retainer
Worth a lookShows low returns (1.1%), but soft demand (-4.4% this quarter) keeps it on the watch list.
Returns
Great1.1%return rate — above 5% kills the launch gate
Avg price
Great$60.08avg listing price — sweet spot $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Market size
Good$661K$661K/yr · 579K searches
Brand share
Good68%top-5 brand share — brands hold most of the demand
Price range
Good$8.57–$149.27cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay62%top-5 click share — leaders hold, buyers still browse
Review moat
Okay3,107.14avg incumbent reviews — the moat a new listing must climb
Conversion
Bad1.9%search→purchase rate — share of searches ending in a sale
Growth
Bad-4.4%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, retainer is a $661K/yr Amazon United States market (579K searches/yr). The top 5 brands hold 68% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
retainer market data
- Units sold / yr
- 10K–13K
- avg 500–750/product
- Revenue / yr
- $601K–$751K
- units × avg price
- Conversion rate
- 1.9%
- Avg BSR
- #270
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 10.9%
- Avg brand age
- 38 months
- Avg seller age
- 149 days
Competition & brand share
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.Brands
16 rising
Sellers
48
Top-5 brand share
68%
Top 20: 100%
Top-5 click share
62%
Top 20: 98%
Open market
25%
- Dggisbab22%
- Qiivosm16%
- Reazeal12%
- Mevivism9%
- DenTek8%
- Smileins Lab8%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -4.4% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top retainer search terms
- retainer222K/yr
- retainers61K/yr
- teeth retainer45K/yr
- retenedores de dientes ortodoncia43K/yr
- retainers for teeth39K/yr
- retainer kit22K/yr
- retainer kit make your own retainer12K/yr
- retenedores de dientes23K/yr
- retenedores de dientes para dormir9K/yr
- clear retainer for teeth14K/yr
Top retainer 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 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Custom Clear Retainers for Teeth (Single Retainer)
Dggisbab$59.704.2★19 rev
Custom Retainers for Teeth Upper and Lower Clear Retainer Set Precision-Fit Design for Long-Lasting Comfort Slim Transparent and Ideal for Daytime or Overnight Wear (Upper & Lower Set)
Qiivosm$86.964.3★68 rev
Mouth Guard for Grinding Teeth at Night: Moldable Dental Guard for Sleeping - Nighttime Protection for Teeth with 12 Cleaning Tablets
Reazeal$14.244.0★14,950 rev
DenTek Professional-Fit Dental Guard Mouth Guard for Grinding Teeth at Night 1 Count
DenTek$15.483.9★23,418 rev
Custom Retainer Clear Replacement Dental Retainers for Teeth
Smileins Lab$89.834.2★49 rev
Newest
by launch date
OHALEEP Anti Grinding Guard for Clenching Teeth at Night Teeth Grinding Mouthguards for Sleeping Mouth Guard for Grinding Teeth at Night Night Guards for Teeth Grinding for Adults
OHALEEP$22.2526 rev
OHALEEP Anti Grinding Guard for Clenching Teeth at Night Teeth Grinding Mouthguards for Sleeping Mouth Guard for Grinding Teeth at Night Night Guards for Teeth Grinding for Adults
OHALEEP$23.04120 rev
Clear Teeth Retainers (One Upper Retainer)
Initsmil$66.952 rev
Cutsom Upper Clear Retainer
Sohhvom$60.698 rev
Clear Invisible Retainer (Upper Retainer)
PUAOIWU$64.323 rev
Trending
90-day click momentumCutsom Upper Clear Retainer
Sohhvom$60.694.8★
OHALEEP Anti Grinding Guard for Clenching Teeth at Night Teeth Grinding Mouthguards for Sleeping Mouth Guard for Grinding Teeth at Night Night Guards for Teeth Grinding for Adults
OHALEEP$23.043.1★
Cutsom Upper & Lower Clear Retainer Set
Sohhvom$90.934.8★
Custom Clear Retainers for Teeth (Upper + Lower Retainer)
Iviiccov$79.815.0★
Clear Invisible Retainer (Upper Retainer)
PUAOIWU$64.324.5★
What buyers say about retainer
What buyers praise and complain about, mined from review topics.What buyers love
“Good product, great seller”
“Great cleanser”
“Easy to Fit”
“Easy to Fit”
“Good for the price”
“It's comfortable”
“Seems to work good”
“the instructions were clear”
“works as stated”
“Clean Skin”
What buyers complain about
“Bad fit”
“Never worked”
“not worth it”
“the build quality is very poor”
“Lacks durability”
“This one is a little thicker than the last one I bought”
“Bulky and uncomfortable”
“Impossible to use”
“The manufacturer messed up with the instructions”
“Looks quite rough”
Top return reasons
Common questions
- Is retainer profitable to sell on Amazon United States?
- The niche generates $661K/yr across 22 tracked products. 7 of 14 products launched in the last 360 days are still selling. 90-day search growth is -4.4%. Flapen's verdict: Worth a look (54/100).
- How competitive is the retainer niche?
- 16 brands and 48 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 68% of demand.
- What do buyers complain about in retainer?
- Top complaints mined from reviews: Size-Overall, Functionality-Overall, Value For Money. The return rate is 1.1%.
- When does demand for retainer peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the retainer niche?
- Listings span $8.57–$149.27; the average listing price is $60.08 (sweet spot $15–$100). The average incumbent carries 3,107 reviews — the moat a new listing must climb.