Is girls alien costume profitable to sell on Amazon United States?

The niche generates $67K/yr across 35 tracked products. 1 of 8 products launched in the last 360 days are still selling. 90-day search growth is -35.0%. Flapen's verdict: Skip it (44/100).

How competitive is the girls alien costume niche?

21 brands and 25 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 55% of demand.

What do buyers complain about in girls alien costume?

Top complaints mined from reviews: Strength, Size-Overall, Thin. The return rate is 10.9% — above our launch gate.

When does demand for girls alien costume peak?

Demand peaks in Sep–Oct; the busiest month runs 172.1× the quietest.

What does it cost to enter the girls alien costume niche?

Listings span $10.33–$58.40; the average listing price is $26.77 (sweet spot $15–$100). The average incumbent carries 189 reviews — the moat a new listing must climb.

Girls Alien Costume

Skip it

High returns (10.9%) — this niche doesn't clear our bar today.

Avg price

Incredible$26.77

avg listing price — sweet spot $15–$100

Review moat

Great188.8

avg incumbent reviews — the moat a new listing must climb

Price range

Great$10.33–$58.40

cheapest to priciest tracked listing — scored on the share inside $15–$100

Brand share

Great55%

top-5 brand share — no brand owns this niche

Competition

Great38%

top-5 click share — an open shelf

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Conversion

Okay2.5%

search→purchase rate — share of searches ending in a sale

Market size

Bad$67K

$67K/yr · 101K searches

Growth

Bad-35.0%

90-day search growth — must beat 0% to launch

Returns

Bad10.9%

return rate — above 5% kills the launch gate

Signals High Returns

Is girls alien costume profitable on Amazon?

According to Flapen's Amazon United States niche tracking, girls alien costume is a $67K/yr Amazon United States market (101K searches/yr). The top 5 brands hold 55% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 44/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

girls alien costume market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 2K–3K; avg 0–100/product
Revenue / yr: $54K–$67K; units × avg price
Conversion rate: 2.5%
Avg BSR: #1,323
Page quality: 0%
Prime: 94%
Sponsored: 86%
Out of stock: 2.3%
Avg brand age: 34 months
Avg seller age: 183 days

Competition: brands, sellers & click share

Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.

Brands

21 rising

Sellers

Top-5 brand share

55%

Top 20: 99%

Top-5 click share

38%

Top 20: 80%

Open market

39%

Perfashion20%
Kepblom12%
IBAKOM9%
LMYOVE7%
Shekavarld7%
GRAJTCIN5%

girls alien costume demand & seasonality

Weekly Amazon search volume, last 104 weeks — -35.0% search growth over the last 90 days.

Peak months: Sep, Oct · busiest ÷ quietest = 172.1×

Open Trend

Top girls alien costume search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

girls alien costume26K/yr -22.5%0.7% conv.
alien costume girls16K/yr -54.3%1.0% conv.
inflatable alien costume kids58K/yr -31.4%0.6% conv.
blow up alien costume for kids391/yr -75.0%0.0% conv.

All search terms

Top girls alien costume 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Kepblom Girls Shiny Metallic Mock Neck Unitard Long Sleeve Zipper Back One Piece Bodysuit Costume

Kepblom$23.104.4★1,301 rev

Perfashion Alien Costume Kids Size 10-11 Silver Metallic Shorts Girls Dance Shiny Skirts Sparkly Skorts with Pockets

Perfashion$22.484.5★154 rev

Shekavarld Green Metallic Dresses for Girls Kids Holographic Party Dress Halloween Clothes 8 9 Years

Shekavarld$25.414.3★111 rev

Girl Shiny Metallic Dress Toddler Sleeveless Holographic 80s Sparkly Dance Outfits Kids Alien Space Pleated Skirt Carnival Rave Twirl Swing Dress 90s Prom Skater Mini Dress Green 5-6 Years

IBAKOM$25.074.4★55 rev

GRAJTCIN Alien Costume for Kids Space Dress Silver Metallic Robot Outfit Girls Halloween Cosplay Adventure 4PCS (M Silver)

GRAJTCIN$32.165.0★2 rev

Newest

by launch date

YONGHS Outer Space Alien Outfits for Girls Metallic Dance Dress with Headband for Future World Party Colorful Silver 8 Years

YONGHS$14.360 rev

5mo ago

GRAJTCIN Alien Costume for Kids Space Dress Silver Metallic Robot Outfit Girls Halloween Cosplay Adventure 4PCS (M Silver)

GRAJTCIN$32.162 rev

7mo ago

AGCOAH Kids Alien Costume 4PCS Silver Cosmic Galaxy Costume Girls Child Robot Outfit with Alien Glasses Halloween Cosplay S(4-5Y)

AGCOAH$31.0317 rev

11mo ago

LMYOVE Silver Girls Alien Party Costume for Kids Girls Halloween Birthday Space Themed Party Cosplay Alien Outfit(4-5Y)

LMYOVE$31.436 rev

1y ago

yolsun Alien Costume for Girls Silver Metallic Dress Halloween Robot Outfit Cosplay (Silver Small)

yolsun$32.7112 rev

1y ago

What reviews say buyers love and hate about girls alien costume

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall21%

“the fitment is perfect”

Advertised Vs Actual Product16%

“DOES THE JOB”

Quality-Overall12%

“Great quality, good battery life, and down right funny”

Ease Of Use10%

“so it truly made Halloween easier”

Inflation/Deflation8%

“Inflates quickly and easy to get on and off”

Material Quality8%

“material wise so far”

Fun/Entertainment Experience5%

“Made the night a lot of fun”

Comfort-Overall5%

“were fairly comfortable”

Durability3%

“The suits held up”

Color3%

“the outfit itself is pretty solid buy color”

What buyers complain about

Strength17%

“made of very brittle plastic”

Size-Overall17%

“every time we tried Spirit or somewhere similar they were wayyy too big”

Thin17%

“very thin material”

Durability12%

“Glasses were broke”

Material Quality8%

“They material is thick rubbery plastic”

Brightness/Shine/Glow6%

“GLITTER A LITTLE REDUNDANT”

Adhesion/Stickiness3%

“on top of that they had some tacky glitter glue where it was broke on the hinge like they knew it broke”

Top return reasons

Size-Overall55%

Length4%

Material Quality4%

Advertised Vs Actual Product4%

Product Condition3%

Functionality-Overall3%

Value For Money2%

Inflation/Deflation2%

Waist Fit2%

Shape/Style2%

Common girls alien costume questions

Is girls alien costume profitable to sell on Amazon United States?: The niche generates $67K/yr across 35 tracked products. 1 of 8 products launched in the last 360 days are still selling. 90-day search growth is -35.0%. Flapen's verdict: Skip it (44/100).
How competitive is the girls alien costume niche?: 21 brands and 25 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 55% of demand.
What do buyers complain about in girls alien costume?: Top complaints mined from reviews: Strength, Size-Overall, Thin. The return rate is 10.9% — above our launch gate.
When does demand for girls alien costume peak?: Demand peaks in Sep–Oct; the busiest month runs 172.1× the quietest.
What does it cost to enter the girls alien costume niche?: Listings span $10.33–$58.40; the average listing price is $26.77 (sweet spot $15–$100). The average incumbent carries 189 reviews — the moat a new listing must climb.