Dilutions Cheat Sheet for Dr. Bronner’s Castile

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 Dr. Bronner’s Castile 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.

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

Click here to download the Castile Soap Dilution Cheat Sheet.

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.

Makeup Removal: Wet face and lather several drops of soap into hands. Massage into skin. Rinse.

Hair: A couple drops for close-cropped hair or up to ½ Tbsp. (7.5 mL) for long hair, either worked directly into very wet hair or pre-diluted in a cup of water. Follow with Dr. Bronner’s Citrus Organic Hair Rinse or diluted apple cider vinegar.

Bath: Completely depends upon water amount, but approximately 2 Tbsp. (30 mL) soap in an average sized tub. (Doesn’t bubble, but still cleans.)

Shaving: Face – 10 drops; Underarms – 3 drops; Legs – ½ tsp (2.5 mL); Work to a lather in wet hands, apply to area.

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

Foot Bath: ½ Tbsp. (7.5 mL) in a small tub of hot water.

Clearing Congestion: 1 Tbsp. (15 mL) Peppermint or Eucalyptus Castile soap 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.

Laundry: 1/3-1/2 c. (80-120 mL) soap for a large load in a regular washer. Add 1 c. (240 mL) vinegar to the rinse cycle. Optional: For whitening/deoderizing, add 1/2 c. (120 mL) baking soda to wash cycle. Halve these amounts for HE washers.

Handwashing Delicates: 1 capful soap in about 1 gallon (4 L) cold water. Swish gently. Let soak 10 minutes. Swish again. Rinse with clean water. Gently press out excess water with a towel. Hang or lay clothing flat to dry.

Mopping (Wood, Laminate & Stone Flooring): ½ c. (120 mL) of soap in 3 gallons (12 L) of hot water. Dunk mop (microfiber, preferably) and wring thoroughly. On wood and laminate, avoid excess water and mop up wet areas.

All-Purpose Cleaning Spray: ¼ c. (60 mL) soap in a quart (1 L) of water in a spray bottle. Optional: For extra microbial punch, add ¼ tsp. (1.25 mL) tea tree essential oil.

Windows: 1 Tbsp. (15 mL) soap in a quart of water in a spray bottle. Spray and squeegee. Follow up with pure club soda, or half vinegar/ half water and squeegee.

Toilet: Predilute 1:4 with water in a squirt bottle. Add ¼ tsp. (1.25 mL) tea tree oil. For best results, empty toilet. Squirt bowl thoroughly, sprinkle baking soda on the brush, scrub bowl, let sit 10 minutes, turn water on, flush.

Other Uses:

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

Dog Washing: Wet dog thoroughly. Massage in enough soap to create a good lather. Really massage it in down to the skin. Your dog will thank you for it. (Amount varies based on size, hair type, and overall dirtiness.) Rinse thoroughly.

Cleaning Makeup Brushes: Wet the make-up brushes in water. Add 1-2 drops soap to the bristles. Massage in gently for 10+ seconds, then rinse. Repeat as needed until water runs clear.

Plant Spray for Bugs: 1 Tbsp. (15 mL) in a quart (1 L) of water. Optional: Add ½ tsp. (1.25 mL) cayenne pepper or cinnamon. Spray plants twice daily in the cool of the day until infestation clears.

Ant Spray (Not on Plants): ¼ c. (60 mL) Tea Tree Castile Soap in a quart (1 L) of water. (This concentration will burn plants.)

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

Download a one-page copy of this Castile Soap Dilution Cheat Sheet.

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Idoya says:

I would like to know what is the ph present in the heal soul product?

jamie reed says:

Quick question, I was wondering if you portability us. The heal soul, helps with depression and anxiety as a air freshener like in a wax Bruner I have anxiety bad and if I could how would I go by doing this???

Lisa Bronner says:

Hi Jamie – The soap does not do well in a wax burner because the water content would quickly evaporate and leave solid soap in the burner. The best aromatherapy option is to set aside some time for a good soak in a tub with a squirt of your favorite Dr. Bronner’s.

Christina says:

Hi! Is Castile soap safe to
Use with microfiber cloths? (Will it weigh down/clog the fibers?)

Thank you! I’ve been a happy Dr. Bronner’s Castile soap user for years!

Lisa Bronner says:

Hi Christina- It’s always great to hear from long-time customers! I’ve found the grabbiness of micofiber cloths works well for cleaning. If laundering them with Castile Soap, use 1 cup vinegar in the rinse cycle (1/2 cup in an HE machine) to keep them absorbent.

