has any one tried Babassu Oil in soap?
Yes, and I find no real difference in soap made with Babassu versus Coconut oil. Babassu is replacement for CO and if you want a gentle soap I would not go over 20%, for me I do not go over 15-17%. You mention you want a moisturizing but uaws 30% CO in your soap. CO, Palm Kernel and Babassu are the oils that make soap very cleansing depending on the percentage. Most do not go over 20% but some do and love it. I have a soap here that I figure must be over 20% CO because it dries my hands out badly. It lathers like a champ, but it is not for me and it is not a soap I made.
As Earlene mentioned, Babassu is expensive here and I do not waste it. Actually I just checked the price per lb if I were to purchase it and it comes out to $7 per lb, which I consider expensive. I pay less than $1 per pound for Lard, Tallow or Palm Shortening. That is cheap.
It really is a waste to use over 5% Castor in cp or hp soap and accelerates trace noticeably. It is not a bubbly oil in soap it help support bubbles. I will also mention 1 liter is not a lot of Castor. Once you start making multiple batches you will find a liter of oil does not last long. Castor does have a long shelf life.
While I am not a fan of OO in soap it does make a nice soap, and will harden up during cure time. You simply cannot judge a few days old soap and know how it is going to feel after a 4-6 week cure. I prefer Avocado Oil, Canola (Rapeseed) HO, Sunflower HO, and Safflower HO (high Oleic). Many like to use Rice Bran since it is usually fairly inexpensive. Apricot Kernel and Peach Kernel Oil are lovely, and lend some bubbly factor but expensive.
Butters are wonderful for adding hardness to vegan soaps if you choose not to use palm, but I can and do make soaps that rival high butter soaps without using any of the expensive butters. All pure butters are imported or at least I do not know of any that are not imported at least in the US. Most butters such as pistachio, avocado, blueberry, aloe, horsetail, coffee butter etc are made by mixing the oil with either vegetable oil or CO. You can get the same effect in soap by using shortening and some of the oil. As for Aloe you might find it in gallons know as Aloe Juice. Here we can find it at Walmart stores for approx $7 per gallon. Amazon has the same aloe juice I buy but it is double the price.