Hair dyes can cause serious allergy reactions, for this reason we recommend to strictly follow the instructions. As reported on the package, do a sensitivity test 48 hours before every 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”.
All products in the BioKap Nutricolor range are “Nickel Tested” as shown on each pack.
The finished products of all production batches are subjected to analysis, which has always shown a maximum amount of nickel far below the safe limit of 1 ppm 0.0001%), below which clinical trials have never shown an allergic reaction to this mineral. In any case, it is necessary to perform a patch test 48 hours before using the product.
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 on already dyed hair. If you need to just touch up your roots, choose a colour that is similar to the one you already have. If instead you want to change your present look , choose a darker colour than the one you already have. If you have a high percentage of white hair, 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 to wait at least 4/5 weeks between one application and the next one.
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, because 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 strand behind your neck to see the colouring result. We do not recommend the application of BioKap Nutricolor Delicato + Hair Dye.
If the chosen colour is one or two shades darker than your natural colour, you can lighten your hair using BioKap Nutricolor Delicate Lightening Cream. If the chosen colour is one or two shades darker, you can apply a darker shade of dye.Before doing any of this, it is advisable to wait 4-5 weeks from the first dye. If the chosen colour is much lighter or much darker, it is advisable to contact your hairdresser.
The Lightening Cream should be applied in the same way as the BioKap Nutricolor Dye, with some small changes:
Some guidelines: if your natural colour is
For correct application, the development time is a total of 35 minutes. It is recommended to apply the dye on any regrowth, leaving it on for approximately 20 minutes, and then distribute it along the length of the hair, leaving it on for another 15 minutes.
It is usually best to wait 5-6 weeks before repeating the application, but times may vary depending on the speed of hair growth.
If you do not find among Nutricolor e Nutricolor Delicato the color that better suits you, it is possible to mix the differnt colos among them.
Please note that the new 4 BioKap Nutricolor Delicato + colors, on the other hand, MUST NOT BE mixed neither among them nor with any other color.
We remind you that any residual of hair dye that has been already mixed and is ready for use cannot be stored and used later. It is nevertheless essential to perform the patch test 48 hours before each application. This must be done, even if you have already used a colouring product from this or another brand, because individual sensitivity to the dyes may change over time. A preliminary test should be carried out to check the final colour. Proceed by mixing varying amounts, depending on the result to be obtained, from the chosen colour tubes in the same bottle of Nutrifix Colour Developer.
The dye will disappear after a few washes. To prevent stains, however, you can apply the protective cream supplied in the pack, or another oily cream, around the edge of the scalp.
In this case, rinse immediately for a prolonged period with plenty of water.
The product must NOT be used to dye eyelashes, eyebrows, beards and moustaches. It has been formulated specifically for hair colouring.
BioKap dyes provide coverage of grey hair from the first application. For best results we recommend the following:
Hair colouring products must not be used if the user:
In addition, these products are not intended to be used on persons under the age of 16.
Mix a small amount of BioKap Nutricolor Colouring Cream with an equal amount of Nutrifix Colour Developer lotion. As a container you can use a lid, a paper cup or a coffee cup.
Using a cotton bud, apply a small amount of the product behind the ear or in the crook of the elbow, enough to cover an area equal in size to about 1 cm square.
Repeat this two or three times, letting it dry in between. Close the colouring cream tube and the Nutrifix lotion bottle carefully, then wait 48 hours without washing, covering or touching the area.
If itching, redness or other skin abnormalities occur during this period, do not use the product and consult a dermatologist before using any other colouring product.
The patch test is a sensible precaution that can reduce, but not eliminate, the risk of an allergic reaction, even in the event of a negative result. If, after this period, no itching, redness or swelling is evident, apply the BioKap Nutricolor Dye product.
Not without performing the patch test. Each dye is different and because there may be allergies to even the most innocuous products such as certain foods (nuts, tomatoes etc.), it is essential to perform the patch test 48 hours before each application. This must be done, even if you have already used a colouring product from this or another brand, because individual sensitivity to the dyes may change over time.
Regarding the use of our hair dyes during pregnancy, we recommend following the advice of your gynaecologist.
In fact, although the ingredients are selected to ensure high skin tolerance, we must consider that during pregnancy, skin is more sensitive, therefore there is an increased risk of sensitization or allergy, even in women who have never experienced this type of problem.
For this reason, we do not recommend using any hair dye in the first three months of pregnancy and, for the other months, we suggest you consult your gynaecologist:some recommend the use of natural dyes from the 4th month onwards, while others only after pregnancy and breastfeeding.