Anua Heartleaf Pore Control Cleansing Oil is a deep cleansing mild prescription product that can be used safely even on acne-prone skin. In the satisfaction survey, 90% showed satisfaction in product, 90% wanted to recommend and repurchase the product, 90% of emulsification process proceeded quickly, 95% showed satisfaction with cleansing, 90% thought it was helpful in improving blackheads and sebum when used persistently, 95% thought it wasn’t irritating to the skin, 90% showed high satisfaction from the mild appliance and a fresh finish without any residue, and 95% felt the skin turned moist and smooth. Oil-based makeup dissolve impurities and sebum well, so oil cleansing is necessary, and as a result of the sunscreen residual test after cleansing for each cleansing product, the residual amount of sunscreen after using an oil-based cleanser (oil) is significantly lower than after using a water-based cleanser (water), hence proved the necessity of oil cleansing.