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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 $10.95
Regular price Sale price $10.95
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A gentle yet effective plant-based soap, perfect for various green cleaning applications. It cleans without leaving harmful residues, making it ideal for everything from hand soap to multi-purpose cleaners.

What is it?

Castile soap's story begins in the lush landscapes of Spain's Castile region. Crafted from a blend of olive oil and alkaline ash, this gentle soap was a local secret for centuries, prized for its mildness and effectiveness.

A true soap is a cleansing agent made through the saponification process. It's created by mixing fats or oils with an alkali, such as lye (sodium hydroxide or potassium hydroxide).

Its concentrated formula means you only need a small amount to achieve powerful results. Dilute it with water for various cleaning solutions, from all-purpose sprays to floor cleaners.

  • Ingredients: Filtered rainwater, Potassium soap made from oils of Coconut and Olive Oil. Retained glycerine.
  • pH: Approx. 7-8


NOTE:
Due to the large amount of olive oil used to make our Liquid Castile Soap, you may find that these it can go cloudy with a small amount of white sediment when the temperature falls below 15 degrees Celcius. The cloudiness and sediment will disappear as soon as the temperature rises back above 15 degrees.

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Key Benefits

A safe surfactant
At the heart of any effective cleaning agent lies its ability to break down grease and grime. Pure soap is a natural surfactant, which means it excels at this vital task. Its molecular structure acts like a bridge between water and oils, effortlessly lifting away dirt and leaving surfaces shining.

Soap vs. Detergent
While we often use "soap" and "detergent" interchangeably, they're not quite the same. Soap is crafted through a traditional process of mixing fats or oils with an alkali, while detergents involve synthetic compounds. Opting for pure soap
means choosing a gentler, more natural option that's free from synthetic additives found in detergents.

It's timeless
Pure soap has stood the test of time – a testament to its reliability and effectiveness. With a history stretching back through generations, it's a tried-and-true solution that's been trusted for its cleaning prowess.

It's versatile
Need a degreaser for your stovetop? Or perhaps a gentle cleaner for your little one's highchair? Look no further than pure soap. Its versatile nature makes it suitable for various surfaces, making cleaning a breeze.

Eco-Friendly by Nature
Choosing pure soap aligns with your commitment to eco-conscious living. Its production involves fewer chemicals and has a smaller environmental footprint compared to conventional cleaners. Plus, its biodegradable nature ensures it breaks down harmlessly, reducing its impact on our planet.

Even more reasons..
Beyond these top reasons, pure soap is a budget-friendly solution that leaves behind a fresh, clean scent – no overpowering artificial fragrances needed.

Usage Tips

Kitchen

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


Laundry

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


Bathroom

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


General

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


Check out our DIY Recipe Hub for natural cleaning products you can make at home

Packaging

Sturdy, solid, quality amber glass bottles that can be re-used, refilled or worst case recycled. You can see our Speciality Glassware range for closures that can you can add to empty bottles.

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Save Money 

DIY cleaners are much cheaper than store-bought options, saving you money in the long run while still providing effective cleaning power.

Healthier 

You control the ingredients, which means no harmful chemicals, synthetic fragrances, or plastic waste

Eco-friendly and ethical

Our ingredients are biodegradable, septic-safe, vegan-friendly, and ethically sourced, ensuring minimal impact on the planet and supporting ethical practices.

Fun & empowering

Making your own cleaners gives you a sense of control and accomplishment, knowing exactly what goes into your cleaning routine and taking a hands-on approach to maintaining a healthier home.

Support small ethical 

By choosing us, you're supporting a small family business right here in Melbourne. With the help of my husband, daughter, and our Cavoodle Maxi, we’re on a big mission to make cleaning simpler, greener, and kinder!

Customer Reviews

Based on 12 reviews
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(11)
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J
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!!

S
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.

A
Ange O.
Superior quality

Love the quality of this product!
Has a beautiful lush texture which increases its versatility. The large glass bottle looks amazing

K
Kim D.R. (Melton West, AU)
Castile Soap Laundry Liquid

The first time I have purchased this soap so don’t really have anything to compare it with. i made some foaming hand wash with it, and came out really well. Very nice and soft. I made some homemade laundry liquid with it this
morning. Very sudsy! Will cut down the amount of Castile soap if I make this again.

S
Sheryn P.
My way

I use this to make my own multi-purpose spray and dish liquid. I love how it cleans and being able to use different essential oils depending on where used or my mood.