PRODUCT EXPIRY: 2021-12PRX Reverse Peel is a 3-phase anti-pigment treatment designed to treat hyperpigmentation and melasma. Product Composition- TCA (Trichloroacetic acid)- Hydrogen Peroxide- Kojic Acid- Lactic Acid- Phytic Acid- Glycolic Acid- Almond Acid- Salicylic Acid Pack contents: – 1 vial x 2ml phase 1- 1 vial x 1ml phase 2- 1 vial x 1ml phase 3.