Unsaponifiables
If any of you have anything that could help me understand unsaponifiables and their effects better, I would be thankful
UNSAPONIFIABLES are a large group of compounds called plant steroids or sterolins. They soften the skin, have superior moisturizing effect on the upper layer of the skin and reduce scars. The sterolins in avocado oil have been found to diminish age spots. Oils with the highest unsaponifiables are shea butter, avocado oil, sesame oil, soybean oil and olive oil. (From my files; source unknown)
So, that's why shea butter; avocado, sesame, soybean and olive oils are highly desirable in CP and HP hard bars for their conditioning effects. However, in Liquid Soap, they present a bit of a problem in that unsaponified bits float free -- and a high % superfat adds to the problem because it allows more free floating oil, which leads to a greater probability of the soap going "off", i.e., rancid. Not good. :sad:
Oils for Liquid Soap
...I have avocado oil, argan oil, kukui nut, and jojoba oil; pine tar; at the store ...hemp, almond, grape, wheat, makadami, moringa, neem, tamanu, thistle, fennel flowerseed, seaberry and ricin -oil; ...I think I have seen linseed somewhere; ...olive, coconut and sunflower oil is quite common.
Hiya Truth,
Sorry I haven't been able to get back to you sooner. That's a nice selection of oils, altho I'm not familiar with some of them -- wheat (as in "wheat germ"?), thistle, flowerseed, seaberry, ricin; and I've only seen fennel as an essential oil. Neem, tamanu, and fennel are said to be beneficial for skin issues:
Neem Oil can be used as a majority soapmaking oil blend because it is easy to saponify (with its balanced blend of saturated and unsaturated fatty acids), and because it contributes hardness and conditioning properties to its soaps. Use rate: 10-40% Downside: It is odorific! LOL
Tamanu Oil - Use rate: 5% in lotions, etc.
This slightly waxy oil is a traditional medicine for its analgesic, anti-inflammatory and cicatrizant properties. Formerly used to treat leprosy. It is soothing for eczema and skin irritations; for relieving pain, healing wounds, herpes lesions and post-surgical scars. A combination of tamau and Ravensara aromatica essential oil has been used successfully as a treatment for shingles.
I was happy to see coconut oil! However, I'm concerned that it may be "hydrogenated" for cooking and will not perform as well as the coconut oil 76°F which is generally used in soap.
Here's some info from my files for your consideration:
ZANY’S NOTES ON WHAT TO EXPECT FROM VARIOUS OILS IN LS (Collected from a variety of sources.)
It isn't a problem if your oils cause clouding. Some people LIKE the "creamier" look of LS. The problem is that if you are not experienced, you won't know if the clouding is from the formula or from it not saponifying properly. HTH Sharon
COCONUT - Coconut Oil is the mainstay of liquid soap for clarity, great lather, excellent cleansing, and is not drying at all when combined with at least 20% liquid oil. Use more than you do in hard bar formulas, 30% - 80%. For a high foaming mild LS, use 50/50 Coconut/liquid oil(s) of choice. 100% Coconut Oil LS is great for laundry soap and other cleaning products; process at 0% superfat; Dilution Rate: 40% soap to 60% dilution water. Coconut Oil LS works well in hard or salt water but is not recommended for dry skin.
TALLOW/LARD/PALM make good cleansing, very mild soap with lasting thick bubbles, but the palmitic and stearic acids they contain produce opaque soap. Lard adds pearlescence to liquid soap. TIP: Make up a small batch of 100% tallow and add a small % to Liquid Soap for body and to help prevent thinning of gels during the summer months.
TIP: Use LIQUID OILS at higher % for mildness and clarity + 10-20% coconut oil for lather and density.
OILS FOR CLEAR LS: Almond, Apricot Kernel, Canola, Castor, Coconut, Flax Seed (Linseed), Olive, Palm Kernel, Rosin, Safflower, Soybean, Sunflower. (This list is by no means complete, only what I have gleaned so far.)
HYDROGENATED OILS: Keep on the low side -- instead of solid soy use liquid soy; instead of solid palm use liquid red palm (also adds color).
CASTOR OIL: Use 5% (or more) for conditioning and super lather.
AVOCADO OIL contains “unsaponifiables” but creates a clear LS with dense lather once the particles settle out during sequester.
BUTTERS contain “unsaponifiables” and should be kept below 2%. Instead of shea butter, try shea oil.
UNSAPONIFIABLES are a large group of compounds called plant steroids or sterolins. They soften the skin, have superior moisturizing effect on the upper layer of the skin and reduce scars. The sterolins in avocado oil have been found to diminish age spots. Oils with the highest unsaponifiables are shea butter, avocado oil, sesame oil, soybean oil and olive oil.
WAXES, including JOJOBA, should be kept at less than 2% to ensure transparency. The fatty alcohols in waxes do not dissolve and they form a waxy, milky layer that floats at the top of the soap mix.
LANOLIN - VERY low side of your formulations, 1% - 2%
ROSIN at 5%-15% makes incredibly clear amber brown LS with awesome lather. Adds transparency and emollience and acts as a preservative as well. Try with 5% coconut oil and 80% liquid oil(s) of choice for high foaming shampoo. Can be sensitizing.
QUOTE (Failor):
ROSIN saponifies much like an oil but without any resulting glycerin. It gives a smooth cold cream finish to the lather and also acts as a detergent and preservative. To calculate - Rosin has the same SAP value as Wheat Germ Oil. (NOTE: May cause contact dermatitis in sensitive individuals)
Lard vs Duck Fat; Pine Tar; Jojoba
Now, let's take a look at your original recipe using Duck Fat, Pine Tar and Jojoba. One at a time, I put each one into SoapCalc at 100% to see Fatty Acid content.
This pic shows Lard (
One) vs. Duck Fat (
All). As Susie suggested earlier, Duck Fat maybe a reasonable sub for Lard, so that's a keeper:
Jojoba is a keeper as well, used at 1-2% because that's a sufficient amount to feel the "conditioning" benefit and any more than that may participate out and create a waxy surface on the finished LS (just a guess; not sure):
Pine Tar deserves further investigation, although it has zero fatty acid content and, therefore no SAP value, and functions as an additive in soap -- both hard bars and liquid soap. I may have a recipe in my files for adding pine tar to LS. Not sure.