Castile Soap
Explore liquid and bar Castile soaps, including scented and unscented options. Compare ingredients, intended uses and pack sizes, from everyday bottles to larger refills. Follow each product's own dilution directions.
Castile Soap
Castile Soap in Australia – Natural, Unscented & Everyday Low-Tox Cleaning
Castile soap is one of the most versatile natural cleaners available, made by saponifying plant oils such as olive and coconut into a gentle, biodegradable soap. Unlike synthetic detergents or sulphate-based body washes, true Castile soap contains no SLS/SLES, petrochemical surfactants or artificial fragrance—making it suitable for sensitive skin, baby items and low-tox home cleaning.
This collection features unscented, lightly scented and solid Castile soaps ideal for body care, hand washing, dishes, laundry, and DIY multi-purpose cleaning blends. Whether you're switching to fragrance-free products, reducing chemical load in your home, or looking for a simple all-in-one cleaner, these plant-oil formulas deliver reliable performance with minimal ingredients.
Explore cleaning routines, dilution tips and room-by-room guides in our Non-Toxic Home Hub.
▶ See our Castile Soap standards and expert recommendations
The Eco Traders Castile Soap Standard
Our Castile soaps are selected for ingredient purity, skin compatibility and safe home-cleaning performance.
- Plant-Based Formula: Made from saponified olive, coconut and other vegetable oils—no synthetic detergents.
- Biodegradable & Greywater-Friendly: Suitable for many Australian households aiming for low-tox, environmentally conscious cleaning.
- Fragrance-Free & Scented Options: Unscented soaps for babies and sensitive skin; scented blends for daily washing.
- Liquid & Bar Formats: Liquid versions suit dilution for home cleaning, while bar soaps offer minimal-waste body care.
- Multi-Purpose Value: A single bottle replaces hand wash, body wash, dishwashing liquid and many surface sprays.
See ratios for body wash, floors, laundry, dishes and DIY household cleaners in our detailed tutorial: How to Use Castile Soap.
Shop Australia’s best Castile soaps.
Choose your Castile soap format
Liquid soap and soap bars suit different routines. Start with the use stated on the label, then consider how you will dispense and store the product. Products within this range vary in fragrance and formulation; check the full ingredients if you are avoiding a particular ingredient.
Is every Castile soap suitable for body and household use?
Use only as directed on the individual product. A soap marketed for hands, body or household cleaning may specify different applications and dilutions. The word Castile alone does not establish suitability for a particular surface, for babies or for sensitive skin.
Should I choose unscented or scented soap?
Compare the actual ingredient list and fragrance statement. If you prefer a product without added fragrance, choose one explicitly labelled that way. A botanical fragrance is still a fragrance, and unscented does not guarantee that a product will suit every person.
Is a refill always better value?
Compare the same formula by unit price and check how much you will use. Larger packs need suitable storage and a compatible dispenser. Keep refill containers labelled and follow the manufacturer's directions for decanting and dilution.
Key takeaways at a glance
- Bottom line
- Compare liquid and bar Castile soaps by formula and intended use.
- What you will find
- Scented and unscented soaps, including larger refill options.
- What to compare
- Different formulas and concentrations have different application instructions.
- Before you choose
- Follow the specific label's dilution, use and surface guidance.