---
product_id: 1568735
title: "BL Lashes Black Diamond | Lash Sealant for Extensions — Extends Fills to 3-4 Weeks | Dark Mascara-Like Finish, Waterproof Coating, Brush Applicator (0.24 fl.oz)"
brand: "bl bl"
price: "VT4932"
currency: VUV
in_stock: true
reviews_count: 13
category: "Bl Bl"
url: https://www.desertcart.vu/products/1568735-bl-lashes-black-diamond-lash-sealant-for-extensions-extends-fills
store_origin: VU
region: Vanuatu
---

# 96% improved lash cleansing ease Nourishes with Biotin & Hyaluronic Acid 37% better water & saltwater retention BL Lashes Black Diamond | Lash Sealant for Extensions — Extends Fills to 3-4 Weeks | Dark Mascara-Like Finish, Waterproof Coating, Brush Applicator (0.24 fl.oz)

**Brand:** bl bl
**Price:** VT4932
**Availability:** ✅ In Stock

## Summary

> 💎 Seal the deal on stunning lashes that last longer and shine brighter!

## Quick Answers

- **What is this?** BL Lashes Black Diamond | Lash Sealant for Extensions — Extends Fills to 3-4 Weeks | Dark Mascara-Like Finish, Waterproof Coating, Brush Applicator (0.24 fl.oz) by bl bl
- **How much does it cost?** VT4932 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/1568735-bl-lashes-black-diamond-lash-sealant-for-extensions-extends-fills)

## Best For

- bl bl enthusiasts

## Why This Product

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

## Key Features

- • **Gentle Yet Powerful:** Dermatologist-approved for sensitive skin with zero irritation in 24-hour tests.
- • **Extend Your Glam Game:** Boost lash extension retention by 37% even in water and sweat.
- • **Effortless Clean Routine:** Rinse off easily with 96% improved washability—no compromise on lash longevity.
- • **Lash Health Meets Luxury:** Infused with Biotin, Panthenol & Hyaluronic Acid for fuller, healthier lashes daily.
- • **Flawless All-Day Definition:** Smooths and aligns lashes for that polished, salon-perfect look.

## Overview

BL Lashes Black Diamond Lash Sealant is a waterproof, overnighter coating that enhances eyelash extension retention by 37%, protects against sweat and irritants, and improves cleansing by 96%. Formulated with nourishing ingredients like Biotin and Hyaluronic Acid, it’s gentle on sensitive skin and keeps lashes perfectly aligned and salon-fresh for weeks.

## Description

Your Lash Extension Solution Visit the Store Your Lash Extension Solution Visit the Store What makes our products unique? As pioneers in the eyelash extension industry, BL Lashes is dedicated to upholding this legacy by consistently delivering top-quality products. We take pride in our ISO 9001 and ISO 14001 certifications, ensuring the highest standards of quality and sustainability. What problem are we solving? We help the customer achieve their desired look enhancing beauty and confidence. How do I know this product is authentic? Kindly ensure that you are purchasing the product from BL BL desertcart Store. What makes our products unique? As pioneers in the eyelash extension industry, BL Lashes is dedicated to upholding this legacy by consistently delivering top-quality products. We take pride in our ISO 9001 and ISO 14001 certifications, ensuring the highest standards of quality and sustainability. What problem are we solving? We help the customer achieve their desired look enhancing beauty and confidence. How do I know this product is authentic? Kindly ensure that you are purchasing the product from BL BL desertcart Store.

Review: High Quality Product - I absolutely love this product! One of the most unique features is the bottle does empty at the end of use! Therefore, you use every bit of product. Always shake well before every use! Very good for individuals with sensitive eyes! Hope this helps!
Review: Extends my lash life between refills dramatically - I go for a refill every 2 weeks. Before using this, 90% of my lashes were gone by refill time and it took 45 minutes or more for my 2 week refill. Now, around 40% of my lashes remain at refill time and refills are taking 30 minutes.

