This serum is a highly sought-after beauty product known as Jun Ji-Hyun's serum, after the famous actress revealed it as her go-to skincare item. It has earned the nickname "damn serum" due to the tingling sensation it creates when applied to damaged, oxidized skin. The more damage, the greater the tingle. This sensation fades over time as the skin heals. This serum is packed with antioxidants and helps improve elasticity, prevent premature wrinkles, balance oil and moisture, and tone the skin. The formula features aloe vera instead of purified water and vegetable components in place of synthetic preservatives to help soothe and relax the skin. This serum is recommended for those with enlarged pores, fine wrinkles, multiple skin concerns, dry skin, and rough skin.

To use, shake the bottle before applying every morning and evening after cleansing and toning. Use the dropper to apply the serum onto the skin and spread and absorb it. Then apply a moisturizing cream to dry areas.