finger sucking prevention
Worth a lookShows beatable incumbent ratings (4.0★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Quality gap
Incredible4.0★avg incumbent rating — lower means beatable quality
Returns
Incredible0.9%return rate — above 6% kills the launch gate
Avg price
Incredible$24.31avg listing price — sweet spot $15–$100
Price range
Great$8.28–$64.81cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Great59%top-5 brand share — no brand owns this niche
Competition
Good41%top-5 click share — leaders hold, buyers still browse
Conversion
Good4.3%search→purchase rate — share of searches ending in a sale
Market size
Okay$232K$232K/yr · 224K searches
Review moat
Okay2,307.67avg incumbent reviews — the moat a new listing must climb
Growth
Bad-20.2%90-day search growth — must beat 0% to launch
Competition
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.Brands
19 falling
Sellers
29
Top-5 brand share
59%
Open market
35%
- TGuard19%
- NIXXIT12%
- Nipit11%
- Janmercy9%
- MAVALA8%
- HS&ROXIN5%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 27 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
NIXXIT Nail Biting Prevention for Kids - Thumb Sucking Deterrent for Kids Toddlers Children - No Bite Nail Polish Pen - Bitter Taste - Safe & Effective Solution for Age 3+
NIXXIT$15.833.9★4,074 rev
Mavala Stop Deterrent Nail Polish Treatment | Nail Care to Help Stop Putting Fingers In Your Mouth | Bitter Taste| Easy Application | For Ages 3+ | 0.17 oz
MAVALA$12.324.4★29,779 rev
Janmercy 16 Pcs Thumb Sucking Stop for Kids Chewy Gloves Stop Breathable Thumb Guard for Nail Biting Gloves Cute Finger Sucking Stopper for Kids 8 Style 2 Finger(8-12 Years)
Janmercy$17.923.6★320 rev
NIPIT Age 2-7 Thumb Sucking Habit STOP for Kids Best Toddler Finger Sucking Prevention. #1 Pediatric Dentist Rated since 2014 Keep Fingers Uncovered to Develop and Play INCLUDES Motivation Program
Nipit$47.263.8★2,236 rev
TGuard AeroFinger Anti-Finger Sucking Guard Finger Sucking Prevention Kit Deterrent to Stop Finger Habit Washable Secure-Fit Guard for Kids Soft Medium (Kids 4070 lbs) Ages 56 Made in USA
TGuard$64.814.0★770 rev
Newest
by launch date
Glamonade Nail Biting Prevention for Kids: Thumb Sucking Deterrent Instant Bitter Taste Habit Correction Formula Nail Repair for Damaged Nails Care Safe Effective & Non-Toxic Invisible Matte Finish
Glamonade$13.3965 rev
modelones Nail Biting Prevention for Kids - Bitter Thumb Sucking Deterrent - Quick Dry No Bite Nail Polish Pen - Stop Biting for Adults - Nail Repair & Care - Safe & Effective Solution For Age 1+
modelones$8.28689 rev
HS&ROXIN Thumb Sucking Gloves 5 Fingers Sucking Guard Stop Thumb Sucking and Nail Biting for Kids Ages 6 Months to 8 Years (XM)
HS&ROXIN$23.7418 rev
Morovan Nail Biting Prevention For Kids: Thumb Sucking Deterrent No Bite Nail Polish for Biters Anti Finger Sucking Lasting & Safe with Repair & Growth Nails 15ML Treatment Adults & Kids
Morovan$9.8760 rev
Control-It Natural Nail Biting & Thumb Sucking Solution | 100% Natural Kid Safe Bitter Taste Deterrent | Gentle on Skin Teeth Nails | 21 Consecutive Days To See Results | For Kids | Made in USA!
CONTROL-IT$23.09133 rev
Trending
90-day click momentumHS&ROXIN Thumb Sucking Gloves 5 Fingers Sucking Guard Stop Thumb Sucking and Nail Biting for Kids Ages 6 Months to 8 Years (XM)
HS&ROXIN$23.744.2★
Morovan Nail Biting Prevention For Kids: Thumb Sucking Deterrent No Bite Nail Polish for Biters Anti Finger Sucking Lasting & Safe with Repair & Growth Nails 15ML Treatment Adults & Kids
Morovan$9.874.5★
Glamonade Nail Biting Prevention for Kids: Thumb Sucking Deterrent Instant Bitter Taste Habit Correction Formula Nail Repair for Damaged Nails Care Safe Effective & Non-Toxic Invisible Matte Finish
Glamonade$13.394.2★
Stop Nail Biting Treatment for Kids & Adults Bitter Taste No-Bite Nail Polish Thumb Sucking Deterrent Non-Toxic Safe Formula Supports Healthy Nails 0.5 fl oz
SISQUOC HEALTHCARE$15.844.2★
Janmercy 16 Pcs Thumb Sucking Stop for Kids Chewy Gloves Stop Breathable Thumb Guard for Nail Biting Gloves Cute Finger Sucking Stopper for Kids 8 Style 2 Finger(3-6 Years)
Janmercy$19.103.6★
Demand & seasonality
Weekly Amazon search volume, last 92 weeks — -20.2% search growth over the last 90 days.Peak months: Aug · busiest ÷ quietest = 1.6×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Its effective at first”
“The ease of application”
“Great No-Bite Nail Polish”
“Just what I needed”
“Worth the price”
“dries fast”
“Be consistent with application”
“Very durable”
“It works”
“They fit”
What buyers complain about
“Not effective”
“breaks far to easily for this outrageous price”
“Over Priced”
“it was impossible to open”
“even after an hour of drying. it dries within seconds.”
“Does not fit as advertised”
“Some individuals may experience allergic reactions”
“Bottle was leaking”
“Too soft”
“The only thing I have with the this item was it the liquid in the bottle became thinker and thicker, it was hard to apply”