How should I use this mask, and how often? — NK hair mask Tar 300 ml

Use the mask on damp scalp and hair. Massage it into the scalp, then spread it through the length of the hair. Leave it on for several minutes — follow the exact time given on the jar rather than guessing. Then rinse thoroughly.

Because birch tar is an active natural ingredient, it is wise to start with a shorter exposure time the first few times. See how your scalp feels before leaving it on longer. If any burning, redness, or irritation appears, rinse the mask off immediately and stop using it. Avoid contact with the eyes; if the product gets into them, rinse with clean water.

For frequency, this type of tar mask is typically used once or twice a week rather than with every wash. It is not designed to replace your regular shampoo — it is a mask to use as part of a simple haircare routine. Many people pair it with a neutral shampoo and use the tar mask before or after washing, depending on their usual habit. The characteristic tar smell fades as the hair dries, so a strong smoky scent in the jar does not mean it will stay in the hair all day.

The 300 ml jar is described as enough for a long course of use, thanks to the once- or twice-weekly application rhythm.