S Obagi C20 Serum addresses multiple concerns, including pores*1, dullness*2, and fine lines caused by dryness*3 around the mouth, which become more noticeable with age. This serum moisturizes the skin, leading to clear*4, firm, and radiant skin. *1: Provides moisture for smoother skin with less visible pores. *2: Due to dryness. *3: Reduces the appearance of fine lines caused by dryness (efficacy tested). *4: Refers to skin that is moisturized and has a refined texture and glow, with less visible pores. Recommended Usage: 3-4 drops per use How to Use: In the morning and evening, after preparing your skin with toner, take an appropriate amount (3-4 drops) into your palm and gently apply it to your face. - Product Name: Obagi - Volume: 15ml - Purchase Date: September 2025 (online) Brand new, unused item. Please refrain from purchasing if you are sensitive to minor imperfections or seek a perfect product, as it has been stored at home. ■ Please be sure to read my profile. ■ Returns are generally not accepted. Please refrain from excessive price reductions. ■ Immediate purchase is OK. We will prioritize the person who presses the purchase button first, even during comment exchanges. ■ Items will be shipped in simple packaging. Depending on the item, it may be compacted for shipping. ■ Responses and shipping may be delayed depending on the day. ■ We are not responsible for any delivery issues (e.g., troubles) that may arise. ■ Please feel free to ask any questions you may have. Please understand that this is a personal sale. Thank you for your understanding and consideration before purchasing. Thank you for reading this long description.