What is Sealing? Sealing is the process of applying an oil or a butter or cream to lock moisture into the hair by filling in the gaps in the cuticle to prevent water from escaping. POSTS RELATED TO THIS TERM How To Seal Hair Effectively In 5 Steps Top 3 Sealing Oils For Relaxed Or Chemically Treated Hair – Black … Back To Basics: Moisturizing And Sealing Your Hair MORE FROM BHI 5 Reasons We Should Not Label Our Natural Hair ... Gorgeous! Summer Twist shared by Virginia Gawjus! @curlssodope Amazing transformation via @nikki_h_stylist Pixie Gorgeous & Those Glasses Tho! @melgizel... ShareTweetPinEmail Black Hair Information > Glossary > What is Sealing?