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 2759FAQ’sRelated Knowledge Base Posts -Are your products tested on animals?How do you know your peptides are biologically active?Are there any intrinsic risks involved in using unknown synthesized peptides?