How to Put Fake Blood on Clothes (Washable or Permanent)

Title card for how to put fake blood on clothes for a costume

The best fake blood for clothes depends on whether you want it to wash out. For a stain that should come out afterwards, use washable children's paint mixed red with a touch of brown, or a syrup-based fake blood on an old layer you don't mind staining. For a costume you will keep, thin red acrylic or fabric paint with water and dab, drip or flick it on with the garment lying flat over cardboard, then let it dry completely.

Food-coloring blood that looks great on skin is the least predictable choice on fabric, because it stays sticky and can leave a pink mark that never fully washes out. Below you'll find a quick comparison, the mixes, five ways to apply the blood so it looks believable, and how to dry and wash each type. If you want blood for skin and wounds, start with our main fake blood recipe instead.

Washable or Permanent: Which Fake Blood Should You Use on Clothes?

Use washable paint when the clothes need to go back to normal, and fabric or acrylic paint when the garment is going to stay a costume. Syrup blood sits between the two: it looks the wettest, but it is sticky and can stain.

OptionWashes out?LookDryingBest for
Washable kids' paint (tempera or poster paint labeled washable)Usually, especially from cotton; test firstMatte, slightly chalkyDries in a few hoursClothes you want to wear again, school costumes
Corn syrup fake bloodPartly; food coloring may leave pinkWet, glossy, freshStays tackyA few fresh drips on an old layer, photos
Thinned acrylic paintNo, permanent once dryFlat, dark, dried-onUsually an hour or twoZombie shirts, thrift-store jackets
Fabric paintNo, designed to stayFlat, stays flexibleFollow the label; some need heat settingCostumes you will wash and reuse

What You Need

  • The garment: thrift-store or old clothes for permanent blood, a test scrap of the same fabric for washable blood
  • Red paint (washable kids' paint, acrylic or fabric paint) or a jar of homemade fake blood
  • A little brown or black paint, or cocoa powder for syrup blood, to darken the red
  • Water and a small cup for thinning
  • Large pieces of cardboard or a plastic bag to slide inside the garment
  • An old toothbrush, a sponge, a spoon and a cheap paintbrush
  • Rubber gloves and a drop cloth or old sheet for the floor

Step 1: Prepare the Clothes and Your Work Area

Work outdoors or on a covered floor, and slide cardboard inside the garment so the blood can't soak through to the back.

  1. Wash new clothes once without fabric softener so the paint can grip the fibers, then let them dry.
  2. Lay the garment flat on the drop cloth and slide cardboard into the body and sleeves.
  3. If you plan to rip or scuff the clothes for a zombie look, do that first, so the blood sits in the tears the way it would on a real costume.
  4. Test your mix on an inside seam or a scrap of the same fabric and let it dry, to check the color and, for washable paint, whether it really washes out.

Step 2: Mix a Believable Blood Color

Straight red paint looks like ketchup, so darken it with a small amount of brown and thin it until it flows.

  1. Pour a few spoonfuls of red paint into a cup.
  2. Add brown, or the tiniest dot of black, a little at a time until it looks like dark cherry juice. Fresh blood is a bright, slightly orange red; old dried blood is close to brown.
  3. Stir in water until the mix runs off the spoon like single cream. Thicker paint makes raised blobs that look like paint; thinner paint soaks into the weave like a real stain.
  4. For syrup blood, darken it with cocoa powder instead, and add a few drops of dish soap to help it wash out later.

Step 3: Choose an Application Technique

Real blood stains have a mix of soaked areas, drips and small spots, so combine two or three of these techniques rather than using one everywhere.

  • Soaked stain: brush or sponge a patch of thinned paint around a rip, wetter in the center and fading out at the edges. Dab the edge with a damp sponge so there's no hard outline.
  • Drips: hold the garment up (or prop the cardboard upright) and let a spoonful run downward from a collar or a tear. Gravity makes the drips look natural.
  • Spatter: dip an old toothbrush, point it at the fabric and run your thumb across the bristles. Practice on cardboard first; less is more.
  • Handprint or smear: wearing a glove, press a lightly painted palm onto the fabric and drag it slightly, which reads as a dramatic grab mark.
  • Aged blood: once the first layer dries, dab a darker brown mix over the edges, or brush on cold strong coffee or tea to dull everything down.

Tip: step back and look at the garment from across the room before adding more. Blood that looks subtle up close usually reads well at party distance, and it's easy to add more but impossible to take paint away.

Step 4: Dry the Blood Properly

Leave paint-stained clothes lying flat with the cardboard still inside until they are completely dry, usually an hour or two for thinned acrylic and longer for thick patches.

  • Don't hang wet garments, or the drips will keep running and the paint will mark the back.
  • Fabric paint may need heat setting with an iron; follow the instructions on the bottle and use a pressing cloth.
  • Syrup blood never fully dries and stays tacky, so add it last, just before wearing, and keep it away from upholstery.

How to Wash Fake Blood Out of Clothes

Washable paint and syrup blood come out best with cold water as soon as possible, before anything goes in the dryer.

  1. Scrape or blot off any thick blobs.
  2. Rinse the back of the stain under cold running water.
  3. Rub in liquid laundry detergent, leave it for 15–30 minutes, then wash on a cold cycle.
  4. Check before drying. Heat can set leftover red coloring, so repeat the soak if any pink remains.

Acrylic and fabric paint are permanent once dry. Wash those costumes inside out on a gentle cold cycle and the blood should stay put. Always check the garment's care label first.

Safety Notes

Paint is for fabric only: never put acrylic or fabric paint on skin, and keep children's hands gloved while they help. Spray paint is not needed for any of these looks, but if you use it, work outdoors with good ventilation. Let painted clothes dry fully before wearing so nothing transfers to skin, car seats or furniture, and avoid realistic blood on costumes for very young children who may be frightened by it.

What is the best fake blood for clothes?

For clothes you want to wear again, washable children's paint mixed red and brown is the safest choice, because it usually rinses out of cotton in a cold wash. For a costume you will keep, thinned acrylic or fabric paint looks more realistic and stays put. Syrup blood looks wet but is sticky and may stain.

Will fake blood wash out of clothes?

Washable paint usually does, and syrup blood mostly does, but red food coloring can leave a pink mark, especially on light fabric or after it dries. Rinse in cold water as soon as you can and avoid the dryer until the stain is gone. Acrylic and fabric paint are permanent once dry.

How do you make fake blood look old on a shirt?

Mix more brown into the red so it looks dark and rusty, let the first layer dry, then dab a darker mix around the edges. A wash of cold coffee or tea over the stain dulls the color further. Old blood is flat, so avoid glossy syrup for this look.

Can I use fake blood on clothes I'm wearing?

Add syrup blood or washable paint only to an outer layer, and keep it away from your skin and from furniture. It's much easier to paint the garment flat beforehand, let it dry fully, and then add just a few fresh syrup drips at the last minute.

A bloodstained shirt is the fastest way to turn old clothes into a costume. Pair it with gray face paint for one of our last-minute DIY Halloween costumes, use the fake blood recipe for drips on skin, or add a few spots to a sheet ghost costume for a haunted look. For a zombie party, serve zombie cookies alongside, and browse more ideas in our zombie crafts section.