---
title: "nail polish thinner — Niche Verdict: Skip it (47/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/beauty-personal-care/nail-polish-thinner"
last_updated: "2026-07-14T09:14:21.398Z"
locale: en
meta:
  description: "prices mostly outside the sweet spot ($2.51–$10.41) — nail polish thinner doesn't clear our bar today."
  "og:description": "prices mostly outside the sweet spot ($2.51–$10.41) — nail polish thinner doesn't clear our bar today."
  "og:title": "nail polish thinner — Niche Verdict: Skip it (47/100) | Amazon United States - Flapen"
---

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# **nail polish thinner**

**Skip it**

Prices mostly outside the sweet spot ($2.51–$10.41) — this niche doesn't clear our bar today.

Market size 47Growth 59Conversion 84Competition 14Returns 100Price range 0Avg price 22Brand share 19Review moat 44Quality gap 50

**Returns**

**Incredible****0.1%**

return rate — above 6% kills the launch gate

**Conversion**

**Great****9.3%**

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**

**Good****4.5★**

avg incumbent rating — lower means beatable quality

**Market size**

**Okay****$255K**

$255K/yr · 355K searches

**Review moat**

**Okay****2,102.7**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Bad****$7.76**

avg listing price — sweet spot $15–$100

**Brand share**

**Bad****92%**

top-5 brand share — brand-locked demand

**Competition**

**Bad****84%**

top-5 click share — a locked-up shelf

**Price range**

**Bad****$2.51–$10.41**

cheapest 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.

0%10%$26K20%$51K30%$77K40%$102K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 10 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Lacquer Nail Lacquer Thinner Extends Manicure Life 0.5 Fl Oz](https://m.media-amazon.com/images/I/31uhMbyY3ML.jpg)**Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Lacquer Nail Lacquer Thinner Extends Manicure Life 0.5 Fl Oz**Seche**$7.97**4.7★4,221 rev](https://www.amazon.com/dp/B0017ZDH52) [2![Karlash Professional Nail Polish Thinner 0.5 oz - Restore thick and sticky nail polish (1 Piece)](https://m.media-amazon.com/images/I/31wwzyZQeFL.jpg)**Karlash Professional Nail Polish Thinner 0.5 oz - Restore thick and sticky nail polish (1 Piece)**Karlash**$8.44**4.4★748 rev](https://www.amazon.com/dp/B091MH7732) [3![Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Nail Lacquer Extends Manicure Life 2 Fl Oz](https://m.media-amazon.com/images/I/31Xd74LhjxL.jpg)**Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Nail Lacquer Extends Manicure Life 2 Fl Oz**Seche**$10.41**4.7★4,221 rev](https://www.amazon.com/dp/B0016A8DT8) [4![Tachibelle Nail Polish Thinner - Bring your old polishes back to life (1 Bottle)](https://m.media-amazon.com/images/I/41Mx7ujgWwL.jpg)**Tachibelle Nail Polish Thinner - Bring your old polishes back to life (1 Bottle)**Tachibelle**$8.97**4.2★1,499 rev](https://www.amazon.com/dp/B091M7DWNF) [5![SuperNail Gel Nail Polish Thinner for Professional Salons Revives Thickened Lacquer and Restores Smooth Consistency Acetone Alternative 4 fl oz](https://m.media-amazon.com/images/I/41dBh6EftwL.jpg)**SuperNail Gel Nail Polish Thinner for Professional Salons Revives Thickened Lacquer and Restores Smooth Consistency Acetone Alternative 4 fl oz**SuperNail**$8.39**4.5★3,110 rev](https://www.amazon.com/dp/B000142ZFS)

