For Radial Shockwave Therapy
COURTESY BTL: https://www.shockwavetherapy.eu/studies
COURTESY ACOUSTEK LLC: https://www.softwavetherapy.com/science.html
COURTESY SHOCKWAVE CANADA: http://dev.shockwavecanada.com/scientific-evidence/
For the STIMPOD NMS460
COURTESY XAVANT TECHNOLOGY: https://www.stimpodnms460.com/downloads/
For the AvazziaLife Evolution MICROCURRENT
COURTESY AVAZZIA: https://www.avazzia.com/about/microcurrent-research/
COURTESY RESEARCHGATE: https://www.researchgate.net/publication/323852520_The_effect_of_microcurrents_on_facial_wrinkles
Testimonials on next sub-header page.