Plasma treatment device for plasma treatment of a skin surface

A plasma treatment device for treating a skin surface containing living cells with a dielectric barrier plasma, comprising:

• a housing with a grip;
• a treatment head arranged on the housing;
• an electrode arrangement provided on the treatment head, wherein the electrode arrangement comprises at least one electrode and a dielectric that completely covers the at least one electrode with respect to the skin surface to be treated, wherein the dielectric has having a treatment surface on a surface section, wherein the plasma treatment device is configured such that the surface section comprising the treatment surface projects out of the treatment head towards the skin surface to be treated;
• and
• a high-voltage stage arranged in the housing for generating high-voltage signals required for generating the plasma, wherein said high-voltage stage is or can be brought into electrical contact with the at least one electrode of the electrode arrangement by a connection arrangement comprising at least one high-voltage supply line,
• wherein the dielectric of the electrode arrangement is formed at least partially from a polyurethane gel which is not a hydrogel.