Supplies
- Knox brand gelatin (available at your grocery store!)

OR:

Ready-made Gelatin
- Hot water

- Mixing cup

- Popsicle stick to mix and apply gelatin
- Foundation/Concealer, creme makeup, aquacolor, etc (personal preference)

Optional Supplies

- Eye liner/shadow for color highlights/lowlights if desired
- Lipstick/color if desired
- Setting powder or spray
- Spirit Gum
- Spirit Gum Remover

- Liquid Latex  (used as a final layer to seal the set gelatin)

- Stage blood, blood gel, or homemade "blood" (if you like gore!)

Pros of Gelatin Makeup:
- Easy to use
- Easy to remove
- Fewer steps involved
- Can be applied over/in hair (comes right out)
- Generally cheaper than latex!

Mixing and Applying Knox Gelatin

1. Clean face
2.  Mix one teaspoon of Knox gelatin to one teaspoon of hot water, stirring thoroughly to avoid bubbles
3.  Apply mixed gelatin to face
4.  Use the popsicle stick to move the gelatin around, creating bumps and shapes as you go (WORK QUICKLY!  Gelatin sets rapidly, so if you're doing a large area of the face, make small batches of gelatin and apply them one at a time until the area is completely covered).  Tap the setting gelatin to create a "pulled apart" effect if desired, and be careful to blend the edges of the scar into the skin
5.  Allow to set
6.  Apply foundation or other makeup delicately to face
7.  Use eye liner pencil or like utensils to create color and lowlights on the disfigurement if desired
8.  Apply lip color as desired
9. Once finished, spray setting spray on face to set the colors and prevent them from rubbing off.

Applying Ready-Made Gelatin

1. Clean face
2.  Heat up a cup of water on stove or microwave
3.  Submerge bottle of gelatin in hot water and allow to liquefy
4.  Carefully apply to face, making sure the gelatin is not too hot
5.  Create desired dimensions by moving gelatin on face
6.  Allow to set
7.  Apply foundation or other makeup delicately to face
8.  Use eye liner pencil or like utencils to create color and lowlights on the disfigurement if desired
9.  Apply lip color as desired
10. Once finished, spray setting spray on face to set the colors and prevent them from rubbing off.

Removal

To remove, simply peel off.  Remove any lingering gelatin with warm water.

Another method is to apply the color directly to the skin and apply the gelatin on top, and finally apply some translucent powder over top the gelatin.  This will depend on the look you're trying to achieve, so take the time and play around with it to see what method works best for you.

Makeup artist Kate Daley demonstrating what effects can be achieved with gelatin materials. 
Photo copyright 2007 Kate Daley.  Used with permission.
Check out more of her work on her website, Kate-Ations FX!