The Medicube Red Succinic Acid Serum is a 30 ml skincare formulation designed for problematic skin types. This serum utilizes succinic acid to effectively address skin issues while protecting the skin barrier. Its main function focuses on refining pores by reducing excess sebum and blackheads, resulting in a smoother skin texture. It combats existing blemishes and helps prevent future breakouts with its acne-reducing properties. The formulation provides a gentle exfoliating effect that supports skin brightening and evens out skin tone for a more radiant complexion. Despite its effectiveness on problematic skin, this serum maintains a mild character suitable for sensitive skin types, allowing for daily use without irritation. Its moisturizing properties help prevent skin dehydration while supporting the overall health of the skin barrier. The application involves cleansing the face and applying toner beforehand, then dispensing 1-2 pumps evenly across the face and massaging gently until absorbed. The serum can be used both morning and night, with daytime use requiring subsequent SPF application. The 30 ml container offers a convenient size for regular use. This unisex formulation addresses common skin concerns through a balanced approach that combines efficacy with skin compatibility.