I Tested Shampoo pH 4.5 vs 5.5: Which One Is Best for My Hair?
I’ve always been fascinated by the science behind the products we use every day, especially when it comes to something as routine as shampoo. Recently, I started paying closer attention to the pH level of shampoos, and that’s when I came across the term “Shampoo pH 4.5 to 5.5.” It intrigued me because it hinted…