In this article you will learn:
Are Detergents Better Than Natural Soap?
What Is Lye?
Lye is a strongly alkaline (basic pH) solution, a white odorless solid that is used for washing or cleansing purposes. The scientific name for the two different kinds of lye is sodium hydroxide or potassium hydroxide. When properly made, there is no free-floating lye left after the soap is made.
Archeologist have found lye soap dated back to 2800 BC in Babylon, when animal fat and ash mixed in water made lye-based soaps. Thousands of years before pure lye by chemical process was available, people made their lye the old-fashioned way by leaching water through wood ashes layered in a barrel or other container. Our forefathers discovered lye by running water through wood ash. By doing this they could extract the lye from the potash.
Scientifically speaking, lye is a metal hydroxide traditionally obtained by leaching wood ashes, a strong alkali which is highly soluble in water producing caustic basic solutions. “Lye” most commonly refers to sodium hydroxide (NaOH), but historically has also been used as an alternative term for potassium hydroxide (KOH).
Today, lye is commercially manufactured using a membrane cell chloralkali process. It is supplied in various forms such as flakes, pellets, microbeads, coarse powder or a solution. Lye has traditionally been used as a major ingredient in soap-making.
Is Lye Natural?
Lye can be found in nature, even without human intervention. Lye is a natural substance since it was originally made from filtering rainwater through hardwood ashes. However, this produces inconsistent purity levels.
For modern purposes, lye is now manufactured in mass-scale production. The 99% purity level of manufactured lye is extremely important for making consistent and safe soap products!
Is Lye Necessary In Soap?
Lye is a necessary component of making soap bars. Without lye or another highly alkaline solution, we cannot ever make soap because soap needs the saponification process – a chemical impossibility without a strong alkali!
Without lye, you only have fats and oils, not soap.
“Soap” is an FDA-protected term that is restricted to only real soap products. According to the FDA, soap is a product in which most of the non-volatile matter consists of an alkali salt of fatty acids and whose cleansing properties are due to these alkali-fatty acid compounds. This definition was written for the purposes of excluding soap from being regulated as a cosmetic.
The History of Lye Soap
Lye soap goes back as early as Babylonian times: when a crude form of soap was discovered through melted animal fats mixed with ashes and water over a cooking fire.
When this crude form of lye soap was found by the Babylonians over 5,000 years ago, they were recorded to begin making soap for washing purposes based on this original discovery. [SOURCE]
Is Lye Soap Dangerous?
If made correctly, lye soap is completely safe as there’s NO LYE left in the final soap after the curing process! A well-made body soap that is cured for several weeks is simply saponified fats and most formulas have excess free-floating fats. We always cure our cold-process lye soaps for 4 or more weeks before it gets into the hands of our customers.
If too much lye is used, only then can lye soap can be dangerous. For the unprofessional, inexperienced, or improperly equipped – the resulting soap can be dangerous only because of ignorance and improper formulation.
Soapmaking is a scientific profession, just like baking or any other important job that has a level of hazardous risk. It often takes a year or more of research and daily experimentation in the world of soap-making to even scratch the surface of the basics.
BUT there is an easy way to test for a lye-heavy soap: is the soap crumbly, super hard, with large white spots? If your tongue touches the soap, does it “zap” your tongue like a small electrical shock? When mixed with a bit of water, does it read higher than a 10 pH on a pH test strip? And finally, is the soap very drying and almost “burns” when you use it? If yes to all of these, then you have a lye-heavy soap that should not be used on the body.
Are Detergents Better Than Lye Soap?
If you like to wash your body with an effective cleanser that foams and lifts dirt away from surfaces, you have 2 choices: lye soap or detergents. “Effective cleansers” have hydrophillic (water-loving) and hydrophobic (water-repelling) sides to their molecules, which helps dirt, oil, and water all wash away from surfaces very well – resulting in an effective cleanse!
But detergents (this includes “naturally-derived” surfactants) are cheaply manufactured unnatural chemicals that mimic the cleansing and nourishing qualities of real soap conveniently… But there is a catch.
Detergents strip the skin and destroy the microbiome of the skin’s acid mantle (even “pH balanced” cleansers).
Soap has an average pH of 9-10, about the same as highly alkaline water or sea water. If you do not want to disrupt the skin’s acid mantle, then technically we shouldn’t even be bathing with pure water.
The good news is that the skin’s acid mantle resets only minutes after using natural soap or washing with water, but the skin can be permanently disrupted or altered with detergents because of the chemical harshness.
Cold-process bar soap is very nourishing and has an almost lotion-like feel compared to using detergents. This is because well-made natural soap bars have tons of free-floating fats that the skin sucks right up – yuuuummy!
If you think your skin could benefit from acidic products after a soap cleanse, then we encourage oily skin types to try our acidic toners and then apply our fatty acid moisturizers afterward. Dry or combination skin types can leave out the toners to not dry out the skin more.
In conclusion, are detergents better than lye soap? Well, your body isn’t a dirty dish or a pile of laundry, so we don’t think you need to treat it as such.
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