Stearic acid helps to harden the soap and improve its lathering properties.

TL;DR

Stearic acid helps to harden the soap and improve its lathering properties. 40 to 50% fat level is optimal for a good soap. Good lubrication and skin protection can be provided by a high percentage of fat.

What Does Stearic Acid Do In Shaving Soap?

The stable lather, slickness, and whisker softening qualities are needed in a shaving soap. These qualities can be achieved by sphaonifying fats with potassium and sodium hydroxide. When mixed with fats/oils, a chemical reaction called saponification takes place. [0]

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Does Stearic Acid Make Soap Harder?

The stearic acid in soap creates a harder bar of soap with a creamy lather. You can increase the stearic acid content by using certain oils, fats, and butters. [1]

What Makes Good Shaving Soap?

The triple milled hard soaps cost a little more, but they are usually the best shave soaps. 40 to 50% fat level is optimal for a good soap. Good lubrication and skin protection can be provided by a high percentage of fat. [2]

What Is Shaving Soap Made Of?

Shaving soap has a high stearic fat/oil acid content and is more stable than regular soap. The stable lather, slickness, and softer qualities of a shave soap are created by stearic acid. [3]

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What Is The Purpose Of Stearic Acid In Soap?

Stearic acid is an emulsifier, emollient, and lubricant that can help to keep products from separating. Stearic acid is used in hundreds of personal care products. [4]

Does Stearic Acid Harden Soap?

Stearic acid helps to create a rich lather in candles and soap bars. It is ideal for use in shaving foams. It helps the skin remain hydrated by preventing or slowing hydration loss from the skin’s surface. [5]

Can I Use Stearic Acid To Make Soap?

If you want to create an extra firm bar of soap, you can use stearic acid. It’s used as a thickening agent. It’s a vegetable derived waxy substance that can be used in cold process soap. [7]

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Is Shaving Soap Different To Normal Soap?

It isn’t going to provide much protection from a blade if you use regular soaps that are very thin and watery. Shaving soaps are designed to give you the protection you need. [9]

Sources:

  1. https://www.westcoastshaving.com/blogs/wet-shaving-and-grooming-blog/how-is-shaving-soap-different-than-regular-soap
  2. https://rusticwise.com/stearic-acid-in-soap/
  3. https://originalshavecompany.com/what-makes-the-best-shave-soap/
  4. https://www.zingariman.com/blogs/zingari-blog/guide-to-shaving-soap-everything-you-need-to-know
  5. https://puracy.com/blogs/ingredients/stearic-acid
  6. https://www.newdirectionsaromatics.com/blog/products/all-about-stearic-acid.html
  7. https://www.soapqueen.com/tag/stearic-acid/
  8. https://www.thepersonalbarber.com/blogs/guides/what-is-shaving-soap-and-how-is-it-different-from-regular-soap

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