Caffeine neutralises the negative effect of testosterone

Conducted at the Clinic and Polyclinic for Dermatology and Venerology of the University of Hamburg-Eppendorf

Efficacy of the caffeine complex in the treatment of androgenetic alopecia

Conducted at the Clinic of Dermatology and Dermatological Allergology of Friedrich Schiller University in Jena, Germany

Efficacy of a caffeine-containing liquid against premature hereditary hair loss in men

Conducted at the Center for Cosmetic Research of Catholic University of the Sacred Heart in Rome, Italy.