CLEAR COATING THAT PROTECTS LASH EXTENSIONS BL's Crystal Drop Coating Sealant is an eyelash extension sealant that can be used straight after lash extension application and as part of a daily aftercare routine. This best selling lash sealant prolongs the life of lash extensions by applying a thin, glossy coating to protect the adhesive bond from dirt, debris and sweat. Protects the adhesive bond Extends life of extensions Buy in bulk and retail in your salon Clear in colour Cruelty Free