Effective ingredients missing or their concentration is too low.
Exfoliation
What does the product description say?
Compeed Purifying Anti-Blemish Patch 7 Patches is a triple-action purifying, absorbing and exfoliating patch for areas with widespread imperfections small pimples and blackheads.
Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin
