Castile Liquid Soap

Castile soap takes its name from the Castile region of Spain, where soap was traditionally made from vegetable oil instead of animal fat. The defining feature is that it is a genuine soap, made by saponifying plant oils, rather than a synthetic detergent. This base follows that tradition using organic sunflower and coconut oils, which give it a gentle, creamy lather and a short, clean ingredient list.

The glycerine in the formula is retained from the soap-making process and acts as a natural humectant, helping the soap feel less stripping on skin than detergent-based washes. Because it is concentrated, most uses call for diluting it with water, which makes a single bottle go a long way.

Castile Liquid Soap offers exceptional benefits for natural soap formulations:

🌻 Made with Organic Oils – Crafted from organic Sunflower and Coconut oils
🌿 Plant-Based & Natural – Entirely plant-derived, no animal ingredients
💚 Gentle on Skin – Surfactant-free formula is kind to all skin types
🌍 Environmentally Friendly – Biodegradable, eco-conscious choice
🚫 Free from Harsh Chemicals – No SLS, SLES, or Parabens
✨ Creamy Yellow Color – Natural color from organic oils
💧 Contains Glycerine – Organic origin glycerine for skin conditioning
🎨 Customizable Fragrance – Add essential oils of your choice
🧂 Easy to Thicken – Use salt (Sodium Chloride) to adjust consistency
♻️ Versatile Base – Perfect for multiple personal care applications

Personal Care Applications

• Hand wash: Use neat from a pump, or dilute about 1 part soap to 3 parts water in a foaming bottle.
• Body wash: Apply a small amount neat to a cloth or sponge.
• Facial cleanser: Use a small diluted amount. Patch test first if you have sensitive skin.

Household Applications

• Dishes: Add a squirt to a sink of warm water.
• Floors and surfaces: About a quarter cup per bucket of warm water.
• Spray cleaner: A couple of tablespoons per spray bottle of water.

DIY Formulations

• Use as a clean base for natural hand and body washes, adding your own essential oils and actives.
• Add a little vegetable glycerine for extra slip and skin feel.
• To thicken, dissolve a little salt in warm water and stir it in slowly until you reach the consistency you want.

Product Information

• Type: Surfactant-free liquid soap base
• Base oils: Organic sunflower oil, organic coconut oil
• Free from: SLS, SLES, parabens
• Suitability: Vegan approved, biodegradable

Physical Characteristics

• Appearance: Creamy yellow liquid
• Fragrance: Unscented
• Consistency: Smooth liquid, thickens with salt

⚠️ Safety & Precautions

• For external use. Patch test before first use on skin.
• Avoid contact with eyes. Rinse with water if contact occurs.
• When adding essential oils, follow safe usage rates.
• Store in a cool place away from direct sunlight.
• Classified as a dangerous good. Cannot be sent overseas or by express post within Australia. The 20L drum tap is sold separately.

Is this castile soap vegan?

Yes. It is vegan approved and made entirely from plant oils, with no animal-derived ingredients.

How is it different from regular liquid soap?

It is surfactant-free, which means it is a true soap made by saponifying vegetable oils rather than a blend of synthetic detergents like SLS or SLES. The ingredient list is short and the formula is biodegradable.

Can I add fragrance to it?

Yes. It is supplied unscented so you can customise it with your own essential oils. Add them gradually and stir well, and follow safe usage rates for the oils you choose.

How do I thicken castile liquid soap?

Dissolve a small amount of salt in warm water and stir it into the soap slowly. The soap thickens as you add the salt solution, so go gradually until it reaches the consistency you want.

What dilution should I use?

It depends on the job. As a rough guide, use about 1 part soap to 3 parts water for a foaming hand wash, a small amount neat for body washing, and a quarter cup per bucket of water for floors.