--- product_id: 83042964 title: "Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish by Nail-Aid" brand: "nail-aid" price: "142.65 DT" currency: TND in_stock: true reviews_count: 13 category: "Nail Aid" url: https://www.desertcart.tn/products/83042964-nail-aid-biotin-ultimate-strength-vitamin-b7-nail-polish-by store_origin: TN region: Tunisia --- # Long-lasting anti-chip finish Biotin-powered strength boost Visible results in 3 days Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish by Nail-Aid **Brand:** nail-aid **Price:** 142.65 DT **Availability:** ✅ In Stock ## Summary > 💅 Strengthen your nails, elevate your confidence. ## Quick Answers - **What is this?** Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish by Nail-Aid by nail-aid - **How much does it cost?** 142.65 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/83042964-nail-aid-biotin-ultimate-strength-vitamin-b7-nail-polish-by) ## Best For - nail-aid enthusiasts ## Why This Product - Trusted nail-aid brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fast-Acting Formula:** Noticeably stronger, harder nails in as little as 3 days—because time is precious. - • **Biotin-Infused Power:** Concentrated Vitamin B7 reinforces fragile nails for less peeling and breakage. - • **Clean & Cruelty-Free:** 20-free formula that’s kind to nails and conscious consumers alike. - • **Dual-Use Versatility:** Wear alone or as a base and top coat to extend your manicure’s flawless look. - • **Professional-Quality Care:** Salon-grade nail hardener that transforms weak nails into naturally stronger ones. ## Overview Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish is a fast-drying, biotin-enriched nail hardener designed to visibly strengthen and protect nails within 3 days. Its clean, cruelty-free formula reduces peeling, splitting, and breakage while providing a durable anti-chip finish. Suitable for use alone or as a base and top coat, it delivers professional-quality nail care that promotes healthier, longer-lasting nails. ## Description Product Description Transform weak, peeled nails with Nail-Aid Biotin Ultimate Strength, an advanced nail strengthening treatment powered by concentrated biotin (Vitamin B7) to help reinforce fragile nails and reduce peeling, splitting and breakage. Designed to deliver a visible enhancement in as little as 3 days, this fast-drying formula helps nails grow stronger, harder and longer while creating a long-lasting protective anti-chip finish. Wear alone for naturally healthy looking nails or use as a strengthening base coat and glossy top coat to prolong manicure use. Formulated with a clean 20 free and cruelty-free formula, Biotin Ultimate Strength provides professional-quality nail care that helps restore healthier, stronger natural nails with every application. Ingredients Ethyl acetate, butyl acetate, nitrocellulose, phthalic anhydride/trimellitic anhydride/glycol copolymer, isopropyl alcohol, acetyl tributyl citrate, stearalkonium hectorite, biotin, calcium pantothenate (vitamin B5), cholecalciferol (vitamin D), acrylates copolylates ymer, Ether tocrite ylene, CI 60725 (Violet 2) Directions Apply directly to nails, preferably with a brush or similar tool, and use regularly to strengthen and repair damaged nails. Review: No complaints - Fantastic product, noticeable difference during and after use. Very strong coating when using it and strengthens the nail underneath so you develop naturally stronger nails the more you use it. Easy to use and cant really fault it. One of the best ones of its kind that I've tried for an affordable price Review: highly recommend - fantastic product changed my nails completely I bought both this one and the sapphire strength one and use them alternate days could not be happier highly recommend ## Features - Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01DG10XA6 | | Best Sellers Rank | 28,689 in Beauty ( See Top 100 in Beauty ) 422 in Nail Polish | | Brand | Nail-Aid | | Brand Name | Nail-Aid | | Country Of Origin | USA | | Customer Reviews | 4.1 out of 5 stars 14,333 Reviews | | Item Form | Liquid | | Item Weight | 2.4 Ounces | | Item form | Liquid | | Item weight | 2.4 Ounces | | Liquid Volume | 