Source : vrt news " NAQI from Halen has developed a "Speed Gel". Apply this to your body to reduce the aerodynamic resistance so you cycle faster. A triathlete from the team of Luc Van Lierde has tested the gel in the Flanders Bike Valley wind tunnel." More information https://www.vrt.be/vrtnws/nl/2018/05/08/sneller_fietsen_dankzijgel/