## Features

- SHAKE WELL, THEN SEAL FOR LONGER-LASTING FILLS: Customers report extending fills from every 2 weeks to 3-4 weeks with consistent daily use. Apply one thin coat to completely dry lashes after every wash — waterproof protection against sweat, humidity, and daily wear. Shake the bottle for 10 seconds before every use.
- MASCARA-LIKE FINISH WITHOUT THE HASSLE: Dark tinted coating defines and aligns each lash extension for a fuller, polished look — even rogue lashes snap back into place. Delivers the volume of mascara with the protection of a professional sealant, without clumping or flaking.
- LASH TECHNICIANS CHOOSE IT TOO: Used and recommended by professional lash artists in their salons. One verified lash tech reviewer wrote: "My clients' retention is out of this world with this product" — professional-grade formula trusted for both salon application and daily home maintenance.
- GENTLE NOURISHMENT FOR NATURAL LASHES: Infused with Biotin, Panthenol, Allantoin, and Hyaluronic Acid — nourishing your natural lashes while keeping extensions in place. Intertek-certified with zero irritation in a 24-hour patch test. Apply to lashes only; avoid direct eye contact.
- RINSES CLEAN WITH WARM WATER — NO REMOVER NEEDED: Intertek-verified formula improves washability by 96%. Simply rinse with lukewarm water — no special remover, no residue, no fuss. The brush applicator is thin enough to reach every lash, making it easy to apply even half-asleep.
- HOW TO GET THE BEST RESULTS: Shake the bottle well for 10 seconds before every use — the pigment settles and shaking restores full color and consistency. Apply one thin coat to completely dry lashes only. Do not over-apply — a little goes a long way, and the bottle lasts longer than its size suggests.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007PV2JV0 |
| Best Sellers Rank | #36,706 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #157 in False Eyelash Adhesives |
| Brand | BL BL |
| Brand Name | BL BL |
| Color | Black Diamond |
| Customer Reviews | 4.3 out of 5 stars 2,699 Reviews |
| Item Dimensions | 5 x 1 x 1 inches |
| Item Form | Individual |
| Item dimensions L x W x H | 5 x 1 x 1 inches |
| Manufacturer | AG Co., Ltd |
| Material | Polymer |
| Material Feature | Cruelty Free, Fragrance Free, Hypoallergenic |
| Material Features | Cruelty Free, Fragrance Free, Hypoallergenic |
| Material Type | Polymer |
| Mount Type | Glue-On |
| Number of Items | 1 |
| UPC | 773490278647 |

## Product Details

- **Color:** Black Diamond
- **Brand:** BL BL
- **Item dimensions L x W x H:** 5 x 1 x 1 inches
- **Material Feature:** Synthetic Fibers
- **Item Form:** Individual

## Images

![BL Lashes Black Diamond | Lash Sealant for Extensions — Extends Fills to 3-4 Weeks | Dark Mascara-Like Finish, Waterproof Coating, Brush Applicator (0.24 fl.oz) - Image 1](https://m.media-amazon.com/images/I/61t9Rc-QPhL.jpg)
![BL Lashes Black Diamond | Lash Sealant for Extensions — Extends Fills to 3-4 Weeks | Dark Mascara-Like Finish, Waterproof Coating, Brush Applicator (0.24 fl.oz) - Image 2](https://m.media-amazon.com/images/I/91fdM0ysT6L.jpg)
![BL Lashes Black Diamond | Lash Sealant for Extensions — Extends Fills to 3-4 Weeks | Dark Mascara-Like Finish, Waterproof Coating, Brush Applicator (0.24 fl.oz) - Image 3](https://m.media-amazon.com/images/I/81xGLKIdAzL.jpg)
![BL Lashes Black Diamond | Lash Sealant for Extensions — Extends Fills to 3-4 Weeks | Dark Mascara-Like Finish, Waterproof Coating, Brush Applicator (0.24 fl.oz) - Image 4](https://m.media-amazon.com/images/I/81r9fbBxeVL.jpg)
![BL Lashes Black Diamond | Lash Sealant for Extensions — Extends Fills to 3-4 Weeks | Dark Mascara-Like Finish, Waterproof Coating, Brush Applicator (0.24 fl.oz) - Image 5](https://m.media-amazon.com/images/I/81FE68ykrtL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ High Quality Product
*by D***N on May 2, 2026*

I absolutely love this product! One of the most unique features is the bottle does empty at the end of use! Therefore, you use every bit of product. Always shake well before every use! Very good for individuals with sensitive eyes! Hope this helps!

### ⭐⭐⭐⭐⭐ Extends my lash life between refills dramatically
*by K***R on March 16, 2026*

I go for a refill every 2 weeks. Before using this, 90% of my lashes were gone by refill time and it took 45 minutes or more for my 2 week refill. Now, around 40% of my lashes remain at refill time and refills are taking 30 minutes.

### ⭐⭐⭐⭐⭐ Great for clusters
*by S***R on March 31, 2026*

I use this to seal the glue with my lash clusters. All the glues that I tried to came with the glue and sealant as a combo, would leave a white residue. This seals my clusters great and is easy to apply.

## Frequently Bought Together

- BL Lashes Black Diamond Lash Coating Sealant, Eyelash Extension Aftercare, Protective topcoat lash coating, 0.24 fl.oz
- STACY LASH Eyelash Extension Shampoo + Brush / 1.69 fl.oz / 50ml / Eyelid Foaming Cleanser/Wash for Extensions & Natural Lashes/Safe Makeup Remover/Supplies for Professional & Home Use
- BL Lashes Crystal Drop Lash Coating Sealant, Eyelash Extension Aftercare, Protective Topcoat, 0.24 fl.oz

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**Shop now:** [https://www.desertcart.vu/products/1568735-bl-lashes-black-diamond-lash-sealant-for-extensions-extends-fills](https://www.desertcart.vu/products/1568735-bl-lashes-black-diamond-lash-sealant-for-extensions-extends-fills)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-16*