About Castile Soap

Castile soap is one of the oldest cleaning products still used today. Long before synthetic detergents existed, people were cleaning with simple soaps made from plant oils, water and alkali.

It's widely used for everything from hand washing and body care to household cleaning.

What is it

It's a pure soap and not a detergent. It can come in the form of liquid or hard bar soap.

Traditionally, Castile Soap is made from only 3 ingredients olive oil, water and lye and the name originated from Catilia in Spain famous for their olive oil and luxury soap in the middle ages.

How it's made

Castile soap, like all true soaps, is made through a process called saponification. Oils or fats are combined with an alkali, creating a chemical reaction that transforms them into soap.

One of the benefits of traditional soap making is that naturally occurring glycerine remains in the final product. Glycerine helps attract moisture and contributes to the moisturising feel many people associate with quality soaps.

The finished product is a true soap made from fatty acid salts, rather than a synthetic detergent.

How it cleans

Like all soaps, Castile soap works because it's a surfactant.

When soap is added to water, molecules surround dirt and oils, forming tiny structures called micelles. The oils become trapped inside the micelle, allowing them to be rinsed away with water. This process helps remove grease, body oils, food residue and everyday dirt from surfaces, fabrics and skin.

Without soap, water alone struggles to remove oily substances. Soap acts as a bridge between oil and water, making cleaning far more effective.

What you can use it for

One of the reasons Castile soap has remained relevant for centuries is that it can be used for many different cleaning tasks.

• Body Wash
• Hand Wash
• Household Cleaning
• Dish Washing
• Laundry
• DIY Cleaning Products
  

Environmental Considerations

One reason Castile soap remains popular is its environmental profile.

The fatty acid salts that make up soap readily break down in soil and water. They do not tend to accumulate in the environment and are generally considered less harmful to aquatic ecosystems than many synthetic surfactants.

Castile soap is also valued for its ingredient transparency. A quality Castile soap often contains only a few easily understood ingredients, making it simpler for consumers to understand what they are using.