The COSRX Low-pH Good Morning Cleanser is my favorite cleanser right now! It’s a very popular cleanser with lots of good reviews. If you google it, you’ll see lots reviews from other bloggers as well. I’ve read varying pH values with some people finding a value of 5.0 and others finding a value of 5.5, and and others a value of ~5.0-6.0. So know that what I found is based upon using these pH strips.