APC Cysteamine 7% Cream Available at a lower price than Cyspera. For those who find APC 5% insufficient, for those troubled by spots, dullness, melasma, and lack of firmness. Purchased from a reliable buyer on BUYMA. Please check the image for the expiration date. This cream's main ingredient is "Cysteamine," an amino acid found in breast milk, known for its high antioxidant and whitening properties. It is a cosmetic product made with a naturally occurring and safe ingredient in the human body. Apply directly to the areas of concern on the face before cleansing. Leave it on for a few minutes, then wash it off with a cleanser. I have sensitive skin, but I was able to use it without any peeling. The product comes in a vacuum airless pump (plastic) to keep it fresh until the end.