Yon-Ka Advanced Optimizer Serum Firming
Advanced Optimizer Serum is a redensifying serum that tightens skin and works together with the cream to increase its firming effect and boost its anti-ageing effects. Its fluid texture instantly penetrates. Enriched with hibiscus peptides to stimulate collagen production, this serum visibly tightens the skin on your face and neck. Your features will look redesigned and your skin will be smoother and more toned.