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 2731FAQ’sRelated Knowledge Base Posts -Will the PEPTI-nano mask work with LED because of the reflection and can LED penetrate through the mask?By what percentage do the active ingredients in Rejuvenator increase from Mild to Regular to Ultra?How should you handle itchiness, erythema, and edema if experienced with PEPTI-a.c.n.e.?