Review on Litmus Strips Universal Application Testing by Doug Hook

I ordered these for skin care! Many people don't realize that skin has a neutral pH of 7, in fact it is slightly acidic to prevent bacterial growth! The skin has a pleasant pH value of 5.5. This means that when we use "neutral" detergents and other products, we raise the pH too much. This can lead to additional water loss (through a process called TEWL), but more importantly, it creates an environment where bacteria (aka pimples) thrive. actually exfoliate. For example, BHA (salicylic acid) needs to be below pH 4 to really fight acne. The vast majority of skincare products actually have too high a pH so I like to use this to ensure all my skincare products are high quality and the best I can use. , but I have found them to be effective and consistent with the indications for the products I read online.