At Honeybee Organic Soap, we are of the opinion that today's consumers are well-informed, and that the best strategy is to educate them. Furthermore, as an Organic business, we must list every component on our product labels.
What exactly is Sodium Hydroxide?
The saponification process, which is at the very core of soap-making, requires sodium hydroxide, generally known as lye.
True soap cannot be made without lye. Always keep in mind if there is no lye, there will be no soap!
Hardwood ashes, a barrel or ash hopper, and rainfall were used to make traditional lye. Tragically, there was no way to tell if the lye water was adequate in strength because there was no established standard dilution. As a result, Auntie's traditional "lye soap" was frequently lye-heavy and had a bad rap for being harsh and irritant to the skin.
If you're a scientific formulating freak like me, here's a very simplified chemical description of how sodium hydroxide is generated nowadays.
Sodium hydroxide (NaOH), which is composed of sodium ions (Na) and hydroxide ions (OH), is produced from salt water.
We have two elements that exist in salt water: salt/sodium chloride (NaCl) and water (HOH). Using a current of electricity conducted through the salt water, the water is divided into hydrogen gas (H) and hydroxide ions (OH-), while the salt is separated into chlorine (Cl) gas and sodium (Na+) ions.
The positively charged sodium ions (Na+) are now able to combine with the negatively charged hydroxide (OH-) ions to yield NaOH. Presto! You formed sodium hydroxide from plain salt water.
Saponification: Soapmaking's Chemical Reaction (The Nurse in me couldn't resist this easy explication)