This is a cosmetic eye contour cream, not a medical treatment, so it does not change the structure of the skin or remove dark circles, puffiness, or deep wrinkles. Its purpose is to improve how the eye area looks and feels by adding and holding moisture.
Snail mucin in this product contains moisture-binding compounds, including naturally occurring hyaluronic acid, plus allantoin and peptides. These ingredients contribute to a hydration effect: water is drawn into the upper layers of skin, which can make the surface feel smoother and look softer and more even. Fine lines caused by dehydration often become less noticeable when the skin is well hydrated.
When you might notice a difference depends on your skin condition, the climate you live in, how much water your skin loses overnight, your age, and the rest of your routine. Some people see a temporary smoother feel immediately after application because the cream adds moisture to the surface. More lasting changes in how comfortable and flexible the area feels usually come with regular use, morning and evening, over several weeks.
To judge results fairly, take a photo in the same lighting and angle before you start and after 2–4 weeks. The product will not work faster or better if you apply a thicker layer; the recommended small amount is enough. If you stop using it, the hydration effect gradually fades as the product is washed off and the skin returns to its baseline level of moisture.