This product contains the highest available concentration of hyaluronic acid – 28 mg/ml. Like all Neauvia fillers, it is made from the purest source of hyaluronic acid (Bacillus subtilis) and it is cross-linked with PEG polymer to obtain a 3D hydrogel matrix. In addition to hyaluronic acid it contains amino acids – Glycine and L-Proline – that are main ingredients of collagen.