After using PEPTI-correct HP, will the client have sun sensitivities due to the loss of melanocyte? No, there are no sun sensitivities with the PEPTI-correct Hp. Last Update: October 20, 2018 October 20, 2018 1833FAQ’sRelated Knowledge Base Posts -By what percentage do the active ingredients in Rejuvenator increase from Mild to Regular to Ultra?How is it that PEPTI-lift and PEPTI-tone have the same ingredients but different functions?I have heard that peptides cannot penetrate the cell without a carrier, is that true?