Melt and Pour Soap Recipe in Halloween Black
September 27, 2021
Handmade Halloween black cat soaps

Halloween Melt and Pour Soap Recipe in Spooky Black

A melt and pour soap recipe that's SUPER easy for Halloween! I love watching my kids wash their hands with black Halloween soap. They are mesmerized by the dark suds and wonder how they can get clean by getting dirty! Pretty much a dream come true for my boys.

Black cats and witches are perfect for Halloween and these little soaps make great party favors for a Black Cat Halloween party or simply add them to your list of DIY Halloween gift ideas for friends and family.

Black cat melt and pour soap recipe by Salt Lake Party Stylist
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13 Days of Halloween

It's Day 7 of our annual “13 Days of Halloween ideas” with Jordan at Jordan's Easy Entertaining. I’ll be posting new Halloween ideas Monday, Wednesday, and Fridays all month long. This year the theme is MAGICAL BOOKS and I'll share tips for a Room on the Broom Halloween party as well as Harry Potter inspired Halloween ideas.

Check back each week on the blog, Facebook, Instagram, and Pinterest. Or better yet, JOIN ME to receive a weekly summary straight to your inbox each weekend so you don't miss a single Halloween thing.

Black Cat Melt and Pour Soap Recipe

Simple melt and pour soap supplies

This recipe is super easy when starting with a melt and pour soap base. I chose a white goats milk soap base to start because I like the way milk soaps don't dry out the skin.

What is Black Soap Made Of?

Emptying charcoal capsules for soap making

The black stuff in your soap is activated charcoal powder, but it isn't your average charcoal briquet. Created by heating materials such as: bone char, coconut shells, peat, petroleum coke, coal, olive pits or sawdust at really high temperatures. The high temps actually change the internal structure of the materials creating a charcoal that is more porous. {HealthLine}

It sounds weird to have black soap, toothpaste, and face wash, but it's ALL OVER the place these days. And for good reason.

Activated charcoal, because of its porosity, is found to absorb toxins in the body, skin, and hair. Not to mention assisting the digestive tract.

The capsule version work well for melt and pour soap recipes to contain the mess. Only upcap what you need to use, leaving the bottle available to aid in treating heartburn or bloating later!

What is Melt and Pour Soap

Melt and pour soap recipes are popular because they are so easy to work with. Melt and pour soap bases are ready made where the oils and the lye have already been turned into soap for you. This process is called “saponification” and is the chemical reaction needed to create soap. It's also messy and lye can be dangerous for a beginner.

So the melt and pour soaps offer an easy option for beginners and advanced soap makers alike. You just cut the soap into chunks, add colorants, fragrances, and any additional herbs or visual mix-ins then pour into your mold and let it harden.

Super easy right?

Halloween Melt and Pour Soap

Adding glitter and charcoal to melt and pour soap recipe

Once your melt and pour soap base is cut up into chunks, add your colorant {activated charcoal in this case}, fragrance {essential oils of lavender and peppermint}, and additional items for visual appeal {ultra fine glitter}.

The glitter adds a little visual appeal to the soaps and won't harm your skin BUT please don't add glitter to soap meant for the face. We do not want glitter ending up in the eyes. This melt and pour soap recipe is perfect for a hand soap.

If you'd like to use it for the face, simply omit the glitter.

Add everything together in the bowl and melt. It is possible to add the colorant and fragrances after it's melted but the soap begins to harden immediately and I found it much easier to to start with all the ingredients together.

Melt and Pour Soaps in Microwave

Pouring melt and pour soap into cat mold

I used the microwave to melt my soap, and it works just fine. Simply heat it in 30-60 second bursts, stirring between until you have a nice pourable consistency.

If you are making a large batch, I recommend using a pot on the stove at low heat, or double broiler to keep the soap in a liquid form. The microwaved soap base melts quickly, then hardens just as quickly.

Halloween Soap Mold

Black cat melt and pour soap recipe

Now that your melted soup is ready to pour you'll need a good mold. I highly recommend using silicone molds as they are so much easier to remove, leaving perfect little soap kittens behind.

This cat mold is perfect for Halloween soap, but you can find candy and ice cube molds of all designs that will work great! Sadly my mold is no longer available but here are few others I considered:

Or something entirely different for your Halloween soap:

Finishing Spray

Spraying alcohol on soap mold


After you pour your melted soap base into the mold, make sure to spray it with 99% Isopropyl Rubbing Alcohol to take the bubbles out of the top and give you a smooth professional appearance. I keep a Small Spray bottle in my craft supplies for occasions such as this.

Finished Black Cat Melt and Pour Soap Recipe

Handmade Halloween black cat soaps

After you let the melt and pour soaps cool for at least 30 minutes you can pop them out of the mold and they are ready for gifting. Aren't they just purrrrr-fect for those little witches and wizards?

Kids love getting dirty to stay clean!

Halloween BOO Bag Gift Idea

Halloween soap gift bag to Say BOO to germs

Now that you've got something cute to share you can start the neighborhood BOO bag game this year! If you're not sure how it works take a look at this post. And use our free “You've been BOO'd” printable!

I also have the fun black cat “no germs” themed gift tags in the shop.

If you do try our melt and pour soap recipe, I'd love to see it. And if you share, I want to see it too! Please tag us @partieswithacause on Facebook, Instagram, and Pinterest. We love celebrating all your hard work!


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Charcoal Black Melt and Pour Soap

This black soap is perfect for Halloween gifting or just a great detoxifying cleanser
Prep Time10 minutes
Active Time15 minutes
Cooling time30 minutes
Total Time55 minutes
Course: DIY
Keyword: Black Cat, BOO to Germs, DIY Soap, Halloween Gift
Yield: 6 small soaps


  • Sharp knife
  • Cutting board
  • Microwave safe bowl
  • Small Spray Bottle


  • 1/2 lb Goat Milk Melt and Pour Base
  • 3-4 capsules Activated Charcoal Capsules
  • 4 drops each Essential oils for fragrance Lavender and Pappermint
  • 1 tsp Ultra fine glitter for handsoap White & Purple
  • 3 oz 99% Isopropyl Alcohol
  • 1 tray Silicone mold in desired shape


  • Slice 1 lb block of soap base in half and cut into 1" chunks for easier melting
  • Add to microwave safe bowl
  • Empty 3-4 charcoal capsules on top on the soap pieces
  • Sprinkle with glitter in one of both colors
  • *NOTE: If you plan to use these soaps for the face, please omit glitter
  • Add drops of essential oil in desired fragrances, around 8 drops total
  • Microwave for 30-60 seconds at a time, stirring between
  • Once smooth and mixed pour immediately into molds and spray with rubbing alcohol to remove bubbles
  • Let soaps cure in molds for at least 30 minutes before trying to remove them
  • Remove soaps and package for gifting. Now get dirty to stay clean!

13 Days of Halloween

Coming up next for Day 8….

Recipe for Hot Butterbeer from Harry Potter

From the Halloween Archives

Say BOO To Germs Neighborhood Gift – with free printable!

Witch and Wizard Gnomes – a Great Halloween Gift

Black Cat Halloween Party

black cat halloween party sign

Chia Pudding Halloween Treat

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Melt and pour soap recipe for Halloween by Salt Lake Party Stylist


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Gingerbread houses in a row as table runner centerpiece for a Christmas Cookie Exchange Party I’m Bri of Parties With A Cause. I’m a mother to three crazy awesome kids, interior designer, & party planning junky. I love reading, globe trotting, and frozen yogurt. And I’m elevating the party experience one cause at a time! Read More

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