With summer sandal season looming on the horizon in the northern hemisphere, a lot of attention is paid to our feet. Check out this recipe for a foot scrub bar containing stearic acid. (Which can be paired nicely with the thicker foot cream with stearic acid we made last week...)
A lot of the ingredients are the same as they were for the body scrub on Friday, but we're using them in slightly different amounts and adding a few others to make the product more moisturizing for our lovely feet! (Take a peek at that post if the ingredient that interests you isn't explained in detail here.)
We've upped the amount of stearic acid to make this bar hard and resilent when used with our feet. It'll still be lovely and moisturizing, but we want it to be able to scrub a lot harder than the body scrub bar without breaking. I'm reducing the hard butter to make up for that change.
As an aside, I wouldn't use kokum in this bar as it will be very very hard and won't glide over your feet well. I include it as an option as some people might like that feeling, but I certainly didn't. I definitely suggest cocoa or mango butter!
I'm adding wax to this bar to make it stay on our feet longer. I have found that 4% beeswax with 10% stearic acid can be a bit draggy, but it definitely makes the moisturizing oils and butters feel like they're on my feet longer, so I include them. If you really hate the feeling of wax, leave it out and include more oil. (If you want to use a different wax, please see the notes beside the beeswax entry.)
I'm using shea, coconut, or babassu oil for my slightly greasier, less stiff oils at 20%. You could use all cocoa, kokum or mango butter here and have a really hard bar, or include the shea or coconut oil and make it a slightly softer bar. I really don't suggest using a harder butter for that 20% as the bar will be really draggy and unpleasant on your skin.
As an aside, I really didn't notice a difference in skin feel when I used babassu in these bar...