To get rid of the ugly yellowish color on your hair you need to use anti-yellow shampoo.
The anti-yellow shampoo is a product capable of neutralizing the typical yellow pigment or any golden reflections that tend to make the hair dull, opaque and unnatural looking.
Dyes, smog, dehydration and excessive exposure to UV rays are among the main factors that cause the foliage to turn yellow.
When the natural color of the hair is changed by oxidation, for example, the hair loses its colored part and gradually takes on the natural yellowish nuance of keratin, the protein that makes up 90% of our hair.
To solve the problem of yellow tones, the only way is to constantly use an anti-yellow, purple or silver shampoo. Apply the product 1 or 2 times a week on wet hair, massaging the entire length and leave it on for about 5-10 minutes before rinsing thoroughly.
Anti-yellow shampoo works according to color theory, or colorimetry. Violet, in fact, being the complementary color to yellow, is able to neutralize the yellow reflections of the hair through the violet pigments and to extinguish the yellowish effect.
Its constant application will make the yellow tone of the hair colder, tending to platinum or silver.
Its use is recommended for those with blond, ash blond, platinum, red, white, gray, light or medium brown hair. The results are really effective on light, medium or white hair, both natural and treated, while the effect will be zero on dark-toned hair.