Compare Phen375 Vs Chitosan

https://periodicos.ufpel.edu.br/ojs2/index.php/dissertatio/user/viewPublicProfile/153046

Exactly how does Phen375 compare with Chitosan? Is Phen375 better than Chitosan? Which one is much safer than the other one? What are users of both complaining about? Read this thorough product review comparison