Concept : In the Dissolve mode, Photoshop will randomly change the layer pixels to 0% opacity and other will remain to 100%. This effect can be checked when the layer is set to the opacity less than 100%.
1. Open an image. 2. Select lips using Polygon Lasso Tool. 3. Layer > New Adjustment Layer > Hue/Saturation 4. Click OK and you will get Hue/Saturation box. Check Colorize button ON. Move the sliders to get following values.