Besides PEPTI-correct Hp, what do you suggest for lightening of scar tissue on fair skinned people? Mild or Medium Rejuvenator, PEPTI-repair, PEPTI–pro-col in that order of effectiveness. Last Update: October 20, 2018 October 20, 2018 2096FAQ’sRelated Knowledge Base Posts -How do you know your peptides are biologically active?Why does PEPTI-pro-col it state that it reduces the appearance of hyperpigmentation?I have heard that peptides cannot penetrate the cell without a carrier, is that true?