Does the PEPTI-correct HP contain Hydroquinone? No, it does not contain bleaching agents, peroxides, hypochlorites, or percarbonates. Last Update: October 20, 2018 October 20, 2018 1835FAQ’sRelated Knowledge Base Posts -How do you know your peptides are biologically active?Would our peptides interfere with chemotherapy in any way?Why does PEPTI-pro-col it state that it reduces the appearance of hyperpigmentation?