Slytherin Bath Bombs for Harry Potter Fans

There’s no doubt that this Slytherin bath bomb recipe is as clever as it is crafty. And it makes the perfect Harry Potter gift idea for any Harry Potter fan!

snape and slytherin harry potter bath bomb idea on a black background

Slytherin Bath Bombs

Here at Ruffles and Rain Boots, we clearly have Harry Potter on the brain. We are definitely planning a little Harry Potter party soon (just don’t tell the kiddo–it’s a surprise) and we’re coming up with a ton of great Harry Potter gift ideas. The top of our list? This awesome Slytherin bath bomb recipe.

It’s no wonder that we’d bring together our love of Harry Potter with our no-fail bath bomb ideas! It’s just a wonder why it’s taken us this long to do it! Let’s get started.

No Time to Make This Now? Pin it for Later

You’re busy, I get it. Pin this to your favorite Harry Potter DIY ideas board on Pinterest and it’ll be here for when you’re ready.

harry potter slytherin bath bombs on a black background

Houses in the Harry Potter Bath Bombs Series

You guessed it! We have all of the houses represented here on Ruffles and Rain Boots. They are:

  • Slytherin Bath Bombs – That’s this one. Aren’t they sssssssmart? I couldn’t help myself.
  • Gryffindor Bath Bombs – Courageous? Yes. Easy? You bet. Fun? Oh goodness, yes!
  • Hufflepuff Bath Bombs – Just like their house magicians, these bath bombs work hard for you.
  • Ravenclaw Bath Bombs – It sure is smart to keep one of these housemates (and this bath bomb) on hand.

Tips to Make this Harry Potter Gift Idea

  • After you’re done making your Slytherin bath bombs, allow them to dry a minimum of 24 hours. If your climate is wet or cold, allow an additional 24 hours, because they’ll be so much more fun when they’re dry.
  • My general bath bomb rule of thumb is that when your Slytherin bath bombs are hard to the touch, they are ready for the tub!
  • Store in an airtight container until you are ready for the bath–you don’t want your Slytherin bath bombs to get fizzy before you’re ready.

gift idea for potterheads slytherin shower fizzy

How Do I Make Slytherin Bath Bombs?

I’m so glad you asked. Below is our written tutorial. If you’re making a Harry Potter gift idea playlist on YouTube, here is our Slytherin bath bombs video tutorial.

Yield: 5-8 bath bombs

Slytherin Bath Bombs

gift idea for potterheads slytherin shower fizzy

Harry Potter fans are going to be SO excited to make or get these Slytherin bath bombs.

Prep Time 10 minutes
Active Time 15 minutes
Total Time 25 minutes
Difficulty Easy
Estimated Cost $3


  • 2 cups baking soda
  • 1 cup citric acid
  • 1/4 cup cornstarch
  • 1/4 cup goats milk powder
  • 1/3 cup coconut oil
  • 1 tablespoon polysorbate 80
  • 10-20 drops chamomile essential oils
  • 10-20 drops fennel essential oil
  • Dark Green mica powder
  • Silver mica powder
  • Dark green cosmetic glitter
  • Silver cosmetic glitter


  • Stainless steel bath bomb molds
  • Spray bottle filled with rubbing alcohol
  • 1 large mixing bowl
  • 2 small bowls


  1. In a large mixing bowl, add the baking soda, citric acid, goats milk and cornstarch. Whisk dry ingredients together.
  2. Add the coconut oil. This binds all the ingredients together, so you bath bombs don’t crumble when you touch them!
  3. Add the polysorbate 80. This helps the coconut oil disperse more evenly in your bath water, makes the bath bombs bubbly and prevents the mica from sticking to the side of the tub.
  4. Mix the ingredients together. I use my hands to break down any lumps and make sure everything is really mixed in there. The mixture is perfect when it holds together when you press it into your hands and feels like wet sand. Separate mixture into five bowls.
  5. Add 1 tablespoon of the dark green mica and dark green cosmetic glitter into one of the small bowls and the silver mica and silver cosmetic glitter into the other small bowl. 
  6. Add essential oils. photo tutorial of how to make shower bombs slytherin
  7. Mix colors into mixture thoroughly. Add a bit more color if the mixture is too light. Continue to add a bit and mix until you get the color you want. 
  8. Add about 1 tablespoon of your first color into a cavity of one side of the mold. Do the same with the other color and continue until the mold is full.  
  9. Press both sides of the mold together firmly, grinding together to get rid of the excess mixture.  
  10. Tap both sides of the mold and gently release the bomb. Allow to dry a minimum of 24 hours. photo tutorial of how to make harry potter slytherin bath bombs


For more fun Harry Potter gift ideas, visit

Did you make this?

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More Bath Bombs You Might Like

  • No-Fail Bath Bomb Recipes – If you’re thinking of making any bath bombs for gifts, party favors, or just for fun-times for yourself, these no-fail bath bombs are absolutely the place to start!
  • DIY Sorting Hat Bookmarks – Because the sorting hat says so, you have to make a few of these bookmarks for gifts–they’re too cute not to!
  • Hufflepuff Bath Bombs – Stalwart companions to the Slytherins, if you’re making Slytherin bath bombs, you need to make Hufflepuff bath bombs to go with them–every time.
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