How to test pH of skin?
May 11, 2012 5:21 PM Subscribe
How would one test the pH of skin? And other questions related to the pH of skin, shampoo, and conditioner.
posted by HotToddy to Science & Nature (9 answers total) 2 users marked this as a favorite
One of my dogs is having skin issues that I think are related to shampoo/conditioner. I've repeatedly read that skin pH varies by breed, so my thought is to try to learn what his natural pH level is and then find a very simple, unscented shampoo & conditioner and adjust its pH to match his. But first I want to test the pH of his skin. I know someone with a pH meter at the university so will have no trouble testing the shampoo/conditioner; it's the skin part I don't understand. Also, I'm just plain interested in tinkering around with this. I'd love to test various commercial dog shampoos and see if they're really any different from human shampoo.
On a related note, can anyone explain to me why the pH level of shampoo should matter if you are thoroughly rinsing afterward? Conditioner is designed to leave residue so I can see why it would matter there . . . although I have read that only water-based substances have a pH, and not oils, and wouldn't it only be the oils/other nonaqueous crap left once the hair dries?
Obviously I have no science background, but I'm very interested in learning about this, so feel free to tell me just as much as you can. Thanks!