---
title: "Birthday Girl — $128K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/birthday-girl"
last_updated: "2026-08-06T15:29:26.352Z"
locale: en
meta:
description: "Niche score 36/100 · $128K/yr market · 368K searches/yr · $10.77 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 36/100 · $128K/yr market · 368K searches/yr · $10.77 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Birthday Girl — $128K/yr Amazon US Niche (2026) - Flapen"
---
# **birthday girl**
**Skip it**
A concentrated shelf (top 5 take 84% of clicks) — this niche doesn't clear our bar today.
Market size 29Growth 24Conversion 40Competition 14Returns 95Price range 54Avg price 40Brand share 33Review moat 46Quality gap 21
**Returns**
**Incredible****0.9%**
return rate — above 5% kills the launch gate
**Price range**
**Good****$3.40–$28.58**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Okay****1,914.92**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****3.2%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Okay****$10.77**
avg listing price — sweet spot $15–$100
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$128K**
$128K/yr · 368K searches
**Growth**
**Bad****-2.8%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****84%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, birthday girl is a $128K/yr Amazon United States market (368K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Feb–Mar–Apr–May–Jun. Verdict: Skip it — 36/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **birthday girl market data**
- **Units sold / yr**
- **10K–13K**
- avg 500–750/product
- **Revenue / yr**
- **$108K–$135K**
- units × avg price
- **Conversion rate**
- **3.2%**
- **Avg BSR**
- **#91**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **24 months**
- **Avg seller age**
- **164 days**
## **Competition & brand share**
The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**12 **▼falling
**Sellers**
**17**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**84%**
Top 20: 100%
**Open market**
**12%**
- TOBATOBA33% - Chanaco29% - BOUTIKOME11% - Papoopy8% - AOPRIE4% - CIEHER3% - Open — no brand owns it (6 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -2.8% search growth over the last 90 days.
30K20KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Mar, Apr, May, Jun · busiest ÷ quietest = 3.7×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/birthday-girl/trend)
## **Top birthday girl search terms**
- **birthday girl**364K/yr-2.8%1.7% conv. - **burthday girl**2K/yr-4.1%2.8% conv. - **bday girl**2K/yr+1.2%1.8% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/birthday-girl/search-terms)
## **Top birthday girl 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.
0%10%$13K20%$26K30%$38K40%$51K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**TOBATOBA Birthday Crowns and Sash for Women Rose Gold Princess Birthday Decorations**TOBATOBA**$10.07**4.7★599 rev](https://www.amazon.com/dp/B0C3LSDNCL) [2**Chanaco Happy Birthday Crown and Sash Kit for Women and Girls - Rhinestone Tiara and Sashes with BIRTHDAY GIRL Sash for Party Favors**Chanaco**$10.02**4.7★194 rev](https://www.amazon.com/dp/B0CNG6FKH5) [3**BOUTIKOME Birthday Girl Shirts Toddler Kid Girls Tie Dye T-Shirt Birthday Outfits Summer Tees B-Day Gifts Party Tops 1-10Y(Purple 6-7Y)**BOUTIKOME**$14.79**4.7★234 rev](https://www.amazon.com/dp/B0F5PRLMQ6) [4**Papoopy Birthday Headband with Sash for Women Birthday Crwon Tiara for Decorations**Papoopy**$5.21**4.7★215 rev](https://www.amazon.com/dp/B0FVFQTBHP) [5**CIEHER Birthday Girl Headband Crown for Women & Girls - Pink Glitter Letter Tiara - One Size Fits All - Birthday Decoration & Gift**CIEHER**$6.02**4.6★453 rev](https://www.amazon.com/dp/B0DSW65C4X)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Papoopy Birthday Headband with Sash for Women Birthday Crwon Tiara for Decorations**Papoopy**$5.21**215 rev9mo ago](https://www.amazon.com/dp/B0FVFQTBHP) [**Fystdtote Gifts for Teen Girls Kids | Birthday Gift for 3 4 5 6 7 8 9 10 11 12 13 14 Year Old Girl Crossbody Sling Bag Backpack Fanny Pack Purse Cute Trendy Stuff - Lavender A**Fystdtote**$14.97**58 rev1y