- Type: Face Serum - - Format : 30 mL/60 mL Description Multi-Peptide + HA Serum (formerly known as “Buffet”) is a universal formula that combines a comprehensive array of technologies to improve skin smoothness and target multiple signs of aging at once. By utilizing four well-studied peptide technologies, skin-friendly amino acids, and multiple hyaluronic acid complexes, it helps significantly improve the appearance of crow's feet, as well as improving the feel of skin elasticity and firmness.