dr nefario costume
Skip itA small market ($40K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$23.64avg listing price — sweet spot $15–$100
Price range
Great$7.67–$82.33cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good4.7%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay3,294.3avg incumbent reviews — the moat a new listing must climb
Brand share
Bad90%top-5 brand share — brand-locked demand
Growth
Bad-11.7%90-day search growth — must beat 0% to launch
Returns
Bad6.9%return rate — above 5% kills the launch gate
Competition
Bad84%top-5 click share — a locked-up shelf
Market size
Bad$40K$40K/yr · 36K searches
According to Flapen's Amazon United States niche tracking, dr nefario costume is a $40K/yr Amazon United States market (36K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 31/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
dr nefario costume market data
- Units sold / yr
- 1K–2K
- avg 100–250/product
- Revenue / yr
- $30K–$35K
- units × avg price
- Conversion rate
- 4.7%
- Avg BSR
- #1,504
- Page quality
- 0%
- Prime
- 90%
- Sponsored
- 70%
- Out of stock
- 21.4%
- Avg brand age
- 55 months
- Avg seller age
- 211 days
Competition & brand share
The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 falling
Sellers
25
Top-5 brand share
90%
Top 20: 100%
Top-5 click share
84%
Top 20: 100%
Open market
6%
- SATINIOR52%
- Fun Costumes20%
- WEICHUAN7%
- VOGRYE6%
- ROYAKI5%
- BendyFigs4%
- Open — no brand owns it (2 brands, 6%)
Demand & seasonality
Weekly Amazon search volume, last 84 weeks — -11.7% search growth over the last 90 days.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 77.7×
Top dr nefario costume search terms
- dr nefario costume26K/yr
- dr nefario3K/yr
- dr nefario costume adult7K/yr
Top dr nefario costume 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
SATINIOR 6 Pieces Mad Scientist Costume Adult Lab Coat Brown Costume Back to The Future Man Wig Goggles Props(X-Large)
SATINIOR$29.424.6★231 rev
Adult Dr. Nefario Costume | Mens Despicable Me Movie Grus Gadgeteer Supervillain Outfit with Lab Coat Mask Pants Gloves Large
Fun Costumes$82.334.7★19 rev
SATINIOR 6 Pieces Mad Scientist Costume Adult Lab Coat Brown Costume Back to The Future Man Wig Goggles Props(3X-Large)
SATINIOR$30.124.6★231 rev
WEICHUAN Vintage Steampunk Goggles Mad Scientist Goggles Cosplay Punk Glasses for Adult Women Men Halloween Costume(Black)
WEICHUAN$7.674.6★3,924 rev
ROYAKI Chemical Resistant Gloves Work Heavy Duty Industrial Rubber Gloves 12.2 1 Pair Size Medium
ROYAKI$7.764.2★2,825 rev
Newest
by launch dateAdult Dr. Nefario Costume | Mens Despicable Me Movie Grus Gadgeteer Supervillain Outfit with Lab Coat Mask Pants Gloves Large
Fun Costumes$82.3319 rev
BendyFigs Minions Dr. Nefario
BendyFigs$16.2653 rev
SATINIOR 6 Pieces Mad Scientist Costume Adult Lab Coat Brown Costume Back to The Future Man Wig Goggles Props(X-Large)
SATINIOR$29.42231 rev
SATINIOR 6 Pieces Mad Scientist Costume Adult Lab Coat Brown Costume Back to The Future Man Wig Goggles Props(3X-Large)
SATINIOR$30.12231 rev
ROYAKI Chemical Resistant Gloves Work Heavy Duty Industrial Rubber Gloves 12.2 1 Pair Size Medium
ROYAKI$7.762,825 rev
Trending
90-day click momentumSATINIOR 6 Pieces Mad Scientist Costume Adult Lab Coat Brown Costume Back to The Future Man Wig Goggles Props(3X-Large)
SATINIOR$30.124.6★
SATINIOR 6 Pieces Mad Scientist Costume Adult Lab Coat Brown Costume Back to The Future Man Wig Goggles Props(X-Large)
SATINIOR$29.424.6★
Rubies Alien Egg Cap Headpiece for Adults Unisex No Size
Rubies$25.444.3★
BendyFigs Minions Dr. Nefario
BendyFigs$16.264.6★
TamBee Black Steampunk Goggles Costume Cosplay Goggle Mad Scientist Goggles - Round Goggle Black Lens Elastic Band for Halloween Party Adult Women Men
TamBee$7.884.5★
What buyers say about dr nefario costume
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“Fits well”
“price was right”
“The VOGRYE lab coat is comfortable and stylish, ideal for professionals”
“No tears, or holes so far”
“Nice color”
“flexible too”
“Good use, feels good, cant complain”
“As described”
“Great heavier gloves”
What buyers complain about
“Cheaply made”
“The cone was just much smaller than expected”
“they punctured within two months”
“Very thin”
“the literally melted leaving black stains on anything i touched”
“Thought I was buying a NEW product. Came scratched and already used.”
“They are a bit thicker than the latex gloves I use for non caustic projects”
“Same problem just more expensive”
“wrinkly and see through”
“Poor quality material”
Top return reasons
Common questions
- Is dr nefario costume profitable to sell on Amazon United States?
- The niche generates $40K/yr across 10 tracked products. 90-day search growth is -11.7%. Flapen's verdict: Skip it (31/100).
- How competitive is the dr nefario costume niche?
- 8 brands and 25 sellers compete. The top 5 products take 84% of clicks and top 5 brands hold 90% of demand.
- What do buyers complain about in dr nefario costume?
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Durability. The return rate is 6.9% — above our launch gate.
- When does demand for dr nefario costume peak?
- Demand peaks in Sep–Oct–Nov; the busiest month runs 77.7× the quietest.
- What does it cost to enter the dr nefario costume niche?
- Listings span $7.67–$82.33; the average listing price is $23.64 (sweet spot $15–$100). The average incumbent carries 3,294 reviews — the moat a new listing must climb.