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Soap ingredients

Posted by PeterH770 (My Page) on
Thu, Jul 7, 05 at 16:13

I'm looking at the ingredients for my favorite "boutique" soap makers, and I am wondering about some of the items:

Propylene Glycol: I understand this makes soap soft and has some moisturizing properties, but when would this be added to the soap? It is listed first in many of their products.

Sodium Stearate: I have found on the web that this is made from tallow, but the maker lists the soap a "vegan". At, it says something about "palmetic", so is this made from palm oil?

Sodium Palm Kernelate: self-explanitory

Sodium Lauryl Sulfate: is this made from coconut oil?

Tetrasodium Editronate: listed last on most of their soaps. What is it and why is it in there?

Lastly, when working with a number of fats and oils, like mixing palm oil, palm kernel oil and coconut oil (as above), how do you come up with the amount of lye to use?

I am researching this and will probably try my hand at soapmaking soon. Thanks for your help!

Follow-Up Postings:

RE: Soap ingredients

Apparently they misspelled tetrasodium ETIDRONATE...

Here is a link that might be useful: Tetrasodium Etidronate

RE: Soap ingredients

I make melt and pour soap and rebatched soap, so I can't be of much help. I can tell you that most of the people that I know that make CP/HP soap use this Lye Calculator (link provided) to determine the amounts of oils, lye, etc., they need for a batch of soap. Perhaps you will find it useful.

Here is a link that might be useful: Lye Calculator

RE: Soap ingredients

I make soaps too, I have done much research and have found that Sodium Lauryl Sulphate or Sodium Laureth Sulphate or SLS is a cheap foaming agent. The same is used in garage floor degreasers. It's in your shampoo, your toothpaste, baby products called Sodium Trideceth Sulphate (same thing) You're not even supposed to use it on children under the age of six. It causes hair loss, and dermatologists use it to induce dermatitis in test subjects so they can treat it. Read here, this is a link to a major article on the whole subject.

Here is a link that might be useful: Peter Dunn .org

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