FIG. 1 is a perspective view of a first embodiment of a cosmetic skin care device showing my design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a right view thereof;
FIG. 5 is a left view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a perspective view of a second embodiment of a cosmetic skin care device;
FIG. 9 is a front view thereof;
FIG. 10 is a back view thereof;
FIG. 11 is a right view thereof;
FIG. 12 is a left view thereof;
FIG. 13 is a top view thereof;
FIG. 14 is a bottom view thereof;
FIG. 15 is a perspective view of a third embodiment of a cosmetic skin care device;
FIG. 16 is a front view thereof;
FIG. 17 is a back view thereof;
FIG. 18 is a right view thereof;
FIG. 19 is a left view thereof;
FIG. 20 is a top view thereof;
FIG. 21 is a bottom view thereof;
FIG. 22 is a perspective view of a fourth embodiment of a cosmetic skin care device;
FIG. 23 is a front view thereof;
FIG. 24 is a back view thereof;
FIG. 25 is a right view thereof;
FIG. 26 is a left view thereof;
FIG. 27 is a top view thereof;
FIG. 28 is a bottom view thereof;
FIG. 29 is a perspective view of a fifth embodiment of a cosmetic skin care device;
FIG. 30 is a front view thereof;
FIG. 31 is a back view thereof;
FIG. 32 is a right view thereof;
FIG. 33 is a left view thereof;
FIG. 34 is a top view thereof; and,
FIG. 35 is a bottom view thereof.
The broken lines in the drawings are for the purpose of illustrating portions of the cosmetic skin care device, which form no part of the claimed design.