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  • Writer's pictureLoni Searl

Foaming Hand Soap DIY

Updated: Mar 31, 2023

Did you know most of your foaming hand soap is made up of water?

Prior to Covid, I really prefered foaming soap for our home hand washing. I liked how it was simpler for our kids to spread soap all over their hands and for them to rinse it off. Once Covid hit and "wash your hands for 20 seconds" was drilled into my head, I realized the easiness of foaming soap also made it easy to go too fast! Now it's my goat's milk bar soaps you'll find at our sinks (surprise, surprise!). However, for years we used this very simple - and, of course, natural - DIY recipe for our foaming soap. If you prefer foaming soap, give this a try! It will save you a lot of money and plastic waste AND it takes less than a minute to make!

Foaming Hand Soap Recipe

  • Fill any foaming soap dispenser 3/4 full with water

  • Fill almost the rest of the way up with liquid castile soap (or another natural liquid soap), leaving space for the pump

  • Add some drops of essential oil OR use a pre scented castile soap

Once the lid is back on, tilt it back and forth to mix. And you're done!

Some prefer a water to soap ratio of 4:1 (the recipe above is a 3:1 ratio). This isn't an exact science; feel free to adjust the amounts according to how you like the foam to feel!

I've had my kids making this for years. When they were little, I drew lines on the back of the dispenser for them to fill up to so it was pretty much foolproof. They loved picking out which essential oil to add. That being said, I did find the pre scented castile soap held the scent longer, depending how fast we went through it.

Not sure what castile soap is or how it's different from other liquid soaps? Take a look here for a quick read on this eco-friendly option and other ways to use it around your home (including washing your produce).

(As always, other than links to my own products, the links included in this post will bring you to more information, not where to buy a product.)


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