Fillerina Densifying Filler Grade 4 Wrinkle filling skin care 2x30 mlA solution for youthful looking skin is within reach. Fillerina 12HA (grade 4) skin care contains 12 types of hyaluronic acids, 3 collagen molecules and 2 elastin molecules. These have different molecular weights to facilitate deep absorption. Hyaluronic acid helps fill in wrinkles and adds volume to cheekbones and lips, while collagen and elastin help firm facial contours. Thanks to their different molecular sizes, the active ingredients penetrate