**~~View all top sellers →~~**

### **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](https://m.media-amazon.com/images/I/21rZ+cKco0L.jpg)**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**$7.87**31 rev8mo ago](https://www.amazon.com/dp/B0G25S1BNX) [![Karlash Professional Nail Polish Thinner 0.5 oz - Restore thick and sticky nail polish (1 Piece)](https://m.media-amazon.com/images/I/31wwzyZQeFL.jpg)**Karlash Professional Nail Polish Thinner 0.5 oz - Restore thick and sticky nail polish (1 Piece)**Karlash**$8.44**748 rev5y ago](https://www.amazon.com/dp/B091MH7732) [![Tachibelle Nail Polish Thinner - Bring your old polishes back to life (1 Bottle)](https://m.media-amazon.com/images/I/41Mx7ujgWwL.jpg)**Tachibelle Nail Polish Thinner - Bring your old polishes back to life (1 Bottle)**Tachibelle**$8.97**1,499 rev5y ago](https://www.amazon.com/dp/B091M7DWNF) [![Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Lacquer Nail Lacquer Thinner Extends Manicure Life 0.5 Fl Oz](https://m.media-amazon.com/images/I/31uhMbyY3ML.jpg)**Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Lacquer Nail Lacquer Thinner Extends Manicure Life 0.5 Fl Oz**Seche**$7.97**4,221 rev8y ago](https://www.amazon.com/dp/B0017ZDH52) [![Vallejo Thinner Medium 17 ml](https://m.media-amazon.com/images/I/31RXyGcLerL.jpg)**Vallejo Thinner Medium 17 ml**Vallejo**$7.13**1,243 rev15y ago](https://www.amazon.com/dp/B000KYLBZE)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![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](https://m.media-amazon.com/images/I/21rZ+cKco0L.jpg)**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**$7.87**4.2★**▲ 119%**](https://www.amazon.com/dp/B0G25S1BNX) [![Karlash Professional Nail Polish Thinner 0.5 oz - Restore thick and sticky nail polish (1 Piece)](https://m.media-amazon.com/images/I/31wwzyZQeFL.jpg)**Karlash Professional Nail Polish Thinner 0.5 oz - Restore thick and sticky nail polish (1 Piece)**Karlash**$8.44**4.4★**▲ 65%**](https://www.amazon.com/dp/B091MH7732) [![Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Lacquer Nail Lacquer Thinner Extends Manicure Life 0.5 Fl Oz](https://m.media-amazon.com/images/I/31uhMbyY3ML.jpg)**Seche Restore Top Coat - Nail Polish Thinner Revive Thickened Lacquer Nail Lacquer Thinner Extends Manicure Life 0.5 Fl Oz**Seche**$7.97**4.7★**▲ 36%**](https://www.amazon.com/dp/B0017ZDH52) [![Vallejo Thinner Medium 17 ml](https://m.media-amazon.com/images/I/31RXyGcLerL.jpg)**Vallejo Thinner Medium 17 ml**Vallejo**$7.13**4.3★**▲ 11%**](https://www.amazon.com/dp/B000KYLBZE) [![Supernail Thinner 1 Fluid Ounce](https://m.media-amazon.com/images/I/41BylPHy5vL.jpg)**Supernail Thinner 1 Fluid Ounce**SuperNail**$2.51**4.4★**— 7%**](https://www.amazon.com/dp/B00ABN19BA)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +34.8% search growth over the last 90 days.

10K6KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Jun · busiest ÷ quietest = 1.8×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**15%

*“No complaints”*

**Advertised Vs Actual Product**15%

*“Worked just as advertised”*

**Thickness**14%

*“Thins well”*

**Efficiency**10%

*“Effective”*

**Value For Money**9%

*“very affordable”*

**Ease Of Use**6%

*“easy to work with”*

**Durability**3%

*“durable as when it was new”*

**Color**3%

*“This has worked for all of my colors”*

**Brightness/Shine/Glow**2%

*“Great for refreshing old or glittery polishes”*

**Size-Overall**2%

*“its a pretty good size”*

### **What buyers complain about **

**Thickness**18%

*“Some became chunky like rotten milk”*

**Functionality-Overall**13%

*“Doesn't work”*

**Smell**7%

*“Strong Smell”*

**Moist/Dry**7%

*“it never fully dried”*

**Leak-Proof**7%

*“Arrived leaking,”*

**Value For Money**6%

*“WASTE OF MONEY”*

**Paint Quality**5%

*“Made polish in worse condition”*

**Ingredients-Overall**4%

*“I didn't think much of it because of how common of an ingredient is”*

**Size-Overall**4%

*“the bottle was 2-3 times larger”*

**Instructions/User Manual/Troubleshooting**3%

*“works ok if we had directions”*

### **Top return reasons **

**Thickness**36%

**Advertised Vs Actual Product**20%

**Thin**19%

**Functionality-Overall**8%

**Size-Overall**5%

**Leak-Proof**4%

**Color**4%

**Compatibility-Overall**3%

**Material Quality**2%