What Is EVOO? EVOO stands for Extra Virgin Olive Oil. It is an oil used for shine and to seal in moisture. It may also be used as a pre- shampoo treatment. POSTS RELATED TO THIS TERM Is The Extra Virgin Olive Oil You Are Using In Your Hair Authentic Or … 4 Super Cheap Grocery Store Oils That Work Great For Your Hair … Why Olive Oil Is Perfect For Hair Growth Related Posts:What Is EVCO?What Does DC Or DT Mean?What is Pre-Poo?What is the LOC or LCO method?What is A BKT?What is ACV?What is SLS?What Are Cones? TweetPinShare+10 Shares Black Hair Information > Glossary > What Is EVOO?