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 2672FAQ’sRelated Knowledge Base Posts -If the Hayflick limit for human cells are 50-70 divisions and skin cells divide why don’t we eventually lose all skin cells?By what percentage do the active ingredients in Rejuvenator increase from Mild to Regular to Ultra?Are there any intrinsic risks involved in using unknown synthesized peptides?