0.75 Fl Oz (2 Pack)
Screaming O$22.42534 rev
Dynamo Delay Desensitizing Spray for Men to Help You Last Longer in Bed - Reduces Oversensitivity Prolong Climax for Him Metered Dose 0.75 Fl Oz (5 Pack)
Screaming O$44.71534 rev
Trending
90-day click momentumadidas Mens Houston Dynamo Local Pop Short Sleeve Pre-game T-shirt Black Large
adidas$16.784.3★
adidas Womens Houston Dynamo Pre-Game Short Sleeve Soccer T-Shirt Collegiate Orange/Houston Dynamo Medium
adidas$12.104.0★
Marucci Dynamo BAT Pack White/Black
Marucci$92.884.8★
Dynamo Delay Desensitizing Spray for Men to Help You Last Longer in Bed - Reduces Oversensitivity Prolong Climax for Him Metered Dose 0.75 Fl Oz (2 Pack)
Screaming O$22.424.3★
Dynamo Delay Desensitizing Spray for Men to Help You Last Longer in Bed - Reduces Oversensitivity Prolong Climax for Him Metered Dose 0.75 Fl Oz (3 Pack)
Screaming O$29.454.3★
What buyers say about dynamo
What buyers praise and complain about, mined from review topics.What buyers love
“Works well”
“Great product”
“Just as advertised”
“Extends enjoyment and greatly enhances pleasure for the both of us”
“Buying three pack is extremely good value for money”
“I love this spray”
“it didn't take too long”
“Effective”
“Easy to Use”
“It did nothing on me it just worked like any other lubricant”
What buyers complain about
“Didn't work”
“Strong smell”
“Absolutely garbage I used 20 spays nothing dont waste your money”
“Doesnt have the strength of the last time”
“Too expensive”
“Didn't work as advertised”
“It would be nicer if the container size were a bit larger”
“kinda hard to open the top”
“a lot got wasted”
“Or doesnt last long enough”
Top return reasons
Common questions
- Is dynamo profitable to sell on Amazon United States?
- The niche generates $151K/yr across 10 tracked products. 90-day search growth is -3.5%. Flapen's verdict: Skip it (46/100).
- How competitive is the dynamo niche?
- 5 brands and 20 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in dynamo?
- Top complaints mined from reviews: Functionality-Overall, Smell, Quality-Overall. The return rate is 0.0%.
- What does it cost to enter the dynamo niche?
- Listings span $10.29–$92.88; the average listing price is $28.63 (sweet spot $15–$100). The average incumbent carries 3,845 reviews — the moat a new listing must climb.