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A 5 litre plastic jerrycan filled with olive soap base liquid, featuring a white handle, white cap, and a white label that reads 'Liquid Castile Olive Soap Base' with the Soapmaid brand logo.

Liquid Castile Soap Base

$90.00
Tax included.

Formulate your own liquid hand soaps, body washes and shampoos with our Liquid Castile Soap Base — a traditional Olive Oil Castile Soap made the old-fashioned way, from just purified water and saponified olive oil (INCI: Potassium Olivate).

Made in Australia, this base arrives as a rich, semi-opaque gel in a yellow-to-amber colour, with a naturally characteristic soap odour. With only two ingredients on the label, it's a clean, minimal-ingredient starting point for formulators who want to avoid synthetic detergents and sulfates — simply dilute with water to your preferred concentration and customise with your own fragrance, colour, thickener and actives.

Please note: this is a concentrated soap base for formulators, not a ready-to-use finished product. As supplied it is alkaline (pH approx. 10.2–10.5)

Product Info

Specs
  • Product type: Liquid castile soap base/concentrate for DIY soap, shampoo and body wash formulation
  • INCI: Potassium Olivate
  • Full ingredient list: Purified Aqua (Water), Potassium Olivate
  • Appearance: Semi-opaque gel, yellow to amber in colour
  • Odour: Characteristic (mild, natural soap scent)
  • pH: 10.2–10.5 (batch-tested at 10.45)
  • Viscosity at 25°C: approx. 7,500 mPa·s (product specification range 4,000–20,000 mPa·s)
  • Solubility: Soluble in water
  • Origin: Made in Australia
  • Shelf life: Best-before date confirmed on each batch's Certificate of Analysis (typically around 3 years from manufacture)

Benefits
  • Traditional two-ingredient castile soap base — just water and saponified olive oil, with no synthetic detergents or sulfates
  • Versatile starting point for liquid hand soap, body wash, shampoo and other wash-off formulations
  • Made in Australia with quality-controlled, batch-tested production
  • Every batch is supplied with a Certificate of Analysis covering appearance, viscosity, pH and stability
  • Naturally derived and biodegradable, suited to clean, minimal-ingredient formulating
  • Water-soluble and easy to dilute, so you can control final concentration and cost per litre
  • Consistent gel texture and colour batch to batch

Product Safety

Classified as hazardous under the GHS: corrosive to skin (Category 1A) and causes serious eye damage (Category 1); may be fatal if swallowed or if it enters the airways, and is harmful if swallowed

Supplied as a concentrate — always dilute with water before the finished product touches skin; never apply the undiluted base directly to skin or eyes

Wear protective gloves, eye/face protection and suitable clothing when handling the concentrate; avoid breathing mist or vapour and do not eat, drink or smoke while handling

Skin contact: wash off immediately with plenty of water. Eye contact: rinse thoroughly with water for at least 15 minutes and seek medical attention

If swallowed: rinse mouth, do NOT induce vomiting, and contact the Poisons Information Centre (13 11 26) or seek medical attention immediately

Keep out of reach of children and store locked up, in the original, tightly closed container, away from incompatible materials

Not classified as Dangerous Goods for transport (DOT, IMDG, IATA)

Intended for use by soap and cosmetic formulators experienced with alkaline ingredients — always patch-test the finished, diluted formulation before wider use

Full Safety Data Sheet (SDS) and Certificate of Analysis available on request — please read the SDS before handling, diluting or repackaging this product

Shipping

Collections from Springvale: Please allow 24 hours for all collection in store. If same day pickup is required, please contact us to discuss.

Shipping: We ship Australia Wide

FAQs

Questions

What is Liquid Castile Soap Base made from?

Just two ingredients: purified water and saponified olive oil (INCI: Potassium Olivate).

Is this soap ready to use straight from the bottle?

No. It's a concentrated base for soap and cosmetic formulators. Dilute it with water and add your own fragrance, colour and thickeners before it's used as a finished wash-off product.

Is it safe to handle?

As supplied, it's alkaline and classified as corrosive to skin and eyes, so gloves and eye protection are recommended when handling the concentrate. Always dilute before use on skin, and read the SDS for full handling guidance.

What can I make with it?

Liquid hand soap, body wash, shampoo and other wash-off personal care formulations.

Where is it made?

Made in Australia.

How should I store it?

In its original, tightly closed container, out of the reach of children, away from heat, direct sunlight and incompatible materials.

Does it come with a Certificate of Analysis?

Yes — every batch is quality-control tested for appearance, viscosity, pH and stability, with a Certificate of Analysis available.

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