Liz says:

Hello. This is my first time using the Lavender castile soap. Will be trying as a body and hand wash. I have 2 kids(10 and 7). Is it ok for them to use aswell? Also, do I need to dilute for either of those uses?

Lisa Bronner says:

Hi Liz- Excellent! Castile Soap is made for bodies and hands of all ages. For body, use a small squirt on a washcloth or in hands. For handwashing, a drop or 2 will do, but I find it more convenient – especially with kiddos – to keep a foaming pump dispenser with 1 part soap and 3 parts water next to the sink.

Janet says:

Hi, I need a safe and natural eyelid cleaner, what would be your recommendation. Look forward to your reply

Lisa Bronner says:

Hi Janet- For regular, non-medicinal cleaning of the eyelids, the Tea Tree Castile Soap is a great option. You want to be sure to keep your eyes closed, but the Castile is a very gentle cleanser even for such sensitive skin. The tea tree essential oil is good for balancing skin that is either too oily or too dry. Pure coconut oil is also great for lifting makeup, including mascara and eye liner – gently rub pure coconut oil over the eyelids and wipe with a soft cloth. Then wash with the Tea Tree Castile. If you need extra moisture, use a bit of pure coconut oil afterwards.

Brendan Eikeland says:

Why must the soap be diluted?? Whats the issue with full strength

Lisa Bronner says:

Hi Brendan – There’s no danger with using the soap full strength – just the potential for waste. You might use more than you need and run through it faster. I don’t predilute when I wash my face, but I only use 2-3 drops, or in the shower, I use a small squirt. But if you pre-dilute, it’s easier to get a small amount.

The Ingredients – Little Bottle Tree says:

[…] it’s your dog, your sinks, or your floors. You can find details of all these uses on this Castile Soap Dilutions Cheat Sheet. Because Castile soap is a true soap, it reacts with the minerals contained in hard water (add […]

Savy says:

Hello – my entire family has pretty sensitive skin and we recently tried your Castile soap to make hand soap and we’re loving it so far! I’m trying to get my kids to use it as a body wash next. I have the unscented baby Castile soap but want to add some essential oil of my choosing. Can you tell me what the ratio should be for soap and oil when using it as a body wash? Thank you!

Lisa Bronner says:

Hi Savy- I replied earlier, but some comments were lost. I’m responding again, so others can benefit from your question. I’m glad to hear our Castile soaps have been helpful to your family! The ratio for essential oils very much depends on which essential oil you’re using. They vary in intensity. Although I don’t usually predilute the Castile for body washing, instead letting my wet washcloth dilute the small squirt I add, you can predilute it in order to add your own essential oils. Perhaps try a 1:10 dilution. In a 16 oz. bottle, start by adding 10 drops of your essential oil. If that is not strong enough, add a few more at a time and swirl to achieve your desired intensity.

Emily says:

Hi Lisa!
I picked up several products this evening and ready to jump on board the clean train! I used the lavender castile soap this evening for shampoo and just picked up the lavender hair cream (smells so good), salsuds, peppermint sugar soap, tea tree castile soap and pure castile soap! I can’t believe I’ve been missing out this entire time!

A couple questions:
For the castile soap –
1.) I have an HE washer so I was wondering the proper ratios.
2.) How much would you put for a small, medium and large load?
3.) For heavy steins on clothes such as spaghetti steins, mud etc how do you go about getting them out? (Have a 5 year old and it happens quite a bit)
4.) For whites that you want bright what is your regiment?

Unrelated to the castile soap questions –
5.) What makeup brand do you recommend?

Lisa Bronner says:

Hi Emily- Welcome to the Dr. Bronner’s family! You’ve got a great variety of products there! You’ll find my video on laundry helpful ( In a nutshell, use 1/4 cup Castile Soap for a regular load, less for a small load. With Castile Soap, you want to use 1/2 cup vinegar in the fabric softener compartment. Sal Suds is slightly more effective on stains. Dab a small amount directly onto the stain and rub gently into the fabric. For stubborn stains, let sit before washing. For whites and grubbier loads, I often throw in 1/4 cup baking soda. When it comes to makeup, I look for make-up with three criteria: absolutely no animal testing, no problematic ingredients, and looks good. Fortunately, as consumers have demanded this, more make-up brands have arisen to comply. I generally have a blend of Honeybee Gardens, Jane Iredale, Gabriel, and Mineral Fusion.

Esmeralda says:


Could I use the Castile soap all purpose spray to clean my yoga mat?

Based on what I’ve read I was thinking of spraying it, waiting a few seconds and then wiping it off with a cloth.

Any recommendations?

I’m relatively new to Dr. Bronner’s products but I’m truly enjoy them (even with us being on well water-I’m trying to make it work). I just ordered your unscented body balm, shaving soap and lip balm.

