On this page you can find some of the most common questions about compositions, tests, allergies and much more.

Hair colours

This varies according to the type of hair, the frequency of the washings and the use of products such as shampoo, masks and specific spray for colored hair.

Categorie: Hair colours

Our hair colors last around 4 weeks.

Categorie: Hair colours

Although we select our ingredients to ensure high skin tolerance, we recommend you to follow the advice of your gynecologist. During pregnancy skin sensitivity is higher and so there is an increased risk of allergy even in women who have never had such problems.
For this reason, we do not recommend the application of any hair colour in the first trimester of pregnancy and, as far as the other months, we advise to ask the opinion of the gynecologist: Some recommend the use of natural colors from the 4th month, others recommend it only after pregnancy or breastfeeding.

Categorie: Hair colours

The NOAH colours guarantee the coverage of white hair from the first application; for better results we recommend the following:
– With less than 50% of white hair, use a shade similar to yours to keep your color;
– With more than 50% of white hair, use a shade with a darker tone to achieve your color.

Categorie: Hair colours

First of all it is necessary to perform the sensitivity test 48 hours before each application. If you have done other colour treatment before, we are not able to ensure the success of the colouring because the final colour could be different to the one desired. Anyway, successive applications, spaced one month apart, will allow you to achieve the desired color. It is better to perform a test on a strand behind your neck to check the outcome of the color.

Categorie: Hair colours

All products of NOAH Color line is “Nickel tested” as reported on each package. It means that the finished product passed the nickel test.
In any case, you can perform a preliminary sensitivity test 48 hours before using the product.

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