: Apply a solution of Potassium Thiocyanate to the skin (it will look clear). Trigger : Coat a blunt prop knife in Iron (III) Chloride .
: Add Red Food Dye gradually. Use a tiny drop of Blue or Green Dye to deepen the red into a more realistic, darker venous color. BloodHD
: Mix in Cocoa Powder or Chocolate Syrup . This adds "body" and prevents the blood from looking like transparent red syrup. : Apply a solution of Potassium Thiocyanate to
Use this if you are applying blood to fabrics and want to minimize permanent staining. BloodHD
: Add a small amount of Cornstarch to make the liquid less translucent. 2. Washable Costume Blood