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 2667FAQ’sRelated Knowledge Base Posts -How should you handle itchiness, erythema, and edema if experienced with PEPTI-a.c.n.e.?If the Hayflick limit for human cells are 50-70 divisions and skin cells divide why don’t we eventually lose all skin cells?Are your products tested on animals?