---
product_id: 1209894
title: "Quimica Alemana. Esmalte Endurecedor para Unas"
brand: "química alemana"
price: "¥6309"
currency: JPY
in_stock: true
reviews_count: 13
category: "Química Alemana"
url: https://www.desertcart.jp/products/1209894-quimica-alemana-esmalte-endurecedor-para-unas
store_origin: JP
region: Japan
---

# Strengthens nails effectively Preliminary skin irritation test advised Protective barrier against chipping Quimica Alemana. Esmalte Endurecedor para Unas

**Brand:** química alemana
**Price:** ¥6309
**Availability:** ✅ In Stock

## Summary

> 💅 Elevate your nail game with the ultimate hardener – because strong nails never go out of style!

## Quick Answers

- **What is this?** Quimica Alemana. Esmalte Endurecedor para Unas by química alemana
- **How much does it cost?** ¥6309 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/1209894-quimica-alemana-esmalte-endurecedor-para-unas)

## Best For

- química alemana enthusiasts

## Why This Product

- Trusted química alemana brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Legacy Formula:** A cult favorite with a 15+ year track record of nail transformation.
- • **Shield Against Daily Wear:** Creates a durable protective layer that prevents chipping and breakage.
- • **Safety First, Beauty Always:** Includes clear usage guidelines to ensure irritation-free application.
- • **Fortify Your Nails Like a Pro:** Clinically proven to reduce splitting and peeling for resilient nails.
- • **Visible Results, No Compromise:** Bright white finish restores natural nail brightness without discoloration.

## Overview

Quimica Alemana Nail Hardener is a top-rated nail fortifier designed to strengthen and protect nails from chipping, peeling, and splitting. With a proven formula trusted for over 15 years, it forms a protective barrier that promotes healthier, more resilient nails. Users should perform a preliminary irritation test before use. This product is a must-have for professionals and beauty enthusiasts seeking durable, bright, and strong nails.

## Description

This nail hardener strengthens and protects nails to prevent breakage and splitting. It promotes healthier, more resilient nails with regular use.

Review: Best Nail Hardener - Excellent product!
Review: FINALLY! - Thank goodness! I got one of these from a friend about 15 years ago. It was great for my nails. Then a few years ago I decided to order from desertcart. My first order caused an intense burning in my nail beds. I decided it could have been a bad batch so I did a second order about a year later. It did the same, but the burning was not as intense. It still was hard on my nail beds. So I waited some months later and got a couple bottles that were corn yellow. and made the nails look like I smoked all day. Gross. I just got these 2 new ones and FINALLY, they are like the original one I used all those years ago. Nice bright white color and no burning nail beds! I would stick with this seller unless you have a bad experience. I got these earlier than the promised date, too

## Features

- Quimica Alemana Nail Hardener
- Excellent nail fortifier that besides forming a protective barrier prevents chipping, peeling and splitting.
- This product contains ingredients which may cause skin irritation and a preliminary test according to accompanying directions should be made.
- Preliminary Test: Shake gently, brush a thin coat from the middle of the nail toward the tip. If you feel a burning sensation on the nail, or a persistent discomfort, suspend its use.
- Keep away from heat of flame. Keep out of reach of children.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B004WG4CQ6 |
| Best Sellers Rank | #41,959 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #544 in Nail Polish |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,802) |
| Is Discontinued By Manufacturer  | No |
| Item model number  | QA01 |
| Manufacturer  | Quimica Alemana Ltda |
| Product Dimensions  | 1.5 x 4 x 2 inches; 2.47 ounces |
| UPC  | 524883519065 885584818858 887937849786 885524585086 794628307015 |

## Product Details

- **Brand:** Química Alemana
- **Item Form:** Gel
- **Item Weight:** 70 Grams
- **Liquid Volume:** 14 Milliliters
- **Specialty:** Hardener

## Images

![Quimica Alemana. Esmalte Endurecedor para Unas - Image 1](https://m.media-amazon.com/images/I/71DxUGmIF4L.jpg)

## Questions & Answers

**Q: Can this be used under gel/shellac polish?**
A: I've used it under Gelous, which is an "Advanced Nail Gel Coat", and it worked fine. I use it under everything. I'm not sure if this answers your question or not.

**Q: Why is nail hardner  bubbling on nail?**
A: Do not use this! It burnt my finger nails and the recovery took months, worse than doing back to back gels. I think it has ingredients that are toxic in the US

**Q: does the product have a shelf life?**
A: According to Schoon Scientific president Doug Schoon (who formerly served as CND’s VP of Science and Technology), the FDA does not designate the shelf life of nail polish, so it’s up to the manufacturer to determine the appropriate date. “Unopened and properly stored polish will last at least 18 months, possibly 24 months depending on storage conditions,” says Doug. Real talk—two years is a little early to ditch that half-used splurge, so it’s more important to look for signs of a spoiled bottle instead of relying on the date.

**Q: how often can I use this? .... I have to admit I'm a bit in a hurry to see great results.**
A: I use this product once per week it help me grow my nails but please use in a open window or close to a fan no children clouse and get a primer in your nails dount get close to skin it burns

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Nail Hardener
*by M***O on February 12, 2026*

Excellent product!

### ⭐⭐⭐⭐⭐ FINALLY!
*by J***T on February 1, 2026*

Thank goodness! I got one of these from a friend about 15 years ago. It was great for my nails. Then a few years ago I decided to order from Amazon. My first order caused an intense burning in my nail beds. I decided it could have been a bad batch so I did a second order about a year later. It did the same, but the burning was not as intense. It still was hard on my nail beds. So I waited some months later and got a couple bottles that were corn yellow. and made the nails look like I smoked all day. Gross. I just got these 2 new ones and FINALLY, they are like the original one I used all those years ago. Nice bright white color and no burning nail beds! I would stick with this seller unless you have a bad experience. I got these earlier than the promised date, too

### ⭐⭐⭐⭐⭐ 10/10!
*by M***O on December 23, 2025*

Worked wonders on my nails, were flimsy and weak and now are strong and grow long!

## Frequently Bought Together

- Quimica Alemana. Esmalte Endurecedor para Unas
- Seche Vite Dry Fast Top Coat for Nail Polish and Manicure, 0.5 oz, 2-pack
- Seche Vive Gel Effect Top Coat 0.5oz, boxed

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-08*