Love your products!!!!!

Lisa Bronner says:

Hi Esmeralda- Welcome! There’s an excellent article on the Dr. Bronner’s All-One blog that goes over how to safely and effectively clean yoga mats. The author, Bri, is a Dr. Bronner’s employee who has been teaching yoga for many years. In hard water conditions, such as with well water, you may prefer Sal Suds for your household cleaning and laundry. It doesn’t have the same reaction with the minerals in hard water as the Castile Soap. You may also find my article on soap scum helpful:

Lisa Bronner says:

Hi Cassie- It stands for cups. Sorry for the confusion!

M says:


When I dilute Dr. Bronner’s soap and use it as hand wash in a foaming bottle, the solution always gets cloudy, and sometimes, over time, it turns a little reddish. What can I do to prevent clouding and color change?


Lisa Bronner says:

Hi M- I’m not entirely sure what would cause the reddish tinge, but it is possibly a result from minerals in the water. Try making the mixture with distilled water and see if that improves it. My other guess is maybe there is a piece of metal on the bottle that is corroding and coloring the water.

Elaine says:

Putting cayenne pepper into the insecticidal plant spray … just clogged the wonderful plant mister that I’ve been using for years … and the backup one that I just bought from Amazon. Perhaps you should try some of these things before you just blithely add them to the list.

Lisa Bronner says:

Hi Elaine – I’m so sorry to hear of the clog. I hope that taking the pieces apart and soaking them will help clear them out. There are such a variety of sprayers available, and you are correct that not all work the same. I use a much more mundane housecleaning spray bottle. It doesn’t spray a fine mist. Even without the cayenne pepper, the soap alone is insecticidal.

Kacie says:

what about washing vehicles? I love how its eco friendly and rinses easily, was thinking it would be ideal for washing my vehicles? However, my husband brought up a couple good points of caution so I thought it be best to ask.

Lisa Bronner says:

Hi Kacie- Castile Soap won’t harm car paint and such, but for vehicles and other shiny surfaces I prefer to use Sal Suds, our biodegradable cleaner. Castile Soap reacts with minerals in hard water and can leave hard water spots on shiny surfaces, whereas Sal Suds doesn’t have that reaction. Use about 1/2 Tbsp. Sal Suds in a bucket of water. Check out this blog post for more on car washing:

The 6 Best Eco-Friendly Cleaning Products to Keep Your Home Naturally Clean - Global Green Family says:

[…] olive, hemp, and jojoba oils. It comes in a dilutable formula (there’s even a helpful dilution cheat sheet), so each bottle will go a long […]

sun j says:

“This works out to .2 -.3 oz/ 5-8 mL per pound of laundry or .4 – .6 oz/ 11-18 mL per kg of laundry. ”

When should I use more soap and when should I use less? 11-18mL/kg is quite big of a range.

I’m asking because I know that too much- or too less- soap(detergent) diminishes the cleansing power.Why is the range of soap that can be used for the same amount of load so big?

Lisa Bronner says:

Hi Sun – The amount needed varies based on how soiled the fabrics are. Start with the low end of the range, and increase as needed. Using too much will not diminish the cleaning power of the soap. However, you will run through your soap faster than you may need to.

Pat says:

Hi Lisa,

My husband is looking for a product to clean his CPAP machine. I told him about your product and to use the recommended dilution mixture for the all purpose cleaning purposes. Would that be a fair statement? He’s very nervous about ruining his machine. I told him that he just needs to make sure that he rinses it thoroughly. Any suggestions or words to assure him not to worry?

Lisa Bronner says:

Hi Pat- If the manufacturer recommends a mild soap or detergent, then yes, Sal Suds is safe for cleaning the tubing, mask and such. It’s mild, effective, and rinses exceedingly clean so no residue will be left behind.

Lisa Bronner says:

Hi Jean- There’s no need to. The mop is grabbing the Castile Soap, which is holding on to dirt and germs, and in effect, rinsing it away.

GRACE NG says:

Hi Lisa,
I’m thinking of getting the Lavender Liquid Soap. Do i have to dilute it with water if I’m gonna use it as body and handwash?

Lisa Bronner says:

Hi Grace- Our soaps are very concentrated, and a little goes a long way. Rather than diluting, I use a small squirt in hands or on a wet cloth for body. 2-3 drops cleans hands, or mix it up in a foaming pump dispenser at a ratio of 1 part soap to 3 parts water.

sun j says:

How much laundry in weight is “a large load in a regular washer”?
I’ve heard that many people had trouble adjusting the amount of soap needed for doing laundry… would you be so kind as to post on how much castile soap in mL/oz is needed per lb/kg?
I use a front-load washing machine with a maximum load of 9kg.

