Is this mask meant to replace my regular shampoo? — NK hair mask Tar 300 ml

This product is a mask, not a shampoo. Its purpose is to stay on the scalp and hair for several minutes so the active ingredient has time to work, whereas a shampoo is rinsed off almost immediately. You should continue using your usual shampoo as the main cleansing step.

The traditional routine the product fits into uses a tar mask once or twice a week and a neutral shampoo on the other wash days. That rhythm is also why the 300 ml jar can last for a long course of use. If you prefer, you can use the mask before shampooing: massage it into damp scalp, leave it for the time indicated on the jar, and then wash with shampoo. Or you can shampoo first and then apply the mask briefly, depending on how your hair feels. The key point is to rinse the mask out thoroughly afterwards.

People usually choose this mask when they want a deeper cleansing effect than a regular shampoo alone gives — for example, when the scalp feels oily, flaky, or heavy at the roots. It helps soften flakes so they rinse out more easily and can leave the roots feeling lighter.

Keep in mind that tar products are active: start with a shorter leave-on time and only extend it if your skin responds well.