How to Make Fake Blood Look Real

Written by calandra cooper
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How to Make Fake Blood Look Real
In order for fake blood to look real it has to have the same characteristics as human blood. (blood image by Nicemonkey from

There are a numerous online recipes for making fake blood, most fitting any budget, with ingredients readily available in your kitchen cupboard. You can make buckets of fake blood at home, be it for a Halloween contest, a shocking prank, or to aid in special effects for a movie or play. The real challenge in making the gooey, red substance is knowing what it takes to make fake blood realistic.

Skill level:

Things you need

  • Mixing bowl
  • 3/4 cup white corn syrup
  • Warm water
  • Red food colouring
  • Blue food colouring
  • Green food colouring
  • 1/4 to 2/4 cup cornstarch
  • Measuring cups/spoons
  • Small artist's paint brush
  • Newspaper

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  1. 1

    Lay newspaper onto your work surface to avoid staining your work surface.

    How to Make Fake Blood Look Real
    Utilising the proper materials is important in making realistic fake blood. (bottle image by dinostock from
  2. 2

    Add 1/4 cup water and 1/4 cup cornstarch to the corn syrup to a large bowl. Stir until well mixed. In order for fake blood to look real it shouldn't be too runny, too thick or too transparent. Dip the paint brush into the mixture and dab droplets onto the side of the bowl to test its consistency. Add cornstarch or water (1/4 teaspoon at a time) to the mixture until the desired consistency is reached.

    How to Make Fake Blood Look Real
    Add cornstarch to corn syrup to act as a thickening agent for fake blood. (cough syrup image by Cindy Haggerty from
  3. 3

    Add two teaspoons each of red and blue food colouring and one drop of green food colour to the corn syrup mixture. Stir until incorporated. Continue adding one drop of blue food colouring until the desired blood colour is achieved. The point is to the make fake blood the same colour as human blood, which is blue under microscope and fairly dark red to brown when exposed to oxygen.

    How to Make Fake Blood Look Real
    Add blue food colour to your fake blood mixture to give your fake blood and authentic colour. (blue image by ennavanduinen from
  4. 4

    Dip your paint brush into the fake blood and swiftly flick your wrist to make blood splatter patterns on your costume, wounds or in areas most likely to have blood. You can also dip your brush into the fake blood and paint directly onto a prosthetic latex wound. Don't saturate or over apply blood in a single area. It's just as important considering where and how to apply your fake blood as it is to making realistic fake blood.

Tips and warnings

  • This recipe is edible and safe to use in areas around the mouth.

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