---
product_id: 83042964
title: "Biotin Ultimate Strength, .55 fl oz"
brand: "nail-aid"
price: "€ 21.79"
currency: EUR
in_stock: true
reviews_count: 13
category: "Nail Aid"
url: https://www.desertcart.fi/products/83042964-biotin-ultimate-strength-55-fl-oz
store_origin: FI
region: Finland
---

# Visible repair in weeks Biotin-powered strength boost Proudly USA-made quality Biotin Ultimate Strength, .55 fl oz

**Brand:** nail-aid
**Price:** € 21.79
**Availability:** ✅ In Stock

## Summary

> 💅 Strengthen your nails, elevate your confidence — don’t let weak nails hold you back!

## Quick Answers

- **What is this?** Biotin Ultimate Strength, .55 fl oz by nail-aid
- **How much does it cost?** € 21.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/83042964-biotin-ultimate-strength-55-fl-oz)

## 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

- • **Rapid Repair Action:** Noticeably strengthens and repairs damaged nails in just weeks
- • **Biotin-Infused Formula:** Fortify nails with Vitamin B7 for lasting resilience
- • **Lightweight & Non-Greasy:** Smooth liquid polish that absorbs quickly without residue
- • **Compact & Travel-Friendly:** 0.55 fl oz size fits perfectly in your on-the-go beauty arsenal
- • **Professional-Grade Nail Hardener:** Trusted by thousands to restore nails post-acrylic or gel damage

## Overview

Nail-Aid Biotin Ultimate Strength is a USA-made, vitamin B7-enriched nail polish designed to repair and strengthen damaged nails. With a lightweight, fast-absorbing formula, it delivers visible results in weeks, making it a top choice for professionals recovering from acrylic or gel nail damage. Compact and easy to apply, it’s the ultimate nail hardener for resilient, healthy nails.

## Description

Product description Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish 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) 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); }); }); Directions Apply directly to nails, preferably with a brush or similar tool, and use regularly to strengthen and repair damaged nails. See more

Review: Great product. - Great product helped my nails recover fully after having 4 months of acrylic nails which ruined them. This repaired and helped my nails grow delighted!
Review: It really helped strengthen - Ok... So I messed my nails up with gels, biab and not getting them properly taken off. My nails were so thin and weak... Disaster! So scrolled through desertcart and found this. I bought it. I used it as instructed pretty intensely at first, then less so after about 2 months. I'm probably 5 or so months down the line and a lot of the damage has grown out now and my nails are growing and are stronger. I think this really helped me. I could certainly feel after I applied a couple of coats that my nails felt stronger, when they were dare I could literally bend them but with this on it was stronger and gave more protection. I would recommend this to anyone suffering with nail weakness

## Features

- Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01DG10XA6 |
| ASIN  | B01DG10XA6 |
| Best Sellers Rank | 22,462 in Beauty ( See Top 100 in Beauty ) 318 in Nail Polish |
| Brand | Nail-Aid |
| Country of origin  | USA |
| Customer Reviews | 4.1 4.1 out of 5 stars (13,730) |
| Customer reviews | 4.1 4.1 out of 5 stars (13,730) |
| Date First Available | 7 Aug. 2016 |
| 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. |
| Format | Liquid |
| Is discontinued by manufacturer  | No |
| Item dimensions L x W x H | 30 x 73 x 140 millimetres |
| Item model number | 08873 |
| Item model number  | 08873 |
| Item weight | 2.4 Ounces |
| Manufacturer | Nail-Aid |
| Manufacturer  | Nail-Aid |
| Package Weight | 0.07 Kilograms |
| Package dimensions | 14 x 7 x 2.8 centimetres |
| Product Dimensions | 3.05 x 7.3 x 13.97 cm; 68.04 g |
| Product Dimensions  | 3.05 x 7.3 x 13.97 cm; 68.04 g |
| Speciality | Nail Hardener |
| Volume | 0.55 Fluid Ounces |

## Product Details

- **Brand:** Nail-Aid
- **Item form:** Liquid
- **Item weight:** 2.4 Ounces
- **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(s)

## Images

![Biotin Ultimate Strength, .55 fl oz - Image 1](https://m.media-amazon.com/images/I/71ykSzVUK1L.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

### ⭐⭐⭐⭐⭐ Great product.
*by A***R on 29 December 2025*

Great product helped my nails recover fully after having 4 months of acrylic nails which ruined them. This repaired and helped my nails grow delighted!

### ⭐⭐⭐⭐⭐ It really helped strengthen
*by F***Y on 22 June 2025*

Ok... So I messed my nails up with gels, biab and not getting them properly taken off. My nails were so thin and weak... Disaster! So scrolled through amazon and found this. I bought it. I used it as instructed pretty intensely at first, then less so after about 2 months. I'm probably 5 or so months down the line and a lot of the damage has grown out now and my nails are growing and are stronger. I think this really helped me. I could certainly feel after I applied a couple of coats that my nails felt stronger, when they were dare I could literally bend them but with this on it was stronger and gave more protection. I would recommend this to anyone suffering with nail weakness

### ⭐⭐⭐⭐ Good
*by M***K on 2 March 2025*

I think it’s working but it’s taking a while for the results to show

## 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

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**Shop now:** [https://www.desertcart.fi/products/83042964-biotin-ultimate-strength-55-fl-oz](https://www.desertcart.fi/products/83042964-biotin-ultimate-strength-55-fl-oz)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-09*