0.55 Fluid Ounces | | Liquid volume | 0.55 Fluid Ounces | | Manufacturer | Nail-Aid | | Manufacturer Part Number | 08873 | | Model Number | 08873 | | Number of Items | 1 | | Number of items | 1 | | Size | 15 ml (Pack of 1) | | Speciality | Nail Hardener | | Specialty | Nail Hardener | | UPC | 839186088737 | | Unit Count | 15.0 millilitre | ## Product Details - **Brand:** Nail-Aid - **Item form:** Liquid - **Item weight:** 91 g - **Liquid volume:** 0.55 Fluid Ounces - **Manufacturer:** Nail-Aid - **Number of items:** 1 - **Size:** 15 ml (Pack of 1) - **Speciality:** Nail Hardener - **UPC:** 839186088737 - **Unit count:** 15.0 millilitre ## Images ![Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish by Nail-Aid - Image 1](https://m.media-amazon.com/images/I/71ykSzVUK1L.jpg) ![Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish by Nail-Aid - Image 2](https://m.media-amazon.com/images/I/719n++PaXlL.jpg) ![Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish by Nail-Aid - Image 3](https://m.media-amazon.com/images/I/51gWFw+kbWL.jpg) ![Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish by Nail-Aid - Image 4](https://m.media-amazon.com/images/I/714GmLfRl6S.jpg) ![Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish by Nail-Aid - Image 5](https://m.media-amazon.com/images/I/81+La6K39KL.jpg) ## Questions & Answers **Q: Does this help whiten your nail** A: Nail-Aid Biotin neither whiten nor strengthened my nails. Unfortunately, I purchased two bottles of this product. Initially, it appeared my nails were getting stronger. But not only did they begin to break again, but the condition of my nails also worsened. Moreover, the contents of this product are not listed, so you are not aware of what you are putting on your nails. The merchant does offer a return policy but the shipping cost that the merchant require is either equal or greater than the Nail-Aid product. As such, you are stuck with a product that does not live up to your expectations nor their claim of strengthening your nail. **Q: Which one to buy for vertical split nails?** A: I purchased both and wish I only purchased the Keratin because the Biotin polish peeled right off my nail the following day. I’ve never seen anything like that before and it was applied over their Keratin polish so either it was so thick that it didn’t lay down flat or it’s not compatible with their own Keratin nail strengthener. The Keratin nail strengthener was nicer and laid down flat on the nail. I’m very disappointed in this Biotin polish and I’ve used several brands (including Sally Hanson) which never peeled off in a solid layer as if it was nail resistant like this did. **Q: which is better for nails, keratin or biotin?** A: If your nails are damaged, it’s better biotin **Q: Is there suppose to be a brush on the end of the applicator?** A: Yes it has a brush on the end ## Customer Reviews ### ⭐⭐⭐⭐⭐ No complaints *by G***O on 5 March 2026* Fantastic product, noticeable difference during and after use. Very strong coating when using it and strengthens the nail underneath so you develop naturally stronger nails the more you use it. Easy to use and cant really fault it. One of the best ones of its kind that I've tried for an affordable price ### ⭐⭐⭐⭐⭐ highly recommend *by H***S on 13 July 2026* fantastic product changed my nails completely I bought both this one and the sapphire strength one and use them alternate days could not be happier highly recommend ### ⭐⭐⭐⭐ use consistently *by M***R on 2 March 2026* helps cracked nails ## Frequently Bought Together - Nail-Aid Biotin Ultimate Strength - Nail Treatment & Strengthener - Clear, 0.55 Fl Oz (08873) - Nail-Aid Keratin 3 Day Growth Nail Treatment & Strengthener, Clear, 0.55 Fl Oz - Onyx Professional Hard as Hoof Nail Strengthening Cream with Coconut Scent, Nail Growth & Conditioning Cuticle Cream Stops Splits, Chips, Cracks & Strengthens Nails, 1 oz --- ## 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/83042964-nail-aid-biotin-ultimate-strength-vitamin-b7-nail-polish-by](https://www.desertcart.tn/products/83042964-nail-aid-biotin-ultimate-strength-vitamin-b7-nail-polish-by) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-31*