No, Green Code is not a permanent dye. It is a colored cream without ammonia.
Color creams are the best option if you are looking for a non-radical change with a natural appearance that offers you duration without mistreating your hair since, because they do not contain ammonia, they act with less force on the opening of the hair cuticle, so the elimination of the hair natural tone is affected to a lesser extent, causes less frizz and less attack on the natural shine of the hair.
Points to consider for this type of product:
They are very gentle and the formula does not contain ammonia. Its duration is approximately of 28 washes.
It is compatible with any chemical hair product or procedure.
Gives shine and does not dry out the hair.
Covers approximately up to 70% of gray hair with a very natural finish.
If the result is not satisfactory, the product can be reapplied.