The present invention is concerned with a
skin treatment device (1), comprising a shaver
handle housing (3), a detachable
brush head (2) pivotably supported by the shaver
handle housing (3) about at least one
brush head pivot axis (I) and a gearing mechanism (10, 12, 13, 14). The shaver
handle housing (3) comprises a drive unit for driving at least one drive pin (5) in a rotatory oscillating manner with a first amplitude about an oscillation axis (II) which is at least substantially perpendicular to the at least one
brush head pivot axis (I). The brush head (2) comprises a brush (9) rotatable about a brush axis (III) which is at least substantially perpendicular to the at least one brush head pivot axis (I). The brush (9) comprises at least one
driven element (24) coupled to the at least one drive pin (5) by means of the gearing mechanism (10, 12, 13, 14), wherein the gearing mechanism (10, 12, 13, 14) translates the rotatory oscillating movement of the drive pin (5) into a rotatory oscillating movement of the
driven element (24) with a second amplitude which is smaller than the first amplitude of the drive pin (5).