TIRTIR Pure Vitamin C24 Serum is a powerful brightening and anti-aging serum packed with 24% pure Vitamin C to visibly improve skin tone, fade dark spots, and boost radiance. Enriched with triple collagen and a soothing CICA-7 Complex, it firms, hydrates, and calms sensitive skin. This non-irritating, antioxidant-rich formula helps smooth fine lines, enhance elasticity, and protect against environmental damage-leaving your skin revitalized, glowing, and youthful.