Blink Black Diamond longer life sealant is one of the best after care eyelash extension products on the market. 
This sealant forms a barrier to protect against the elements that break down the adhesive.
This Blink Black Diamond not only gives the extensions a maximum bond but also gives them a beautiful, glossy coating.
For best results, use this sealant every other day after your first 48 hours after application to extend the life of your eyelash extensions.

Black Diamond Lash Sealant