nail polish thinner
Skip itPrices mostly outside the sweet spot ($2.51–$10.41) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 6% kills the launch gate
Conversion
Great9.3%search→purchase rate — share of searches ending in a sale
Growth
Good+34.8%90-day search growth — must beat 0% to launch
Quality gap
Good4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$255K$255K/yr · 355K searches
Review moat
Okay2,102.7avg incumbent reviews — the moat a new listing must climb
Avg price
Bad$7.76avg listing price — sweet spot $15–$100
Brand share
Bad92%top-5 brand share — brand-locked demand
Competition
Bad84%top-5 click share — a locked-up shelf
Price range
Bad$2.51–$10.41cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 falling
Sellers
45
Top-5 brand share
92%
Open market
5%
- Seche45%
- Karlash19%
- SuperNail11%
- Tachibelle11%
- Orly7%
- JODSONE3%
- Open — no brand owns it (2 brands, 5%)
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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Lacquer Nail Lacquer Thinner Extends Manicure Life 0.5 Fl Oz
Seche$7.974.7★4,221 rev
Karlash Professional Nail Polish Thinner 0.5 oz - Restore thick and sticky nail polish (1 Piece)
Karlash$8.444.4★748 rev
Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Nail Lacquer Extends Manicure Life 2 Fl Oz
Seche$10.414.7★4,221 rev
Tachibelle Nail Polish Thinner - Bring your old polishes back to life (1 Bottle)
Tachibelle$8.974.2★1,499 rev
SuperNail Gel Nail Polish Thinner for Professional Salons Revives Thickened Lacquer and Restores Smooth Consistency Acetone Alternative 4 fl oz
SuperNail$8.394.5★3,110 rev
Newest
by launch date
JODSONE 100ml Gel Nail Polish Thinner for Nail Spray for Gel Nail Polish Quick Dilution and Cleaning High-Efficiency Maintenance Larger Capacity Easy of Use DIY Nails Art Precision Dropper Design
JODSONE$7.8731 rev
Karlash Professional Nail Polish Thinner 0.5 oz - Restore thick and sticky nail polish (1 Piece)
Karlash$8.44748 rev
Tachibelle Nail Polish Thinner - Bring your old polishes back to life (1 Bottle)
Tachibelle$8.971,499 rev
Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Lacquer Nail Lacquer Thinner Extends Manicure Life 0.5 Fl Oz
Seche$7.974,221 rev
Vallejo Thinner Medium 17 ml
Vallejo$7.131,243 rev
Trending
90-day click momentumJODSONE 100ml Gel Nail Polish Thinner for Nail Spray for Gel Nail Polish Quick Dilution and Cleaning High-Efficiency Maintenance Larger Capacity Easy of Use DIY Nails Art Precision Dropper Design
JODSONE$7.874.2★
Karlash Professional Nail Polish Thinner 0.5 oz - Restore thick and sticky nail polish (1 Piece)
Karlash$8.444.4★
Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Lacquer Nail Lacquer Thinner Extends Manicure Life 0.5 Fl Oz
Seche$7.974.7★
Vallejo Thinner Medium 17 ml
Vallejo$7.134.3★
Supernail Thinner 1 Fluid Ounce
SuperNail$2.514.4★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +34.8% search growth over the last 90 days.Peak months: Jun · busiest ÷ quietest = 1.8×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“No complaints”
“Worked just as advertised”
“Thins well”
“Effective”
“very affordable”
“easy to work with”
“durable as when it was new”
“This has worked for all of my colors”
“Great for refreshing old or glittery polishes”
“its a pretty good size”
What buyers complain about
“Some became chunky like rotten milk”
“Doesn't work”
“Strong Smell”
“it never fully dried”
“Arrived leaking,”
“WASTE OF MONEY”
“Made polish in worse condition”
“I didn't think much of it because of how common of an ingredient is”
“the bottle was 2-3 times larger”
“works ok if we had directions”