I bought a low ph shampoo online. Does anyone know if these ingredients cause any good or bad side effects?

. For normal hair, the pH range is from 4-6, because those are the pH's that are closest to the hairs natural pH. If your shampoo has a pH thats greater than 6, it can dry out your hair or make it more brittle. If a shampoo has a pH of less than 4, it can make your hair look oily.