ago](https://www.amazon.com/dp/B0FHB3XRVW) [**GZJINYUAN 3Pcs Birthday Girl Sash Headband Set- Glitter Sashs Rhinestone Headband Sunglasses Birthday Sash Accessories for Women Girls (Pink)**GZJINYUAN**$14.57**98 rev1y ago](https://www.amazon.com/dp/B0FCFKW91T) [**BOUTIKOME Birthday Girl Shirts Toddler Kid Girls Tie Dye T-Shirt Birthday Outfits Summer Tees B-Day Gifts Party Tops 1-10Y(Purple 6-7Y)**BOUTIKOME**$14.79**234 rev1y ago](https://www.amazon.com/dp/B0F5PRLMQ6) [**CIEHER Birthday Girl Headband Crown for Women & Girls - Pink Glitter Letter Tiara - One Size Fits All - Birthday Decoration & Gift**CIEHER**$6.02**453 rev1y ago](https://www.amazon.com/dp/B0DSW65C4X)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BOUTIKOME Birthday Girl Shirts Toddler Kid Girls Tie Dye T-Shirt Birthday Outfits Summer Tees B-Day Gifts Party Tops 1-10Y(Purple 6-7Y)**BOUTIKOME**$14.79**4.7★**▲ 83%**](https://www.amazon.com/dp/B0F5PRLMQ6) [**GZJINYUAN 3Pcs Birthday Girl Sash Headband Set- Glitter Sashs Rhinestone Headband Sunglasses Birthday Sash Accessories for Women Girls (Pink)**GZJINYUAN**$14.57**4.4★**▲ 65%**](https://www.amazon.com/dp/B0FCFKW91T) [**Fystdtote Gifts for Teen Girls Kids | Birthday Gift for 3 4 5 6 7 8 9 10 11 12 13 14 Year Old Girl Crossbody Sling Bag Backpack Fanny Pack Purse Cute Trendy Stuff - Lavender A**Fystdtote**$14.97**4.6★**▲ 57%**](https://www.amazon.com/dp/B0FHB3XRVW) [**Birthday Girl Shirt Toddler T-Shirt Kid Birthday Party Outfit Tee Gift for Girls 1st 2nd 3rd 4th 5th 6th 7th 8th Tops (White on Mauve 12 Months)**Unordinary Toddler**$12.17**4.8★**▲ 41%**](https://www.amazon.com/dp/B08HZ6PK11) [**Chanaco Happy Birthday Crown and Sash Kit for Women and Girls - Rhinestone Tiara and Sashes with BIRTHDAY GIRL Sash for Party Favors**Chanaco**$10.02**4.7★**▲ 32%**](https://www.amazon.com/dp/B0CNG6FKH5)
**~~View all trending →~~**
## **What buyers say about birthday girl**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“Awesome quality”*
**Smell**10%
*“wonderful soft sweet subtle scent”*
**Gifting Purpose**10%
*“Great gift”*
**Advertised Vs Actual Product**8%
*“Exactly what I was looking for”*
**Moist/Dry**6%
*“Moisturizing”*
**Value For Money**6%
*“Worth it”*
**Size-Overall**6%
*“Perfect size”*
**Fun/Entertainment Experience**5%
*“This and a fun birthday card that plays a song and you are sorted out”*
**Color**4%
*“Sturdy and colorful”*
**Brightness/Shine/Glow**3%
*“Sparkle”*
### **What buyers complain about **
**Smell**23%
*“Unpleasant Smell”*
**Size-Overall**17%
*“a little bit too big for my 8 year old”*
**Quality-Overall**13%
*“Cheap and useless”*
**Durability**6%
*“Broke same day it was worn”*
**Moist/Dry**5%
*“Don't know how moisturizing it is”*
**Value For Money**2%
*“A little expensive considering its simplicity”*
**Product Condition**2%
*“Looks like someone returned it already”*
**Weight Heavy**2%
*“Heavy crown”*
**Strength**2%
*“Not sturdy”*
**Allergies**2%
*“she said it was itchy so only wore it for some pictures”*
### **Top return reasons **
**Size-Overall**46%
**Advertised Vs Actual Product**8%
**Quality-Overall**7%
**Value For Money**7%
**Color**4%
**Functionality-Overall**4%
**Strength**3%
**Defective Material/Parts**2%
**Smell**2%
**Comfort-Overall**2%
## **Common questions**
- **Is birthday girl profitable to sell on Amazon United States?**
- The niche generates $128K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -2.8%. Flapen's verdict: Skip it (36/100).
- **How competitive is the birthday girl niche?**
- 12 brands and 17 sellers compete. The top 5 products take 84% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in birthday girl?**
- Top complaints mined from reviews: Smell, Size-Overall, Quality-Overall. The return rate is 0.9%.
- **When does demand for birthday girl peak?**
- Demand peaks in Feb–Mar–Apr–May–Jun; the busiest month runs 3.7× the quietest.
- **What does it cost to enter the birthday girl niche?**
- Listings span $3.40–$28.58; the average listing price is $10.77 (sweet spot $15–$100). The average incumbent carries 1,915 reviews — the moat a new listing must climb.
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