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 2411FAQ’sRelated Knowledge Base Posts -How do you know your peptides are biologically active?Are your products tested on animals?Do you make a peptide specifically to address whiteheads?