--- product_id: 50539143 title: "Scientifique K Plus Nail Hardener, 5 ml" brand: "mavala" price: "€ 41.87" currency: EUR in_stock: true reviews_count: 13 category: "Mavala" url: https://www.desertcart.sk/products/50539143-scientifique-k-plus-nail-hardener-5-ml store_origin: SK region: Slovakia --- # Formaldehyde-free formula Strengthens nails fast Infused with PRO Keratin Scientifique K Plus Nail Hardener, 5 ml **Brand:** mavala **Price:** € 41.87 **Availability:** ✅ In Stock ## Summary > 💅 Unlock your nails’ true strength and shine with Mavala Scientifique K+! ## Quick Answers - **What is this?** Scientifique K Plus Nail Hardener, 5 ml by mavala - **How much does it cost?** € 41.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/50539143-scientifique-k-plus-nail-hardener-5-ml) ## Best For - mavala enthusiasts ## Why This Product - Trusted mavala brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fortify Your Nails 💪:** Penetrates deeply to harden and restore natural nail growth - • **Keratin Power Boost 🧬:** Enriched with PRO Keratin to rebuild and protect fragile nails - • **Gentle Yet Effective 🌿:** Formulated without harsh formaldehyde for safe, everyday use - • **Long-Lasting Strength ⏳:** Use 2-3 times weekly for visibly stronger nails in weeks - • **Swiss Precision Care 🇨🇭:** Trusted Swiss formula delivering salon-quality nail health at home ## Overview Mavala Scientifique K+ Nail Hardener is a 5 ml solution designed to strengthen soft, splitting, or flaking nails by penetrating the nail plate and enhancing natural keratinization. Infused with PRO Keratin and free from formaldehyde, it promotes healthier, stronger nails with regular use, making it a top choice for professionals seeking durable, salon-quality nail care at home. ## Description Product Description NEW!! Penetrating nail hardener that acts on the natural keratinization of the nail plate to prevent splitting and flaking. Indications To harden nails. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Ingredients Water (Aqua), Dimethyl Urea, Alcohol, PPG-26-Buteth-26, Sodium Laureth Sulfate, Disodium Phosphate, PEG-40 Hydrogenated Castor Oil, Allium Sativum (Garlic) Bulb Extract, Chamomilla Recutita (Matricaria) Flower Extract, Citrus Limon (Lemon) Peel Oil, Eucalyptus Globulus Leaf Oil, Pistacia Lentiscus (Mastic) Gum, Caprylic/Capric Triglyceride, Cocamidopropyl Betaine, Ethylhexylglycerin, Phenoxyethanol, Ammonium Hydroxide, Benzoic Acid, Citric Acid, Sodium Benzoate, Sodium Chloride, Blue 1 (CI 42090), Limonene, Citral. [F995/1] Directions Apply the product from the center to the tip of the nail. Avoid touching the cuticles and perimeter Let it penetrate for 1 minute by holding hands down so that it does not run on cuticles. Use 2-3 times a week until you get your desired nails. Then, or applications months only. Safety Warning External use See more Review: Finally, Strong, Healthy Nails After Gel Removal! - After removing my gel nails, my natural nails were extremely thin, weak, and prone to chipping and breaking. At first, nothing seemed to help because my nails were so damaged from the gel removal. However, once my natural nail started to grow out a little, Mavala Scientifique K+ Nail Hardener made a huge difference. This product really helped strengthen and protect my nails. I noticed that they stopped chipping and breaking as easily, and they finally had a chance to grow properly. It’s important to know that it won’t work miracles immediately after removing gel nails when the nails are paper-thin, but once your natural nail begins to recover, this product is fantastic. I only apply it once a week, which is exactly how it’s meant to be used, and I also make sure to use nail oils regularly to keep my nails hydrated. That combination worked really well for me. Now my natural nails look so healthy and strong again. I still use it once a week or every two weeks just to maintain the strength and keep my nails in good condition. I’m really happy with the results and would definitely recommend it to anyone trying to grow and strengthen their natural nails after gel removal. Review: Great product - I have used this product before and I am always happy with it it sinks into nail really well it’s ideal for people with weak nails when they do a job that you can’t wear anything on nails ## Features - Mavala Scientifique K+ allows soft, flaking or splitting nails to become healthy and strong - It's formula hardens the nail plate so that the nail can restore it's normal growth - Infused with PRO Keratin - Formulated without formaldehyde. