Adjusting pH with Sodium Hydroxide

[SideDoorSoaps]

I was reading some ingredients on a baby's lotion label and saw sodium hydroxide and citric acid listed. I know that both adjust pH but can someone explain to me how? Does the sodium hydroxide saponify the oils in the lotion? I tested my lotion and the pH is 5. So in my mind, if I were to use a sodium hydroxide or citric acid, I could make it more pH balanced? Not that I'm going to do that! Just curious to know if any science minded people out there can explain. Thanks!

 

[soapbuddy]

Depending on the ingredients used, lye or citric acid is used to lower the pH of the lotion. You would need a pH meter in order to do this. Did you know that lye is used in toothpaste, pretzels and pickles?

 

[SideDoorSoaps]

Yeah, i knew about sodium hydroxide used in food processing and other toiletries. Just found it interesting in baby lotion. I love to read ingredient lists.

 

[soapbuddy]

Depending on the ingredients used, lye or citric acid is used to lower the pH of the lotion. You would need a pH meter in order to do this. Did you know that lye is used in toothpaste, pretzels and pickles?

Olives too!

Correct.