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A knife shaped bath bomb with a hand-painted silver blade , and black handle with silver rivet. Splattered red like blood! Rusted Acre Soap Co,

Knife Bath Bomb

$9.50

Self-care just got stabby. Our handmade Knife Bath Bomb is all drama, no danger—crafted for those who like their bath time with a dark side. Splattered in faux blood and shaped like a classic horror prop, it fizzes to life in the water with bold surprise colors that swirl and slash through your tub.

Whether you’re horror-obsessed, goth-at-heart, or just into a good soak that breaks the mold, this one delivers. Handmade with premium, cruelty-free, and vegan ingredients, it softens skin while giving your bath a scene-stealing edge. It’s the perfect blend of creepy cool and comfort—no actual screams required.

Size: 5 oz

Makes Scents With:

Knife Bath Bomb Details

What Makes It Good
  • Baking Soda: Provides a fizzy, bubbling effect adding a point of fun to your soak.
  • Shea Butter Extract: Deeply nourishes—leaving your skin feeling spook-tacularly soft and smooth.
  • Sodium Lauryl Sulfoacetate (SLSa): Creates rich, foamy bubbles—making bath time a killer experience without drying your skin.
  • Organic Arrow Root Powder: Soothes and softens—leaving your skin deadly smooth.
Ingredients
  • Baking Soda
  • Citric Acid
  • Organic Arrow Root Powder
  • Organic Cream of Tartar
  • Kaolin Clay
  • Sodium Lauryl Sulfoacetate (SLSa)
  • Organic Safflower Oil
  • Shea Butter Extract
  • Natural Origin Fragrance Oil
  • FD&C Batch Certified Colorant
Why You'll Love It
  • Spooky knife shape adds a thrilling twist to bath time, perfect for those who love a little Halloween edge.
  • Fruity cherry scent fills the air, turning your bath into a killer scented escape.
  • Hidden colors create a vibrant, spooky display, making bath time a cut above the rest.
Detailed Scent Notes
  • Top Notes: Bright Citrus
  • Middle Notes: Cherry, Berry
  • Bottom Notes: Sweet Vanilla
TLC

Keep your knife somewhere cool and dry to protect those hand-painted details. Want to show it off before bath time? Display it proudly—just don’t let moisture sneak up on it. You want the scream-worthy fizz, not a soggy sneak attack.

Free Shipping on orders over $50

$7 Flat rate shipping on orders under $50

Customer Reviews

Based on 30 reviews
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L
Lempi M.

This smells really good and its actually bigger than I anticipated, Im sure the reciever will like it! :)

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Krystal C.

Received my order fast no issues love the smells.

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Stephania D.
My horror loving friend is going love this...

My horror loving friend is going love this! Safe packaging so there was no breakage and looks just as described.

F
Fidel J.
my bath bomb arrived really fast and it wa...

my bath bomb arrived really fast and it was packaged veryyy well. it smells really good too my gf is gonna love it:)

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Karianne C.
took a while to ship but came out looking...

took a while to ship but came out looking cute

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The Best Smelling Decision You've Ever Made

Shipping

Orders ship via USPS Ground with Priority upgrade available at checkout. Orders are processed within 3–4 business days, except during busy seasons (hello, holidays!), it may take a bit longer. We promise it’s worth the wait!

Packaging

We use biodegradable wraps, reusable jars, and sticker labels to reduce waste and protect the planet. Every order is packed with care to reflect our commitment to sustainability.

Sustainably Sourced

We bring you the good stuff, sourced straight from Mother Earth herself! Each bar, bath bomb, and scoop is crafted with ingredients grown without pesticides or harsh chemicals. Ethical, clean, and totally planet-friendly!
© 2025 Rusted Acre Soap Co. Powered by Plants. Powered by Shopify
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