Go to Window > Actions. Click on the panel menu (top-right corner of the panel) then click Load Actions. Browse for the "Skin by SparkleStock.atn" file then click Load.
In your Actions panel (Window > Actions), click on the Skin by SparkleStock folder. Select any action then click on the play button on the bottom of your Actions panel.
After an action has been done playing, paint in the layer mask to reveal/hide the effect. Adjust the layer group opacity to increase/decrease the effect.
OR
Run the *.zxp file and follow the instructions.
Go to your Actions panel (Window > Actions), open the panel menu located on the top-right of your panel, then choose "Skin - 20 Retouching Actions".
After an action has been done playing, paint in the layer mask to reveal/hide the effect. Adjust the layer group opacity to increase/decrease the effect.