Hi Veepee! 😊
The product removes artificial color pigments from the lengths and does not lighten your own root hair, so about 3 cm of root growth remains natural. You can apply the product only to previously colored areas and avoid the roots and scalp, do a strand test and rinse very well, and note that the product is not suitable for henna-treated or afro-textured hair. You can color immediately after use, but it is often good to give the hair and scalp 1–3 days of rest and focus on care, as the hair may feel more porous for a while 💛