Is it safe to use sodium hydroxide in body lotions?

I was stunned when I noticed sodium hydroxide in a body lotion that I use, but was relieved to an find that the product is safe.

According to Milton B at Yahoo answers : "You will also notice that it contains hydrochloric acid. The sodium hydroxide/hydrochloric acid are used to adjust the pH of the the final product to a slightly acid level that is compatible with normal skin pH."