Dr. Bronner’s Castile Soap Reviews & Dilution Guidelines

a bar of dr bronners castile soap

Dr. Bronner’s Castile Soap has been dubbed by many as the “Miracle Soap” because of its multiple uses. For more than 150 years now the Bronner family has been in the soap-making business, although the official Dr. Bronner’s business was founded in 1948.

If you’ve ever been in your local health food store, there’s a good chance that you have seen the Bronner bottles lining the shelves of the cleaning isle in a variety of colors and sizes.

Their Castile soap comes in 8 different scent varieties, and unlike other “traditional” soaps on the market, it can be used in 18 different ways. Below we’ll take a closer look at Dr. Bronner’s amazing Castile Soap, including its variety of uses, its cost, why you might want to try it, and where you can buy it.

Dr. Bronner’s Multi-Functional Castile Soap

a six pack of soap

As Americans, we’re used to buying a different cleaning product for all areas of our life.

We need shampoo to wash our hair, soap to wash our hands and bodies, toothpaste for our teeth, deodorant sticks, and a whole other line of soaps and cleaning products for our home and bathroom.

Basically, you get the idea…we’re forced to buy many different products, but wouldn’t it be nice if there was just one product that could handle many of these areas?

That’s where Dr. Bronner’s comes in.

That’s where Dr. Bronner’s comes in. Dr. B’s Castile Soap is touted as an 18-in-1 soap, meaning it has 18 different uses. According to their website, you can use it for everything from shampoo to toothpaste, as long as you dilute it properly.

With that in mind, let’s look at all of the advertised uses for this soap, and then we’ll give the dilution specifications for each.

Yes, you want to dilute in most cases, but her guidelines might vary depending on the situation. If you’re using the soap to clean a stain, for example, the dilution recommendations might change depending on how bad the stain might be.

Keep in mind that the dilution recommendations are from Bronner’s granddaughter, Lisa, and she says they aren’t necessarily an exact science.

Face Wash

a woman washes her face with dr bronners soap

2 to 3 drops of soap added to your wet hands. Apply the soap drops and water to your face.

Body Wash

Apply a small squirt of soap to a wet washcloth. Use in the shower or bath.


Add about a half tablespoon of soap to your hand. Massage it into your wet hair. You can also dilute the half tablespoon of soap with half a cup water, and then add that to your wet hair. Obviously, these guidelines might vary between men and women, and can change depending on how much hair you actually have.


Bronner’s doesn’t make a bubble bath, but when added to the water it can be used to clean your body. This will vary depending on the size of the tub, and how much water you add, but two tablespoons of soap is usually a good amount to start with.

Shaving Cream

a guy shaves his face with a hand mirror

The miracle soap can be used for many different kinds of shaving, so the amount you will need depending on which area you’re targeting.

Here’s a rough guideline for the face, legs, and armpits:

  • Face: About 10 Drops
  • Armpits: About 3 Drops
  • Legs: 1/2 Teaspoon

You will want to work the soap into a nice lather with a small amount of water on your hands. Once the lather has built you can apply it to the area you’re planning to shave.


Add one drop to your toothbrush and starting buffing away. Keep in mind that this stuff is still soap, so it’s not going to taste like toothpaste – it should taste soapy!

Dish Soap

a pile of dirty dishes

Don’t use Bronner’s in your dishwasher! This is just for washing by hand. Usually, you will want to go with 1 part soap to 10 parts water.

Pre-mix it, and then add your water/soap concoction to brush or sponge and you’re ready to scrub some dishes.

Laundry Detergent 

You will also need some vinegar handy if you’re using castile soap in your washing machine. You will want 1/3 to 1/2 cup of soap for a large load of laundry in a “normal” top-loading washing machine.

You will want to add a half cup vinegar to the rinse cycle. If you have an HE washing machine, you will want to cut these measurements in half.


Add a half cup Bronner’s to 3 gallons of hot water.

Multi-Purpose Cleaner

A quarter cup soap and a quart of water can be mixed up in a spray bottle. You can also add a quarter teaspoon tea tree oil if you want.

Window Cleaner

Add one tablespoon of soap to a spray bottle, along with a quart of water. You can follow that with some club soda, or a mixture of 1/2 water and 1/2 vinegar.

Toilet Cleaner

a very nice bathroom with grey tiles

1 part soap to 4 parts water, prediluted in a spray bottle is what’s called for here. You’ll also want to add a quarter teaspoon of tea tree oil.

When you’re ready to clean your throne, empty the bowl (you’ll need to turn off the water to the toilet to do this), give it a good soaking with your Bronner mixture.

Add some baking soda to your toilet brush, give the bowl a good scrubbing,  and then wait 10 minutes.

After the allotted time has passed, turn your toilet water back on and flush the bowl one more time.

Foot Soak

1 and a half teaspoons in a foot-sized but of warm/hot water. Soak and scrub accordingly.

Clearing Congestion

Add one tablespoon to a bowl of hot, steamy water. Breath in the misty steam – it helps to drape a towel over your head to lock in the steam.

Ant Spray

a close up of ants

A quarter cup of the Bronner Tea Tree Soap in a quart of water.

Not to be used on plants, though, as this strength can burn the plants.

Bug Spray for Plants

One tablespoon soap added to a quart of water. You can also add half a teaspoon of cinnamon or cayenne pepper.

Produce Rinse

Just a dash of soap (maybe a quarter teaspoon or so) in a bowl with water. Clean the fruits or veggies in the bowl, take out and rinse with clean water.

Dog Soap

This is going to vary big time, depending on the size and type of dog that you have. Make sure to thoroughly soak your dog, and then you can start massaging the soap into their fur.

Work up a nice lather, and massage the soap mixture into their fur and down to the skin.

The amount you need may also depend on how dirty your dog is, so feel free to rinse and repeat as needed.

Does it Really Work?

rose scent pure castile soap

The short answer is YES, but there are going to be a few caveats. Is Bronner’s soap going to work as well as cleaning up a nasty grease spill as a say a Lysol wipe?

Probably not, but you’re also not going to be utilizing a nasty chemical in your home, which is pretty important to a lot of us.

Bronner’s does work and works well when used correctly.

Plus, it’s a much safer alternative to many of the nasty cleaners, anti-bacterial soaps, and detergents that are typically offered at most grocery stores.

Final Thoughts: Where Can You Buy it?

Cost: Starting at $6.54

There are many different places that you can buy Dr. Bronner’s castile soap, including your local health food store, and even Target.

My favorite place to buy this castile soap is online at Thrive Market (read all about them). That’s where I have found the best deal, anyways.