So I thought I would address the what and why of pH.
First of all you want your pH level in soap to be below 10. Normal pH is between 7~10, with 7 being neutral. I make my soap with Lye, and the pH of lye is 14, one good reason curing time is so critical.
Goat Milk soap contains caprylic acid which helps bring your pH close to human skin which is between 4.5 ~ 7 .
To ease your mind, I have my soaps "CURE" for a few weeks and check them with pH strips to verify they are in the "SAFE" zone.
Properly made LYE soap is not harsh, but very gentle and is a mildly cleansing product.
In a properly formulated soap recipe you can "superfat" it ,, meaning you add a small percentage of extra oils to insure that there are additional oils for the lye to react as well as extra oils to moisturize and pamper your skin
All soap is made with lye, Simply put NO LYE = NO SOAP
If you run across products that claim to be cleansers , and are not made with lye, they were "made" synthetically in a lab with chemicals and other agents.
The pH scale is used to describe the acidity and alkalinity.
SO this was a 101 on Lye and the pH scale ..
I hope this answered your basic questions on the subject of pH balance of soap and your skin.
Thanks for the questions and keep them coming !!
Till next week !!