Esthederm Cellular Concentrate Fundamental Serum is a serum adapted to the first signs of aging. Esthederm Cellular Concentrate Fundamental Serum  is a face, neck and décolleté serum. Esthederm Cellular Concentrate Fundamental Serum is a universal, reprogramming and rebalancing serum for perfect skin. Esthederm Cellular Concentrate Fundamental Serum preserves the youthfulness of the skin by correcting and rebalancing the vital functions of the cell, redefining the skin texture in a lasting way, resulting in a skin surface with a finer and more even grain. Esthederm Cellular Concentrate Fundamental Serum has a refreshing texture with mattifying effect, is ultra penetrating, has a velvety finishing touch and has fragrance.