The ornamental design for a protective skinshield, as shown and described.
FIG. 1 is a perspective view of the protective skin shield according to the present invention;
FIG. 2. Is a perspective view of the protective skin shield according to the present invention shown in a state of use;
FIG. 3 is a front elevation view of the protective skin shield according to the present invention;
FIG. 4 is a back elevation view of the protective skin shield according to the present invention;
FIG. 5 is a right side elevation view of the protective skin shield according to the present invention;
FIG. 6 is a left side elevation view of the protective skin shield according to the present invention;
FIG. 7 is a top elevation view of the protective skin shield according to the present invention space; and,
FIG. 8 is a bottom elevation view of the protective skin shield according to the present invention.
The broken lines depicting the a human head shown in FIG. 2 is included for the purpose of illustrating environmental subject matter and forms no part of the claimed.