---
product_id: 1568735
title: "BL Lashes Black Diamond Lash Sealant for Eyelash Extensions | Overnighter Lash Sealer & Waterproof Coating for Retention & Aftercare (0.24 fl.oz, Black)"
brand: "bl bl"
price: "₪102"
currency: ILS
in_stock: true
reviews_count: 8
category: "Bl Bl"
url: https://www.desertcart.co.il/products/1568735-bl-lashes-black-diamond-lash-sealant-for-eyelash-extensions-overnighter
store_origin: IL
region: Israel
---

# 96% improved lash cleansing ease Nourishes with Biotin & Hyaluronic Acid 37% better water & saltwater retention BL Lashes Black Diamond Lash Sealant for Eyelash Extensions | Overnighter Lash Sealer & Waterproof Coating for Retention & Aftercare (0.24 fl.oz, Black)

**Brand:** bl bl
**Price:** ₪102
**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 Eyelash Extensions | Overnighter Lash Sealer & Waterproof Coating for Retention & Aftercare (0.24 fl.oz, Black) by bl bl
- **How much does it cost?** ₪102 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/1568735-bl-lashes-black-diamond-lash-sealant-for-eyelash-extensions-overnighter)

## 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

desertcart.com: BL Lashes Black Diamond Lash Sealant for Eyelash Extensions | Overnighter Lash Sealer & Waterproof Coating for Retention & Aftercare (0.24 fl.oz, Black) : Beauty & Personal Care

Review: This sealant adds time to wearing my lash extensions! - Before using this sealant, most of my lashes were off by my two week fill. Since I've been using this product, I can go three weeks before I need a fill to my eyelash extensions.. I brush the product on both sides of my lashes daily. The money is well worth the assurance that your lashes will last longer and your eyes aren't going to be naked by the time you need your next fill. I've ordered three tubes now. For as much as I use the product, one tube lasts me several months. Its's a great product and well worth the money.
Review: Eyelashes, so addicting! - Ok, I finally tried eyelash extensions for the holidays. I love the look but I don't like the upkeep. I purchased this black diamond coating and saw a huge difference from my first fill to my second fill. The first fill I waited 2.5 weeks before I had the fill and I was not using this product, now I am at 3.5 weeks and credit this product for my lashes still looking so great. I put it on in the morning and it straightens out my lashes very nicely. I let the product dry and then gently brush out the lashes with a dry lash brush. I don't know how long I will keep the eyelash extensions. I don't like the itchey feeling I get sometimes and I don't like it that I can't wash my whole face and use all the eye shadows I like to play around with. I think I'm going to TRY to find a eyelash serum that really works and will grow my own lashes! The trick is finding one that actually works!

## Features

- [Longer-Lasting Lash Extensions] Black Diamond Coating lash sealant for eyelashes extension improves retention by 37% in water and saltwater. This waterproof lash sealant protects lashes from sweat and irritants, helping your eyelash extensions last longer with less maintenance.
- [Flawless Lash Alignment] Achieve a polished, salon look with BL’s coating sealant for lash extensions. Our lash sealer smooths and aligns eyelash extensions, keeping them neat, defined, and perfectly styled all day long.
- [Effortless Cleansing] BL’s eyelash sealant improves washability by 96%, verified by Intertek. This lash extension aftercare formula is easy to rinse with warm water while maintaining lash retention and a clean look.
- [Sensitive Skin Approved] BL’s overnighter lash sealer is certified safe by Intertek. Gentle enough for sensitive skin, this eyelash extension sealer offers lasting protection with zero irritation in a 24-hour patch test.
- [Nourishing Formula] BL’s lash coating sealant nourishes lashes with Biotin, Panthenol, Allantoin, and Hyaluronic Acid. This eyelash sealer for lash extensions promotes fuller, healthier lashes with every use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007PV2JV0 |
| Best Sellers Rank | #41,399 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #751 in False Eyelashes |
| Brand | BL BL |
| Brand Name | BL BL |
| Color | Black Diamond |
| Customer Reviews | 4.3 out of 5 stars 2,685 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 Feature | Synthetic Fibers |
| Material Features | Synthetic Fibers |
| Mount Type | Eyelash Glue |
| Mounting Type | Eyelash Glue |
| 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 Eyelash Extensions | Overnighter Lash Sealer & Waterproof Coating for Retention & Aftercare (0.24 fl.oz, Black) - Image 1](https://m.media-amazon.com/images/I/716KQQQFriL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This sealant adds time to wearing my lash extensions!
*by T***I on June 13, 2020*

Before using this sealant, most of my lashes were off by my two week fill. Since I've been using this product, I can go three weeks before I need a fill to my eyelash extensions.. I brush the product on both sides of my lashes daily. The money is well worth the assurance that your lashes will last longer and your eyes aren't going to be naked by the time you need your next fill. I've ordered three tubes now. For as much as I use the product, one tube lasts me several months. Its's a great product and well worth the money.

### ⭐⭐⭐⭐⭐ Eyelashes, so addicting!
*by C***E on December 29, 2015*

Ok, I finally tried eyelash extensions for the holidays. I love the look but I don't like the upkeep. I purchased this black diamond coating and saw a huge difference from my first fill to my second fill. The first fill I waited 2.5 weeks before I had the fill and I was not using this product, now I am at 3.5 weeks and credit this product for my lashes still looking so great. I put it on in the morning and it straightens out my lashes very nicely. I let the product dry and then gently brush out the lashes with a dry lash brush. I don't know how long I will keep the eyelash extensions. I don't like the itchey feeling I get sometimes and I don't like it that I can't wash my whole face and use all the eye shadows I like to play around with. I think I'm going to TRY to find a eyelash serum that really works and will grow my own lashes! The trick is finding one that actually works!

### ⭐⭐⭐⭐⭐ Lashes
*by S***E on August 11, 2025*

This brand is tried and tested

## 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.co.il/products/1568735-bl-lashes-black-diamond-lash-sealant-for-eyelash-extensions-overnighter](https://www.desertcart.co.il/products/1568735-bl-lashes-black-diamond-lash-sealant-for-eyelash-extensions-overnighter)

---

*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-02-10*