Dilutions Cheat Sheet for Dr. Bronner’s Castile Soap


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Dilute! Dilute! OK!* But how much? Here is a quick reference. None of this is a hard and fast rule. If your stuff is really dirty or your water is really hard, then you may want to use more than the recommended amount. However, this should get you started. You’ll notice that for some applications, I recommend pre-diluting the soap – combining the soap with water in a container. For other applications, the soap is diluted by the water present in the situation. It’s a matter of personal preference. Keep in mind that if you predilute, you are also diluting the preservative (tocopherols – vitamin E), so the shelf life drops. Use within a couple weeks. And yes, there are 18 uses here. Dr. Bronner's Castile Liquid Soaps

* Long time Dr. Bronner’s users will remember this expression from the old labels.

Body Uses:

Face: 2-3 drops on wet hands, applied to wet face

Body: one small squirt on a wet washcloth, applied to a wet body

Hair: ½ Tbsp. in your hand, worked into wet hair, or dilute ½ Tbsp. in ½ a cup of water and work that into wet hair

Bath: Completely depends upon water amount, but roughly 2 Tbsp. soap in an average sized tub. (Doesn’t bubble, but still cleans)

Shaving: Face – 10 drops; Underarms – 3 drops; Legs – ½ tsp; Work to a lather in wet hands and then apply to area.

Teeth: 1 drop on a toothbrush. (Yes, it tastes like soap.)

Foot Bath: 1 ½ tsp. in a small tub of hot water.

Clearing Congestion: 1 Tbsp. in a bowl of steamy hot water. Breathe in mist with a towel draped over the head.

Household uses:

Dishes (handwashing): Pre-dilute 1:10 with water. Squirt on a scrub brush and scrub dishes.

Laundry: 1/3-1/2 c. of soap for a large load in a normal washer. Add ½ c. vinegar to the rinse cycle. Use half of these amounts for HE

Mopping: ½ c. of soap in 3 gallons of hot water

All-purpose cleaning: ¼ c. soap in a quart of water in a spray bottle. Add ¼ tsp. tea tree essential oil if desired.

Windows: 1 Tbsp. soap in a quart of water in a spray bottle. Follow up with pure club soda, or half vinegar/ half water.

Toilet: Predilute 1:4 with water in a squirt bottle. Add ¼ tsp. tea tree oil. Empty toilet, squirt bowl thoroughly, sprinkle baking soda on the brush, scrub bowl, let sit 10 minutes, turn water on, flush.

Other Uses:

Fruit and Veggie Rinse: 1 dash (approx.. ¼ tsp.) in a bowl of water. Dunk produce and swish. Then rinse in clear water.

Dog washing: Amount varies widely depending on size, hair type and length, and overall dirtiness. I wet my dog thoroughly, then start to work in castile soap up and down their body until I have a good lather. Really massage it in down to the skin. Your dog will thank you for it.

Plant spray for bugs: 1 Tbsp. in a quart of water. Add ½ tsp. cayenne pepper or cinnamon, if desired.

Ant spray (not on plants): ¼ c. tea tree soap in a quart of water. (This concentration will burn plants.)

I’ve tried to keep this short and sweet. If you have any questions, please ask away!

To download a one page copy of this cheat sheet, click here.


379 thoughts on “Dilutions Cheat Sheet for Dr. Bronner’s Castile Soap

  1. Can you please send a sample to William Norman, 776 Jefferson Hwy, Staunton Va, 24401. Thanks in advance, if I like it as much as I believe I will then I’ll be buying regularly from my local Martin’s, telling friends, and leaving positive reviews on the internet.

  2. wanted to throw my hat in the ‘wash’ & say I love this soap! I prefer lavender at the present but would love to try other scents. WOuld you happen to have a ‘sniff stick’ available for reference? yes I know that’s a silly ?? yet I’m sure I could talk my 3 sons into using if they tried ! LOVE it!

    • I’ve personally only had the chance to buy the unscented baby mild stuff, and even that smells nice, sort of like Johnson’s baby shampoo but I’m not sure. It reminds me of something else that I’ve tried before for sure. So, I don’t think that any of them smell bad, but I’m not sure about the tea tree one, as I don’t like tea tree scent normally.

