BioKap Dye Brush & Bowl Set

Hair dyes can cause serious allergy reactions, for this reason we recommend strictly following the instructions. As reported on the packaging, do a sensitivity test 48 hours before each application. If you wish to know how to carry out the test, read the instructions on the internal leaflet carefully and also the FAQ section “Before applying the hair dye – How to do the sensitivity test”.

In case of an allergic reaction during application, as for instance intense itching, skin burning or skin rash, immediately stop using the product and immediately rinse with warm water. In this case, before applying a new dye, consult a Dermatologist.

All products in the BioKap Nutricolor range are “Nickel Tested”, (link to the question above) as shown on each pack. This means that the finished product from each production lot is subjected to analysis for nickel. In any case, it is necessary to carry out a sensitivity test 48 hours before using the product.

Yes, it is possible to apply BioKap Nutricolor hair dyes on already-dyed hair. If you need to just touch up your roots, choose a colour similar to the one you already have.  If instead you want to change your current look, choose a colour darker than your original one.  If the percentage of grey hair is high, apply a colour that is one tone darker than your hair in order to get a perfect coverage. Like all permanent hair dyes, we recommend waiting at least 4/5 weeks between one application and the other.

It is first necessary to perform the patch test 48 hours before each application. The dye can be applied but we cannot guarantee the colour result, as the previous treatment can alter the final colour of the first application compared to the desired one. Subsequent applications, one month apart, can help obtain the desired colour. We nevertheless recommend choosing shades that do not have red hues and testing a lock behind your neck to see the final result. We do not recommend the application of BioKap Nutricolor Delicato+ Hair Dyes.