By what percentage do the active ingredients in Rejuvenator increase from Mild to Regular to Ultra? It doesn’t work that way. It’s not a percentage difference. However you could say if ultra is the max, medium is about half and mild is about a third of medium. Last Update: October 20, 2018 October 20, 2018 1923 FAQ’sRelated Knowledge Base Posts -Can you use Viktoria DeAnn peptides with derma (micro) pens or microneedling?Are your products tested on animals?If PEPTI-tone can be used in place of Botox, why should I apply it all over my full face?