Lisa Bronner says:

Hi Sun- Thank you for bringing this to my attention. If your machine is not high efficiency, use 3.5 – 5.5 oz. or 100-160 mL of the Pure-Castile soap. If your machine is high efficiency, reduce these amounts by half. This works out to .2 -.3 oz/ 5-8 mL per pound of laundry or .4 – .6 oz/ 11-18 mL per kg of laundry. Again, for HE machines, divide these numbers by half.

Sarah says:

Hi, Recommendations to use with baby (baby bath)?

Is there a difference between the pump soap and liquid soap?

Thank You

Lisa Bronner says:

Hi Bec- I’m glad you found this helpful.

Melissa Williamson says:

To be honest I’ve never known how to use this soap. I just read the cheat sheet. That helped.

Ana says:

I made foaming soap with castile soap and essential oils but then I was wondering how long does it last since the preservative gets diluted so it doesn’t grow bacteria.

Lisa Bronner says:

Hi Ana- It has a shelf life of 2-3 weeks or so.

Deborah Adams says:

Can you use Dr. Bronner’s Castile soap diluted in a Automated rechargeable Foam Dispenser, if so,
What is the ratio water to soap?

Lisa Bronner says:

Hi Deborah- A good ratio to start with is 1 part soap to 3 parts water. You can then add more or less soap to your preference.

Joyce Hall says:

Thank you I am using peppermint and lavender.I love it .I want to neaver be without it.

Nicole says:

when diluting the castile soap, what kind of water can we add? Tap water? Boiling water that is cooled down? Or distilled water from supermarket?

Lisa Bronner says:

Hi Nicole- Any kind of water is fine, but some people choose to use distilled water for a clearer solution. Castile Soap reacts with the minerals in hard water making for a slightly cloudy, although still effective, solution.

Lisa A Hoffmann says:

Aloha! I received a bottle of the Lavender soap and i was wondering could this be used in my garden? I know the regular soap diluted is supposed to get rid of bugs but i wasn’t sure if i could use this one as well.

Lisa Bronner says:

Hi Lisa- Any of our Castile Soaps can be used in the plant or bug spray dilutions. It’s the soap, not the essential oil, that’s doing the work here.

Sharalyn Chandler says:

Want to use Castile Soap in a foaming soap pump dispenser and I would like to know what the dilutions would be for castile soap and water?

Lisa Bronner says:

Hi Sharalyn- A dilution of one part soap to three parts water is a great starting point. From there, feel free to add more or less soap to your preference.

anon says:

Not helpful – dilutions cheat sheet should be ratios not “a drop or two on a wash cloth”

TNelson says:

Some people would want a lot of suds, while others want to use as little as possible. It’s like when you’re reading a good recipe and it says “a pinch”. Same idea. Personally, I like about 2, sometimes 3 drops on a wash cloth for my face. The peppermint one is great!

Chelse Rhoden says:

Hello ! I hope this message finds you well! I have been dabbling around with going green. Now I am ready to make things in my home that I use on a daily basis, but now I’m going to GIY… Thank you so much for posting all this and letting me see how simple It truly is. I’m on the fence with essential oils. There are so many types out there. What type of essential oils do you use as your add in?Thank you.. I hope you have a blessed day

Lisa Bronner says:

Hi Chelse- It’s great to hear you’re taking some green steps. It is a journey, so no worries on not having it all figured out at the get-go. I don’t use as many essential oils as others. I know there are a ton of benefits which others can tell you more about. I mostly use them for the fun of it, which means I use the scents I like. Mostly that’s sweet orange oil (my favorite) or lemon. I do add some Tea Tree essential oil to my mixtures to boost the antimicrobial action. The soap/Sal Suds has enough action on their own, but sometimes it makes me feel better to add that little extra kick.

Cheryl says:

Hi Lisa. Can I check how often do I need to change the castile foam soap bottle? Will the plastic bottle degrade over time?

Lisa Bronner says:

Hi Cheryl- The many different types of plastic all degrade differently, so there is no one rule. If your plastic is starting to discolor or become cloudy, that is a sign that is started to degrade. I have found the best luck for foaming pumps with ones made out of glass mason jars with pump lid attachments.


Lisa Bronner

Green means life. “Going Green” is living in such a way to promote vitality and vibrancy in every sphere of life. Grab an idea to make your days healthier, simpler, and more beautiful at their core.

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Castile Soap Cheat Sheet

Dilute! Dilute! OK! But how much? Print this guide!