Ultimate Guide to Castile Soap + 20 Genius Uses

NBD, this stuff will change your life.

Nutrition Facts

This post contains affiliate links (what is this?)

Ultimate Guide to Castile Soap + 20 Genius Uses

Castile soap is an indispensable household staple for the health conscious and natural living community.

It’s an all-natural simple soap… huge emphasis on the simple….

So simple it’s made solely from a combination of vegetable oils, completely void of animal products, detergents and preservatives.

Making it the perfect soap for the gluten free, the vegans, and the environmental/health conscious of the world!

With a product like this, you don’t have to worry about what you’re scrubbing and rubbing into your skin or pouring down the drain.

The most recognizable manufactured castile soap is Dr. Bronner’s. Their slogan boasts 18 uses for their product, however people who use castile soap regularly would scoff at the modesty of this statement.

Castile soap can be used as the core ingredient in just about every imaginable homemade product… from shampoos to detergents to veggie wash to ant killer.


Castile soap has stood the test of time and has been used cross culturally for decades.

It originated from the Castile region of Spain, where it was made exclusively from local olive oil.

Over time, the term castile soap has grown to encompass soaps made strictly from vegetable oils, sans any sort of animal products or questionable detergents.

Purchasable castile soap typically contains a combination of vegetables oils such as coconut, castor, olive, hemp and palm kernel.

You can find it in bar or liquid form (liquid being the favorable choice for your DIY projects).


Now the real question is… do castile soap benefits make this product worth its higher price tag?

In my opinion? Absolutely, as there are far more castile soap benefits other than just its minimal list of ingredients.

To name a few…

1. It’s a natural, toxin free soap

Last year, the FDA put antibacterial soaps in the spotlight, announcing they’re no better at washing your hands than regular soap, and may contain dangerous chemicals for the consumer.

They even banned the use of 17 chemicals found in everyday hand and body washes (source).

Guess what kind of soap you don’t have to worry about this happening to?

As stated above, castile soap is exclusively made of various vegetable based oils, therefore making this product free from ingredients the health-conscious community works so hard to avoid.

That being said, it’s important to check the label before purchasing. Some manufactures may try to sneak a few undesirable ingredients into their products.

2. It’s Vegan Friendly.

Dr. Bronners, the castile soap I purchase, is not only devoid of animal products, it’s also not animal tested.

If this is something you look for, check the label to ensure the brand you purchase is cruelty free as well.

3. It’s Ridiculously Versatile.

This goes without saying, as I already told you castile soap can be used in your shampoo, as an ant killer and o, so much more…

Here are just a few of the many ways to put this ingredient to use:


Top Uses of Castile Soap

The fun part! Let us know in the comments below your favorite uses of castile soap from the list or if we skipped any uses you swear by.

Castile Soap for the Body…

Castile Soap Uses | The Little Pine

1. Face Wash

Great way to clean the day off your face.

The Dr. Bronner website recommends applying 2-3 drops into your hands and directly onto your wet skin. If you’d like to add a little more moisture and acne fighting properties, try this recipe:

¼ Cup Castile Soap
1 Cup Distilled Water
1 Teaspoons Almond or Olive Oil
10 Drops of Tea Tree Oil

2. Shampoo

Again, some people massage a few drops of castile soap directly to their hair. I prefer more of a fancy, smell good feel good concoction…

However, I’ll warn you. Upon trying the shampoo recipe below, I wasn’t stoked on the oily texture it left in my hair.

After a little research, I found I wasn’t the only person who felt this way. Many remedied this with a simple apple cider vinegar and water rinse (1:1) after shampooing. The same crew who recommended this considered this their conditioner.

¼ Cup Castile Soap
¼ Cup Coconut Milk (I use homemade coconut milk, if not available use store bought)
Optional: 20 Drops of Essential Oils (Lavender, Peppermint or Lime go really well with the coconut)
Optional: 1 Teaspoon Almond or Olive Oil

3. Body Wash

I love using a few drops of liquid castile soap lathered up in my loofa. To get a little boogie with it try this combo:

½ Cup Castile Soap
¼ Cup Coconut Milk
2 Teaspoons Vitamin E Oil

*Make this in small batches and use within a week

4. Teeth

Let me be completely honest with you… brushing me teeth with soap brings back horrible memories of sassy elementary school days, and I wouldn’t voluntarily do such a thing to myself.

That being said, many people swear by adding 1 drop of castile soap to their toothbrush and brushing their teeth.

Others recommend adding a drop to a dollop of coconut oil. I recommend trying it, knowing it will taste like soap, and letting me know what you think. (PS… don’t swallow this stuff)

If you hate it as much as I know I will, try my coconut oil toothpaste recipe. It’s amazing 🙂

5. Shaving Cream

I cut out shaving cream years ago. Originally because I was poor in college and wanted to cut down my spending.

But then I realized I didn’t need it, especially because I used an early version of the above body wash.

That being said, castile soap’s oil blend helps the razor to glide over the surface of your skin.

Dr Bronner’s website recommends to work the following quantity into a lather and apply to your skin for a nice clean shave:

Face: 10 drops
Underarms: 3 drops
Legs: ½ tsp

6. Hand Soap

Add the following to a foaming soap dispenser (I reused an old foaming soap dispenser, if that’s not an option you can buy a snazzy one on Amazon)

¼ Cup Castile Soap
¾ Cup Distilled Water
5 Drops Tea Tree Oil

7. Clearing Congestion

Some swear by Dr. Bronner’s decongestive properties. Give this recipe a try and let me know what you think!

1 Tablespoon Castile Soap
Bowl of steaming hot water

Breathe in the mist with a towel draped over your head. Make sure the steam doesn’t burn your skin!

