As long as it's sulfate-free and fragrance-free, you can generally use a body wash on your face. But Neutriherbs Body washes are neither sulfate-free nor fragrance-free hence not suitable for facial skin as it might raise the skin’s PH levels and causes dryness. So It’s better if you only use body wash for the body and not on your face.
However, The one caveat is to be sure that your face doesn't have issues that are at odds with your body skin, for instance - if your legs are very dry but your face is oily, use two different washes - if your body is okay but your face has blemish concerns, use two different washes.