research Degradation of Hair Surface: Importance of 18-MEA and Epicuticle 25 citations , May 2019 in “Cosmetics” 18-MEA and cationic surfactants can restore and maintain hair's hydrophobic nature, improving its beauty and feel.
research Deposition of 18-MEA onto Damaged Hair to Form a Persistent Hydrophobicity January 2011 in “Journal of Society of Cosmetic Chemists of Japan” 18-MEA and SPDA can restore damaged hair's smoothness and reduce frizz.