18th birthday candles
Worth a lookShows a fragmented shelf (top 5 take 24% of clicks), but soft demand (-25.5% this quarter) keeps it on the watch list.
Competition
Great24%top-5 click share — an open shelf
Brand share
Great46%top-5 brand share — no brand owns this niche
Conversion
Great8.8%search→purchase rate — share of searches ending in a sale
Returns
Great1.9%return rate — above 5% kills the launch gate
Review moat
Good737.76avg incumbent reviews — the moat a new listing must climb
Price range
Okay$4.64–$21.80cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Avg price
Bad$6.94avg listing price — sweet spot $15–$100
Market size
Bad$60K$60K/yr · 98K searches
Growth
Bad-25.5%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 18th birthday candles is a $60K/yr Amazon United States market (98K searches/yr). The top 5 brands hold 46% of demand. Demand peaks in Sep. Verdict: Worth a look — 51/100.
Data updated Jul 31, 2026 · scored weekly · How we score niches
18th birthday candles market data
- Units sold / yr
- 6K–8K
- avg 0–100/product
- Revenue / yr
- $42K–$56K
- units × avg price
- Conversion rate
- 8.8%
- Avg BSR
- #777
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 81%
- Out of stock
- 5.3%
- Avg brand age
- 26 months
- Avg seller age
- 217 days
Competition & brand share
Clicks spread well past the top 5 (24% combined) — an open shelf where new products get seen.Brands
57 falling
Sellers
66
Top-5 brand share
46%
Top 20: 80%
Top-5 click share
24%
Top 20: 62%
Open market
50%
- Lecferrarc12%
- ZHUOWEISM12%
- Gyufise8%
- Ephlyn7%
- Florcmet6%
- ROYOROYI4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -25.5% search growth over the last 90 days.Peak months: Sep · busiest ÷ quietest = 1.7×
Top 18th birthday candles search terms
- happy 18th birthday cake topper29K/yr
- 18 cake topper30K/yr
- 18th birthday cake topper boy9K/yr
- birthday candles 186K/yr
- 18th cake topper5K/yr
- 18th birthday cake topper for girls5K/yr
- 18 candles for cake5K/yr
- 18th birthday candles for cake9K/yr
Top 18th birthday candles 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
FLORCMET Gold Glitter Happy 18th Birthday Cake Topper
Florcmet$4.964.7★707 rev
Lecferrarc 18th Birthday Cake Decorations 18th Birthday Candles Cake Numeral Candles and Glitter Happy 18th Birthday Cake Toppers Set for Birthday Party Supplies (Rose Gold)
Lecferrarc$6.894.7★413 rev
ROYOROYI 18th Birthday Decorations Gold Number 18 Candles for Cake
ROYOROYI$4.644.8★268 rev
1 PCS Happy 18th Birthday Cake Topper Black Gold Glitter Cheers to 18 Years Birthday Cake Pick 18 Fabulous Cake Decoration for Happy 18th Birthday Anniversary Party Cake Decorations Supplies
ZHUOWEISM$5.894.7★1,953 rev
Lecferrarc 18th Birthday Cake Decorations 18th Birthday Candles Cake Numeral Candles and Glitter Happy 18th Birthday Cake Toppers Set for Birthday Party Supplies (Black)
Lecferrarc$6.914.7★413 rev
Newest
by launch date
Happy Birthday 18 Cake Topper Acrylic Gold Happy 18th Birthday Cake Decoration Cheers to 18 Years Cake Pick Eighteen Hello 18 Fabulous Cake Sign for Party Supplies
REMAX$6.626 rev
Gold Acrylic Number 18 Birthday Cake Topper Happy 18th Birthday Cake Topper Hello 18 Cheers to 18 Years Birthday and Anniversary Party Decoration for Boy/Girls
lvbeybc$5.795 rev
Eighteen Cake Topper Happy 18th Birthday Cake Topper Gold Cheers to 18 Years Birthday Cake Pick 18 Fabulous Cake Decoration for Happy 18th Birthday Anniversary Party Cake Decorations Supplies
QPARTYFIRE$6.4514 rev
Ruscalin Happy 18th Birthday Cake Topper Mirrored Gold Acrylic Birthday
Ruscalin$7.1093 rev
ROYOROYI 18th Birthday Decorations Gold Number 18 Candles for Cake
ROYOROYI$4.64268 rev
Trending
90-day click momentum
Gyufise 1Pc Happy 18th Birthday Cake Topper Glitter Happy Birthday Cake Pick Cheers to 18 Years for 18th Anniversary Wedding Party Cupcake Decorations Supplies Blue
Gyufise$5.864.6★
Ruscalin Happy 18th Birthday Cake Topper Mirrored Gold Acrylic Birthday
Ruscalin$7.104.4★
Happy Birthday 18 Cake Topper Acrylic Gold Happy 18th Birthday Cake Decoration Cheers to 18 Years Cake Pick Eighteen Hello 18 Fabulous Cake Sign for Party Supplies
REMAX$6.623.4★
FLORCMET Gold Glitter Happy 18th Birthday Cake Topper
Florcmet$4.964.7★
Gold Acrylic Number 18 Birthday Cake Topper Happy 18th Birthday Cake Topper Hello 18 Cheers to 18 Years Birthday and Anniversary Party Decoration for Boy/Girls
lvbeybc$5.793.6★
What buyers say about 18th birthday candles
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent quality”
“Exactly as pictured”
“Great Candles”
“Great price”
“smells clean”
“Nice size”
“Beautiful gold color”
“Perfect for all cakes”
“Cute gift”
“This was a fun design in the perfect size and colors”
What buyers complain about
“Too small”
“This broke as soon as I took it out of the package”
“Theres no way to even super glue the stick back on without it being obvious”
“Bad quality”
“Value for the money isnt great”
“Bad smell and runny/leaky”
“Not overly thick or hea y - really thin”
“Wish it had different colors for that specific design”
“lots of oily like substance that ruined the look for a gift”
“The happy birthday is flimsy”
Top return reasons
Common questions
- Is 18th birthday candles profitable to sell on Amazon United States?
- The niche generates $60K/yr across 78 tracked products. 1 of 15 products launched in the last 360 days are still selling. 90-day search growth is -25.5%. Flapen's verdict: Worth a look (51/100).
- How competitive is the 18th birthday candles niche?
- 57 brands and 66 sellers compete. The top 5 products take 24% of clicks and top 5 brands hold 46% of demand.
- What do buyers complain about in 18th birthday candles?
- Top complaints mined from reviews: Size-Overall, Durability, Adhesion/Stickiness. The return rate is 1.9%.
- When does demand for 18th birthday candles peak?
- Demand peaks in Sep; the busiest month runs 1.7× the quietest.
- What does it cost to enter the 18th birthday candles niche?
- Listings span $4.64–$21.80; the average listing price is $6.94 (sweet spot $15–$100). The average incumbent carries 738 reviews — the moat a new listing must climb.