Our Story
The Castile Soap Shop began with one simple idea: To offer natural, organic soaps that you can trust to be good for both your body and the planet. From this foundation, we’ve built a global network of makers committed to quality and sustainability—from the U.S. to France, Australia, and beyond.
What is Castile Soap?
What is Castile Soap?
At its core, Castile soap is a vegetable-oil-based soap. It takes its name from the Castile region of Spain, where it was originally crafted from pure olive oil.
While traditional Castile soap remains olive-oil-based, modern versions may also include other plant oils — such as coconut, hemp, jojoba, argan, neem, or palm — in varying blends. True Castile soap contains no animal fats or synthetic detergents.
Available in both bar and liquid forms, Castile soaps can vary across brands and formulations, each offering slightly different properties. Still, because they all share a vegetable-oil foundation, they provide the same fundamental benefits: a gentle, effective, and plant-derived clean.
How is it beneficial to the environment?
How is it beneficial to the environment?
Unlike many commercial cleansers that use synthetic surfactants like SLS and artificial fragrances, Castile soap relies on saponified plant oils for its lather and essential oils for scent.
These plant-based ingredients are inherently biodegradable, breaking down quickly and completely in the environment without leaving harmful residues. What's more? The plant-based formulation results in a less resource-intensive and less polluting manufacturing process compared to complex industrial detergents, reducing its overall environmental footprint from production to disposal.
Its efficient cleansing also means it rinses away cleanly with less water, helping to conserve this vital resource during use.
Why use Castile Soap?
Why use Castile Soap?
Castile soap is gentle and suitable for all skin types, particularly for sensitive or dry skin.
Unlike many commercial soaps, which strip away glycerin during production, Castile soap retains this natural byproduct of saponification. The glycerin acts as a humectant, drawing moisture to the skin to hydrate and soothe it. This makes it safe and effective not only for adults but also for babies and children.
Furthermore, Castile soap helps to gently cleanse pores, removing impurities without harsh stripping. It helps reduce breakouts and blackheads by keeping pores clear. The mild, non-irritating formula has also made it a trusted choice for managing skin conditions like eczema.
Liquid Castile Soap
Our Brands
Testimonials
"I love that they reach out to the masses through their mobile refill service organised once a month. Thank you for helping to reduce plastic by providing such service!"
Isabel Wong
Verified Customer
"They had a variety of different castile liquid soap and Bar soap for your needs from head to toe. And u can use their castile liquid soap for all types of cleaning in your home."
Lisa Zhang
Verified Customer
"Thank you for a fuss free refill day! Refilling a gallon of Castile soap on public transport is no joke and I appreciate that my own plastic container is reused"
Kheng Soo
Verified Customer
"Nice products and friendly staff. Very informative and educational workshop. Cosy shop environmemt . Enjoy spending time there. 👍👍"
Edith Yuen
Verified Customer
"Nice smelling dog shampoo. Takes a wee bit longer to dry the fur coz of a good amount of essential oil in the shampoo. Good lathering due to the saponified coconut oil. Would purchase it definitely."
Grace Lin
Verified Customer
