---
product_id: 218547422
title: "Scientifique K+ Keratin Hardener Strengthener | Protect Nails | Avoid Breaking and Splitting | Supports Natural Keratinization | Multi-color, 0.16 Fl Oz"
brand: "mavala"
price: "144.28 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Mavala"
url: https://www.desertcart.tn/products/218547422-scientifique-k-keratin-hardener-strengthener-protect-nails-avoid-breaking-splitting
store_origin: TN
region: Tunisia
---

# Scientifique K+ Keratin Hardener Strengthener | Protect Nails | Avoid Breaking and Splitting | Supports Natural Keratinization | Multi-color, 0.16 Fl Oz

**Brand:** mavala
**Price:** 144.28 DT
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Scientifique K+ Keratin Hardener Strengthener | Protect Nails | Avoid Breaking and Splitting | Supports Natural Keratinization | Multi-color, 0.16 Fl Oz by mavala
- **How much does it cost?** 144.28 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/218547422-scientifique-k-keratin-hardener-strengthener-protect-nails-avoid-breaking-splitting)

## Best For

- mavala enthusiasts

## Why This Product

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

## Description

Review: رووعة - ممتاز
Review: Long and strong nails in 4 months of use - I made a comment after 2 months of use and came here to correct it. Well, my nails always took a long time to grow (because I always bit them), I did stretching in Brazil, and it ruined my nail (it became as thin as paper). I bought this product and used it for 1 month and a half and my nails were weaker than before, I actually thought it wasn't working, but I kept using it. Today, 3 and a half months later I am shocked!!!!! My nails grow in 1 week, I always have to file them (otherwise they get huge and make it difficult to wash my hair, lol). They are hard (they no longer bend, they no longer break). I'm taking 1 Biotin tablet just to help with growth. I saw some Brazilian reviews, where the girls say that the Mavala bottle lasted 1 year, and despite using it every week, and having been using it for almost 4 months, now I'm buying the second bottle (I still have a little in the bottle, but I don't want to interrupt the use, until a new bottle arrives). I think it's worth it. How I use it: I remove the cuticle, wash the nail with a brush (nail) and neutral soap (top and bottom of the nail), dry well, and then apply Mavala Top Coat. I wait for it to dry and apply the polish normally. I only use it when I get my nails done (1x/week). I posted a before photo (with cell phone in hand) and an after photo (with nailsssss).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B076DJRBFP |
| Best Sellers Rank | #150,242 in Beauty ( See Top 100 in Beauty ) #7,906 in Manicure & Pedicure Products |
| Brand | MAVALA |
| Customer Reviews | 4.3 out of 5 stars 12,025 Reviews |
| Item Form | Liquid |
| Item Weight | 35 Grams |
| Liquid Volume | 0.15 Fluid Ounces |
| Manufacturer Part Number | 99501 |
| Model Number | 99501 |
| Number of Items | 1 |
| Size | 1 count (Pack of 1) |
| Speciality | Strengthening and Hardening Nails |
| Specialty | Strengthening and Hardening Nails |
| Unit Count | 1 Count |

## Product Details

- **Brand:** MAVALA
- **Global Trade Identification Number:** 07618900995017
- **Item Form:** Liquid
- **Item Weight:** 5 Grams
- **Liquid Volume:** 5.0
- **Net Quantity:** 1 Count
- **Number of Items:** 1
- **Size:** 1 count (Pack of 1)
- **Speciality:** Strengthening and Hardening Nails

## Images

![Scientifique K+ Keratin Hardener Strengthener | Protect Nails | Avoid Breaking and Splitting | Supports Natural Keratinization | Multi-color, 0.16 Fl Oz - Image 1](https://m.media-amazon.com/images/I/61O4Ey4LHvL.jpg)

## Questions & Answers

**Q: What are the ingredients?**
A: This product stinks.  Buy the diamond by Revlon

**Q: If this product costs $137.50 per fluid ounce then 1/16 ounce should only cost about $8.60. Why the great discrepancy?**
A: The algorithm is a calculation created by Amazon internally.  We do not have anything to do with why Amazon would make such a claim.  Our price per bottle has remained the same since the asin was created over 2 years ago.   Our sincere apology for any discrepancy the Amazon algorithm has placed on this page.  Thank you for your interest in the Mavala Scientifique K+ product...

**Q: Is this product cruelty  free?**
A: The instructions don't say if it is cruelty free.

**Q: Can you use this product over a gel overlay manicure?**
A: The instructions say to ensure nails are free of nail poish and any other oily film.

