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.
research Human Hair and the Impact of Cosmetic Procedures: A Review on Cleansing and Shape-Modulating Cosmetics 53 citations, July 2016 in “Cosmetics” Future hair cosmetics will be safer and more effective.