8. Relaxing Bath

Although castile soap won’t make your bath extra bubbly, it will clean the water, and the essential oils will help make you one happy and relaxed bather!

This recipe is for an average sized bath tub:

2 Tablespoons Castile Soap
optional: a few drops of lavender essential oil



Castile Soap for Random Home Stuff We All Need…

9. Fruit & Veggie Wash

If you’re reading this article, you’re probably just as concerned about the chemicals being sprayed on your produce as I am.

And since we can’t all grow our own fruit and veggies, let’s do something else about it, like using this veggie wash…

Bowl of water
¼ Teaspoon Castile Soap

Stir ingredients together in the bowl. Then dunk and swirl your produce in the bowl to knock off any dirt and debris. Rinse produce under water before eating.

10. Dog Shampoo

Who woulda thought, you could use the same product on veggies that you could to wash your dog?!

The amount you use here greatly depends on the size of your dog and the length of their hair. First wet your dog, then work castile soap in your palms and into their fur.

Get a good lather going and massage down to their skin. Rinse them off with water making sure to get all the soap out and voila! You and your dog will be stoked.

11. Ant Spray

I have yet to try this, as I haven’t had an ant issue lately. However, Dr. Bronner’s site recommends the following:

¼ Cup of Castile Soap (Tea Tree Oil Scent)
1 Quart of Water

Add to a spray bottle and spray in infested areas. This blend has a high concentration of castile soap and will burn plants, so don’t spray on your greens!


Castile Soap for the Home…

Castile Soap Uses | The Little Pine

Imagine a world where you can clean your house without holding your breath. O wait, castile soap users have been doing that for a while!

Here’s how to get started…

12. All Purpose Cleaner

Pour the following ingredients into a spray bottle, shake to combine and clean away! 

¼ Spray bottle full of White Vinegar
2 Tablespoons Castile Soap
Fill bottle the rest of the way with water
Tea Tree Oil (Or just use Tea Tree Oil Castile Soap)
Lemon or Orange Essential Oil

13. Dish Soap

Add a few drops to your dishes with some hot running water and scrub, scrub scrub!

If you want a batch of premade dish soap at the ready, dilute the castile soap in water using a 1:10 ratio.

14. Reusable Kitchen Wipes

These are a total game changer. Completely reusable and chemical free! Check this:

Cut an old t-shirt (or whatever fabric you have sitting around) into 8×8 square.

Using an old jar (I use an old grape leave jar; mason jars work as well) fill with 1 cup of water + 1/8 cup castile soap + 5-10 drops of essential oils (I use lemon or orange oil).

Stir to combine, then add the cut fabric. Stir them around so they soak completely.

The best part? After using each wipe, toss the fabric in the wash and make a fresh batch!

15. Mopping

Combine the following ingredients in a large bucket for your ideal floor cleaner.

½ Cup Castile Soap
3 Gallons of Hot Water

16. Outdoor/Car Windows

You’re right, you don’t need soapy water to clean your indoor windows. But outdoor windows typically need an extra oomph to get rid of that nasty dirt and grime.

Not to mention, those who are making the switch to natural cleaners for their indoor windows will probably require something more serious to eliminate the residue from the previously used chemical cleaners… This may be a good option to get you started!

1 Tablespoon Castile Soap
1 Quart Water

Combine in a spray bottle, and spray/wipe to clean. To eliminate streaks, follow up a good spray and wipe of h a half vinegar half water solution.

17. Toilet Bowl Cleaner

Understandable if you don’t want to get rid of your toilet bowl cleaner all together, although you can implement a castile soap scrub in between washes!

If you’re looking for a replacement recipe, this is what I use:

¼ Cup Castile Soap
1 ¼ Cup Water
¼ Teaspoon Tea Tree Oil
Baking Soda

I spray the area I’d like to clean, then sprinkle baking soda and scrub. Let the scrubbed mixture sit for a few minutes then rinse/flush the toilet.


Castile Soap for Camping…

At this point I seriously can’t imagine car camping without my jumbo-sized bottle of castile soap.

If you’re a fellow camper, you’ll appreciate the versatility and ease of this stuff!

I carry around a few extra empty bottles (typically from iced coffee, or old mason jars) and mix up whatever concoction needed while out and about!

The most useful ways I’ve found to put castile soap to use while camping is:

18. Camping: Dish Soap

I fill up an empty bottle with water and add a few drops of castile soap, I always try to keep it close to the 1:10 ratio used for the above dish soap (making sure to leave at least an inch at the top).

Shake it up and voila – camping dish soap at your disposal!

19. Camping: Laundry

Yes, I know laundry on the road is a pain and should only be done if absolutely necessary.

Add a few drops of castile soap and a whole lot of water to your laundry and feel squeaky clean the rest of your trip!

20. Camping: Reusable Wipes

It’s hard to go camping without something as useful as Wet Wipes, but I hate all the chemicals in them!

So I started making my own using the same recipe as the above reusable wipes, and replacing the t-shirt with a more abrasive surface, such as hand towels (making sure they’re thin enough to soak up the concentration).


Where to buy castile soap

Are you ready to jump on the castile soap band wagon? Fantastic, glad to have you here 🙂

The question is where to buy castile soap in bulk so you can save some moola… Here are my recs.

If you’re planning on making a lot of the recipes in this article, then buy in bulk. You’ll save money in the long run. I also love buying the unscented so I have control over the scent of my products (via essential oils).

Tea Tree is a helpful castile soap to have around, especially if you don’t want to add tea tree oil to some of the recipes that recommend adding it…

I also love the Peppermint scent…


Have you already tried using castile soap? What do you think? What’re some of your favorite uses for it??