## Customer Reviews

### ⭐⭐⭐⭐⭐ رووعة
*by A***A on 8 October 2025*

ممتاز

### ⭐⭐⭐⭐⭐ Long and strong nails in 4 months of use
*by R***E on 15 September 2024*

I made a comment after 2 months of use and came here to correct it. Well, my nails always took a long time to grow (because I always bit them), I did stretching in Brazil, and it ruined my nail (it became as thin as paper). I bought this product and used it for 1 month and a half and my nails were weaker than before, I actually thought it wasn't working, but I kept using it. Today, 3 and a half months later I am shocked!!!!! My nails grow in 1 week, I always have to file them (otherwise they get huge and make it difficult to wash my hair, lol). They are hard (they no longer bend, they no longer break). I'm taking 1 Biotin tablet just to help with growth. I saw some Brazilian reviews, where the girls say that the Mavala bottle lasted 1 year, and despite using it every week, and having been using it for almost 4 months, now I'm buying the second bottle (I still have a little in the bottle, but I don't want to interrupt the use, until a new bottle arrives). I think it's worth it. How I use it: I remove the cuticle, wash the nail with a brush (nail) and neutral soap (top and bottom of the nail), dry well, and then apply Mavala Top Coat. I wait for it to dry and apply the polish normally. I only use it when I get my nails done (1x/week). I posted a before photo (with cell phone in hand) and an after photo (with nailsssss).

### ⭐⭐⭐⭐⭐ Ein kleines Wundermittel
*by T***A on 20 August 2023*

Unglaublich effektiv. Schon nach zwei-maligem Anwenden habe ich einen Unterschied gemerkt. Im Urlaub bin ich zu einem Nageldesigner gegangen, der meine Nägel leider viel zu stark abgeschliffen hat. Das Resultat war katastrophal. Meine Nägel waren danach sehr dünn, brüchig und biegsam wie dünnes Papier. Meine Mutter, die generell dünne Nägel hat, konnte mir auch keinen Härter nennen, der so dünne, beschädigte Nägel effektiv unterstützt. Auf der Internet-Suche nach einem funktionierendem Nagelhärter bin ich auf Mavala Scientifique K+Nagelhärter ohne Formaldehyd gestossen. Aufgrund der vielen guten Rezessionen habe ich mich dafür entschieden - und bin nicht enttäuscht worden. Nach nur 1,5 Wochen sind meine Nägel nicht mehr von selbst eingerissen oder abgebrochen. Wenn ich mit dem Fingerkuppe auf die Oberseite der Nägel drückte, sind die diese nicht mehr - wie vorher - nach unten gebogen. Nach 3 Wochen habe ich die die Anwendung von "jedem zweiten Tag" auf jeden dritten oder vierten ausgedehnt. Dies passierte auf natürliche Weise, da ich aufgrund der Stärke der Nägel einfach vergessen habe, sie zu behandeln. Nach 4 Wochen hatte ich wieder starke, natürliche Nägel, die nicht brechen und lang wuchsen. Da mein Erfolg bei den beschädigten Nägeln so herausragend war, kaufte ich nach 2 Wochen auch für meine Mutter eine Flasche, die genauso gute Erfahrungen mit ihren natürlich dünnen Nägeln machte. Das erste Mal seit Jahrzehnten muss sie ihre Nägel nicht lackieren, damit sie nicht sofort brechen. Ich kann jedem mit brüchigen oder dünnen Nägeln empfehlen, dieses Produkt auszuprobieren.

## Frequently Bought Together

- MAVALA Scientifique K+ Keratin Hardener Strengthener | Protect Nails | Avoid Breaking and Splitting | Supports Natural Keratinization | Multi-color, 0.16 Fl Oz
- Mavala Nail Care Nailactan Nutritive, Nail Cream In Jar, Supports Damaged Nails, Nourishing, Moisturizing Nail Care Cuticle Cream, Promotes Nail Growth, 0.5 Ounce Jar
- MAVALA Mava-Strong Fortifying Base Coat | Healthy Nails | Strengthens and Protects Damaged Nails | Reduces Micro-Flaking and Dehydration | Colorless, Shiny 0.3 Ounce

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/218547422-scientifique-k-keratin-hardener-strengthener-protect-nails-avoid-breaking-splitting](https://www.desertcart.tn/products/218547422-scientifique-k-keratin-hardener-strengthener-protect-nails-avoid-breaking-splitting)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-18*