  3. Hi there, just wondering if I can use the baby unscented for my 1 year old for toothpaste?

  4. Hi Lisa, thank you so much for this cheat sheet. I am wanting to pre-mix your peppermint pure castile soap in one of the large (US 1 GAL) bottles so we can use it from there to fill our hand soap dispensers. Could you let me know what you reccomend for mesausurements for proper dilution? thank you!

  5. I’ve figured out the way to make the Bronners go even further. I take a foam soap pump and put 1 part Bronners ( any flavor) to about 5 parts water. I use it on dishes, my hair, hands, body and everything in between. I have a Bronners foam pump in every room. Sometimes the baby gets into it but it’s completely safe for her to put in her mouth or get all over any surface so I don’t mind at all. In fact it helps me clean. I also use a teeny tiny amount of Bronners in a spray bottle full of water to clean EVERYTHING.

    • Which kind of hand pump do you use? A new one, or a recycled one (like an old Method brand, for example)? I’m looking to replace ALL of the pumps in our house with foaming Dr. Bronner pumps, due to some irritant contact dermatitis on my hands/light eczema–the doc cannot seem to figure it out, but I suspect chemical irritants in my hand soap (clear Softsoap). I already use Dr. Bronner’s in the shower, so I don’t know why I didn’t think of this sooner. Thanks!

    • The foam pumps I recommend to reuse are “Method”, “Bath and Body works” and one I recycle from the hospital after my baby was born. Definitely reuse bottles when you can to reduce your carbon footprint.

  6. Can the liquid castille soap be used for hand washing delicates? If so, how much should be used? Thank you!

  7. Just received Dr. Bonner’s Hemp Lavender Castil Soap and it smells wonderful. I have been reviewing you dilution cheat sheet. Would it not be a good idea to mix ahead in a bottle and keep in the bathroom for a full-body wash? I don’t want to turn my seven year old loose with the entire bottle. Was thinking of mixing some up for him to keep in his bathroom. Please let me know your thoughts. I could just add to each individual bath, but he is going g through the “he’s a big boy and doesn’t need mom for everything” phase. Thank you for you time and consideration. Also, thanks for providing a product that you believe so much about!! Great to see these days.

    • I have been pre-diluting Dr. Bronner’s soap for several years, and have never had a problem. I prepare an 8oz squirt bottle, or fill up a foam soap dispenser for hand washing or whatever.

  8. Hi, i am a new user to liquid soap. Can i use this soap for wash my beard ?
    Thanks so much

  9. Some place on your blogs, I saw a comment about how to use Dr. Bronners in a pump container. where can I find that? Am a loyal Dr Bronner’s user for about 40 years!!! Great stuff! OH! I also saw something about it being really good for pimple problems.

    • Here is why Bronner’s is superior. I have been using it on my problem skin for about a year now and it works incredibly well. The lack of chemicals has been helping my skin heal from the damage from all the other priciest. There is actually no other product I will use on my face any longer. It cuts the grease, while being natural and leaves the skin very soft at the same time. My foam pump with Bronner’s actually doubles as a face wash in the bathroom. It is so quick an simple. I pump on my hands, very lightly rub it on my face in a circular motion and rinse with only one rinse of water. That’s right. It rinses so quickly that when I tried to go back to a face wash I was appalled by the effort involved in rinsing for 5 minutes. I am so lazy now with Bronner’s because it allows me to be. The rinse is superior to any other soaps or detergents hands down.

  10. Hi Lisa, I love this list, thank you! Any chance you have a recipe for cleaning the tub??

  11. Do I need to pre dilute the soap for laundry since it will be mixed with water anyways?

  12. I want to use dr bronner’s soap for handwashing and in the shower but would like to put it in a pump bottle for these purposes. I’m having a hard time finding a pump bottle that doesn’t just clog after a few days. Can anyone recommend a pump bottle that will work?

    • I use the foaming pump dispensers. I buy a bottle of foaming soap, use it up, and re-fill the dispenser with a dilution of Dr. Bronner’s. I have used several different brands, and haven’t had a problem with any of them. I mix it in an 8oz. container. I use 1-2oz of Dr. Bronner’s, fill the rest of the container with water, and then fill up the foaming soap dispenser. I’ve been doing this for several years. I’ve tried different scents, but I keep coming back to lavender.

    • I use the foam pumps for the “method” soaps from Target. They work for 2 years plus. I also use the bath and body works foam pumps to fill with Bronners.

  13. What is the shelf life of the pure Castile soaps and the shelf life for sal suds? Thank you!

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