21st Birthday Decorations for Her
21st Birthday Decorations for Her shows low returns (0.6%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Is 21st Birthday Decorations for Her profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, 21st Birthday Decorations for Her is a £282K/yr Amazon United Kingdom market (494K searches/yr). The top 5 brands hold 55% of demand. Demand peaks in Jan. Verdict: Worth a look — 58/100.
21st Birthday Decorations for Her: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved -0.1% over the last 90 days and 7.4% of searches end in a purchase.
£282K
revenue / yr
Who owns the niche?
The top 5 brands hold 55% of demand, so 45% of the market is open.
45%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.
0/100
page quality · 29 products
Top 21st Birthday Decorations for Her products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
KIUEZIR Rose Gold 21st Floral Shaped Birthday Tiara & Sash Set for Women
- Price
- £7.44
- Rating
- 4.8/5
- Reviews
- 26
- Age
- 1y ago
Rose Gold 21st Birthday Decoration for Her - Happy 21st Birthday Banner Triangle Flag Banner Number 21 Balloons Foil Curtains for Party Decorations
- Price
- £9.43
- Rating
- 4.4/5
- Reviews
- 3,914
- Age
- 3y ago
21st Birthday Decorations Sage Green Gold White 21st Birthday Banners Balloons Cake Topper Sash Bunting Flags Number Helium Balloons for 21st Party Deco
- Price
- £8.32
- Rating
- 4.3/5
- Reviews
- 337
- Age
- 2y ago
21st Birthday Decorations Retro Pink Rose Gold - Double Digits 21 Party Supplies Set for Women & Girls birthday Banner Pennant Flags Cake Topper Balloon Assortment (21st Pink Birthday Set)
- Price
- £8.12
- Rating
- 4.1/5
- Reviews
- 153
- Age
- 1y ago
Ledido LED Light Up Marquee Numbers Sign - Cool & Warm Light up Numbers for 21st Birthday Decorations LED Number Lights for Wedding Anniversary Grad Home Bedroom Table Wall Party Decor Number 21
- Price
- £14.19
- Rating
- 4.5/5
- Reviews
- 505
- Age
- 1y ago
Trending
90-day click momentum
21st Birstday Decorations Women Set - 32 Pcs Black Rose Gold Banner Background Swirls Latex Foil Balloons Cake Toppers Table Decor For Her 21 Years Old Party Kit Supplies
- Price
- £11.68
- Rating
- 4.3/5
- Reviews
- 7
- Age
- 6mo ago
KIUEZIR Rose Gold 21st Floral Shaped Birthday Tiara & Sash Set for Women
- Price
- £7.44
- Rating
- 4.8/5
- Reviews
- 26
- Age
- 1y ago
Belloxis 21st Birthday Gifts for Her Grip Socks Womens Cosy Socks Birthday Gifts for Women Sister Gifts for Girlfriend Daughter Gifts
- Price
- £5.67
- Rating
- 4.6/5
- Reviews
- 645
- Age
- 2y ago
OLOSONG 4 Pcs 21st Birthday for Gifts Women 21st Birthday Sash Tiara - Rose Gold Birthday Queen Tiara and Sash for Women Heart shaped pink diamond glasses Wooden dice
- Price
- £7.46
- Rating
- 4.5/5
- Reviews
- 196
- Age
- 10mo ago
21st Birthday Decorations for Her Happy 21st Birthday Banner 40 inches 21 Foil Balloons Champagne Golden Bottle and Glass Gold Pink White and Confetti Balloons 21st Party Decorations for Girls
- Price
- £8.07
- Rating
- 4.2/5
- Reviews
- 187
- Age
- 9mo ago
Newest
by launch date21st Birstday Decorations Women Set - 32 Pcs Black Rose Gold Banner Background Swirls Latex Foil Balloons Cake Toppers Table Decor For Her 21 Years Old Party Kit Supplies
- Price
- £11.68
- Rating
- 4.3/5
- Reviews
- 7
- Age
- 6mo ago
21st Birthday Decorations for Her Happy 21st Birthday Banner 40 inches 21 Foil Balloons Champagne Golden Bottle and Glass Gold Pink White and Confetti Balloons 21st Party Decorations for Girls
- Price
- £8.07
- Rating
- 4.2/5
- Reviews
- 187
- Age
- 9mo ago
OLOSONG 4 Pcs 21st Birthday for Gifts Women 21st Birthday Sash Tiara - Rose Gold Birthday Queen Tiara and Sash for Women Heart shaped pink diamond glasses Wooden dice
- Price
- £7.46
- Rating
- 4.5/5
- Reviews
- 196
- Age
- 10mo ago
21st Birthday Decorations for Her Rose Gold Happy Birthday Banner with 6 Hanging Swirls Party Decor Supplies for Women 21st Birthday Table Decorations
- Price
- £5.57
- Rating
- 3.1/5
- Reviews
- 10
- Age
- 11mo ago
KIUEZIR Rose Gold 21st Floral Shaped Birthday Tiara & Sash Set for Women
- Price
- £7.44
- Rating
- 4.8/5
- Reviews
- 26
- Age
- 1y ago
Competition: brands, sellers & click share
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.
Brands
23 falling
Sellers
47
Top-5 brand share
55%
Top 20: 97%
Top-5 click share
47%
Top 20: 89%
Open market
40%
- KIUEZIR21%
- VICTERR12%
- Yontree10%
- DEARLIVES7%
- OakTree6%
- onehous5%
21st Birthday Decorations for Her demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jan · busiest ÷ quietest = 1.9×
Top 21st Birthday Decorations for Her search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- 21st birthday decorations for her213K/yr
- 21st birthday decorations121K/yr
- 21st birthday banner44K/yr
- 21st birthday balloons26K/yr
- 21st birthday banners for her13K/yr
- 21st birthday banners12K/yr
- happy 21st birthday banner10K/yr
- 21st banners for her9K/yr
- 21 balloons for her8K/yr
- 21st decorations for her7K/yr
What reviews say buyers love and hate about 21st Birthday Decorations for Her
What buyers mention most, as a share of all reviews.
What buyers love
94% of reviews“Good value for money”
“Well made at a great price”
“You get what you see in the advert”
“colours was lovely”
“Good selection”
What buyers complain about
88% of reviews“Rubbish quality - broke on first use”
“Not worth £14.99”
“Rubbish quality - broke on first use”
“Obviously didn't realise till I was assembling it the night before my daughter's birthday”
“Seals on the balloons didn't stick so all balloons deflated by the time the party started”
21st Birthday Decorations for Her return rate & reasons
Why buyers send it back, as a share of all return requests.
0.6%
Return rate
53%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common 21st Birthday Decorations for Her questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
