How often can I use burdock oil on my hair? — BURCH OIL EVALAR 100ML (repejnik) (репейник)

The product description does not specify a frequency, because the right schedule depends on your hair type, season and current condition. A reasonable starting point is once a week, used as a pre-wash treatment, and then adjust based on how the hair and scalp feel after several washes.

Signals to look for and how to adapt:

• If the ends feel dry or straw-like after heat styling, a weekly oiling can be a useful supplement to your usual washing routine.
• If the scalp feels tight after washing, you may want to use the oil a little more often, but keep the amount small and focus on the scalp with a gentle massage.
• If fine hair gets heavy quickly, once every one to two weeks is often enough, with most of the oil kept on the lengths rather than the roots.
• Thick, curly or porous hair may benefit from a fuller pre-shampoo oiling once a week, or more often during dry weather.

The oil itself is not a replacement for shampoo and conditioner. It fits into your regular wash day: apply it before shampooing, leave it for whatever time works for you, then wash and continue with your usual steps. The product description presents it as an occasional nourishing mask that does not require a complicated multi-step regimen.

As with any botanical cosmetic, do a patch test if you are sensitive to Asteraceae plants, and stop using the oil if the scalp becomes irritated or itchy.