How often can I dye my hair with a natural product (such as Korres) without harming my hair?

Natural hair products tend to be darker in colour and are therefore generally more conditioning for your hair. Monitor how your hair reacts to the colour treatments and use this as your pedometer in regards to how often you colour it. The condition of your locks should be your guide in addition to getting professional advice when visiting your colour technician. Dark hair colours are naturally less aggressive on your tresses so these can be used quite regularly as they help to maintain hair shine and moisture without harming your hair.