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Castile Soap

Castile Soap

“I've been using this for a year or so now, for hand and body wash and bench spray…”

Regular price $11.80
Regular price Sale price $11.80
Sale Sold out

Unlike detergents which are made from synthetic chemicals, a pure soap is made from oils. Our Castile Soap is made from only olive oil, coconut oil, water, and lye. Traditionally Castile Soap is only made from olive oil but in recent times the addition of coconut oil improves lather.

  • Pure liquid Soap: Can be mixed with other ingredients to make natural cleaning supplies that can replace many expensive store-bought cleaners and used anywhere from dishes to bums.
  • Time tested: Soap is a classic cleaning agent that has been used for centuries due to its effectiveness in removing dirt, grease and grime.
  • Science backed cleaning: When soap is added to water containing oils or grease, it surrounds the oily molecules, forming tiny structures calledmicelles. The soap molecules arrange themselves with their hydrophobic tails facing inward, trapping the oils in the centre. This creates an emulsion, dispersing the oils in the water and allowing them to be rinsed away.


Your Packaging Options

Your liquid products such as Castile Soap and Vegetable Glycerine will come packaged in a sturdy and sexy amber glass bottle that you can refill, reuse, and repurpose!

It has at 28/400 neck size suitable for our accessories such as trigger sprays and soap pumps found in our Glass Storage Collection.

Or worst case if you really can't find a need for the bottle, it can be recycled.

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Every ingredient has more than one purpose. No one single use.

Visit our blogs, full of tips and resources to empower you.

Usage Tips


• Use as dish liquid
• Add water and essential oils for an awesome multipurpose spray


• Use as wool and delicates wash
• Dab on clothing to remove oil stains


• Create your own hand wash
• Create beauty products like body wash and shampoo
• Create your own hand wash
• Create beauty products like body wash and shampoo

General Household

• Dilute and use it anywhere there is a need to clean

  • Cost effective

    Replace expensive, single use products with multi-purpose solutions.

  • Sustainable

    Biodegradable, eco-friendly, and plastic-free reflects in every product we offer.

  • Convenient

    Simple solutions and a one stop shop for all natural cleaning supplies.

Customer Reviews

Based on 22 reviews
Rachel O.
Great quality and price

I've been using this for a year or so now, for hand and body wash and bench spray. Love the quality and knowing if my kids ate it they wouldn't get sick!

Jill G.
I really enjoy making my

I really enjoy making my own household cleaning products - all the ingredients from Under Your Sink are top notch!!

Susanne W.
Great product

I like to buy aussie made, made my first batch of dishwashing liquid and had soap from the website. Couldn’t be happier. The service Analise provides is outstanding.

Sally T.
Fantastic Service and Products

Fantastic Service and Products

Michelle B.
Arrived in perfect condition and just made my first soap!

These were exactly what I’d hoped for - excellent quality, everything feels really well made. And thank you for the extra little gift. So generous and kind!! xoxo