If you want to take your look a little further this Halloween and add some crazy looking scars, a good product to use is lash glue. In particular the DUO surgical adhesive is by far the best lash glue I’ve come across. Here’s how to do it:
Apply a thin bead of Duo on skin in the shape of the scar you wish to create
Allow glue to air dry until it starts to look yellowish (approx 1-2 mins)
Add another layer on top
Keep repeating this process until you achieve the desired thickness you want
Once you have built your scar to what you want it to look like and it is dry, press an eyeshadow onto the glue to tint it to the color of scar you want. The glue will absorb the shadow color.
The result is a nice, natural looking scar on the skin. I’ve used this trick in a film when I was recreating slashed wrists. I used an eyeshadow one shade darker than the actor’s skin and the look was remarkably natural. Give it a try and let me know how it goes!