Sulwhasoo The Ultimate S Serum 30ml is a firming anti-aging serum enriched with ginseng berry actives, designed to improve skin elasticity and reduce advanced signs of aging. Its lightweight texture allows for quick absorption, leaving skin soft and hydrated. The bottle is inspired by the traditional Korean "Moon Jar" design, reflecting Sulwhasoo's cultural heritage.

Key ingredients include water, butylene glycol, glycerin, dimethicone, and denatured alcohol. The serum also contains ginseng berry extract, known for its anti-aging and revitalizing properties. For optimal effectiveness, it is recommended to apply the serum morning and evening after cleansing, spreading it gently from the center of the face outward.

Clinical studies have shown that after 4 weeks of use, there is a 6.7% improvement in expression lines when looking upward, a 9.6% improvement in frown lines, a 9.2% improvement in laugh lines, and a 13.7% improvement in wrinkles when smiling broadly. After 8 weeks, 100% of participants saw an overall improvement in fine lines, wrinkles, and skin texture.