Q&A Quickie: Why use sodium hydroxide instead of triethanolamine to increase pH?

In the October Q&A, Charlette asked, Sometimes I’ll see sodium hydroxide at the end of an ingredient list for skin products and I wonder why would this be used? Wouldn’t it be much easier to use TEA (triethanolamine) to increase pH rather than lye (which is usually bought in huge batches when all I’d be using...

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