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076DJRBFP | | ASIN | B076DJRBFP | | Batteries | Unknown batteries required. | | Best Sellers Rank | 9,944 in Beauty ( See Top 100 in Beauty ) 20 in Nail Strengthening | | Brand Name | MAVALA | | Customer Reviews | 4.4 4.4 out of 5 stars (11,888) | | Customer reviews | 4.4 4.4 out of 5 stars (11,888) | | Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. | | Is discontinued by manufacturer | No | | Item Form | Gel | | Item Weight | 35 Grams | | Item model number | 99501 | | Language | French | | Liquid Volume | 0.15 Fluid Ounces | | Manufacturer | Mavala | | Manufacturer | Mavala | | Manufacturer Part Number | 99501 | | Model Number | 99501 | | Number of Items | 1 | | Product Dimensions | 2.54 x 2.54 x 6.99 cm; 35 g | | Size | 5 ml (Pack of 1) | | Specialty | Strengthening and Hardening Nails | | Unit Count | 5.0 millilitre | ## Product Details - **Brand:** MAVALA - **Item form:** Gel - **Item weight:** 35 Grams - **Liquid volume:** 0.15 Fluid Ounces - **Manufacturer:** Mavala - **Number of items:** 1 - **Size:** 5 ml (Pack of 1) - **Speciality:** Strengthening and Hardening Nails - **Unit count:** 5.0 millilitre ## Images ![Scientifique K Plus Nail Hardener, 5 ml - Image 1](https://m.media-amazon.com/images/I/61O4Ey4LHvL.jpg) ## Questions & Answers **Q: I normally buy the mavala stop biting nails to help my son, does this one do the same (help stop biting nails) and if not can u use them both together** A: Does not do the same thing, this is a nail hardener only. Would have thought you could possibly use them in conjunction, though cannot see what the point of that would be. **Q: I bite my nails and now they are growing they break easy, so would this help strengthen them as they grow** A: Yes I believe so, I bit my nails for about 20 years and they were thin when I allowed them to grow. This will make them less brittle and then I noticed my nails becoming thicker after growing out for a cycle or 2 **Q: Does this soak into the nail or leave a layer of nail varnish?** A: It soaks into the nail leaving no trace. It is excellent for strengthening nails along with OPI nail strengthener 2 coats on top . **Q: Is this meant to smell absolutely awful? I either have one out of a bad batch/out of date or it’s just meant to smell absolutely awful!?** A: It does smell a bit but once it dries on your nails it’s fine. Try not to smell it!! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Finally, Strong, Healthy Nails After Gel Removal! *by E***A on 11 March 2026* After removing my gel nails, my natural nails were extremely thin, weak, and prone to chipping and breaking. At first, nothing seemed to help because my nails were so damaged from the gel removal. However, once my natural nail started to grow out a little, Mavala Scientifique K+ Nail Hardener made a huge difference. This product really helped strengthen and protect my nails. I noticed that they stopped chipping and breaking as easily, and they finally had a chance to grow properly. It’s important to know that it won’t work miracles immediately after removing gel nails when the nails are paper-thin, but once your natural nail begins to recover, this product is fantastic. I only apply it once a week, which is exactly how it’s meant to be used, and I also make sure to use nail oils regularly to keep my nails hydrated. That combination worked really well for me. Now my natural nails look so healthy and strong again. I still use it once a week or every two weeks just to maintain the strength and keep my nails in good condition. I’m really happy with the results and would definitely recommend it to anyone trying to grow and strengthen their natural nails after gel removal. ### ⭐⭐⭐⭐⭐ Great product *by K***N on 14 February 2026* I have used this product before and I am always happy with it it sinks into nail really well it’s ideal for people with weak nails when they do a job that you can’t wear anything on nails ### ⭐⭐⭐⭐ Seems to be ok *by J***O on 8 April 2026* Not sure it’s working ## 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.sk/products/50539143-scientifique-k-plus-nail-hardener-5-ml](https://www.desertcart.sk/products/50539143-scientifique-k-plus-nail-hardener-5-ml) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-07*