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What is the ph of castile soap?

Updated: May 31, 2023

My Dear Readers,

Every week I am privileged to receive your feedback, reviews, and questions about Whole Naturals Castile Soap. From dilution tips to storage questions, I read and respond to all of your inquiries!

This week, we are going to answer this fabulous question, "What is the pH of Whole Naturals Castile Soap?" But before I answer the question, we're going to travel backward in time, back to high school, for a refresher on pH.

The number on the pH (Power of Hydrogen) scale is a measure that lets us know if a liquid, cream, ointment etc. is basic or acidic. It's important to know this answer because this determines its use - what we eat, what we put on our skin, or what we use as cleaning products. Seven is neutral (think water). Lower numbers are acidic (think of battery acid, and vinegar). Higher numbers are basic (think of bleach and ammonia).

Numbers that are on the extreme ends will not be safe for use on the skin, which is why you may want to protect your skin when handling bleach or batteries.

To get the best lather and cleaning power, most soaps fall within the higher numbers. Anything below an 8 will not be effective as a cleanser.

Whole Naturals Castile Soap falls between 9-10. Which means that it's totally safe for the skin and (I wouldn't use anything on my skin that is higher than 11.)

For more information about the pH of's a quick reference guide:

ph scale for castile soap

What's the Best pH for Soap?

In a nutshell:

  • If the pH is 7 or below → it won't be effective as a cleaner, and you will not get lather

  • If the pH is about 8-9 → then it's a will work as a great cleanser, safe on the skin, with with lots of bubbles

  • Anything above 10→ although you'll get great lather, and great cleaning power, it should not be used as a skin cleanser as it can be harsh and drying

Why is this Important for Whole Naturals Castile Soap?

Whole Naturals Pure liquid soap is made from Purified Water, Organic Coconut Oil, Potassium Hydroxide, Organic Olive Oil, Organic Castor Oil, Organic Argan Oil, Organic Jojoba Oil, Organic Hemp Oil, Organic Almond Sweet Oil, Organic Apricot Kernel Oil, Organic Prickly Pear Oil, Organic USP Vegetable Glycerin (Flaxseed Derived).

It's important for us to keep our pH exceedingly mild. Whole Naturals Castile Soap works great as a household cleaner, and at the same time is gentle and safe for your skin.

We love when our community reaches out! Keep those questions coming!


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