What should be avoided when using chemical treatments on hair?

Using chemical treatments on freshly colored hair should be avoided because the hair is already in a vulnerable state due to the previous chemical process. Fresh hair color can compromise the hair's integrity, making it more susceptible to damage from additional chemicals. When hair has been colored recently, the cuticle may still be open or the hair may be weakened, which can lead to excessive dryness, breakage, or an undesired chemical reaction. It is generally recommended to wait a reasonable period after coloring before applying chemical treatments to allow the hair to recover and to maintain its health.

While applying chemical treatments on clean hair, damp hair, or even healthy hair may sometimes be appropriate depending on the specific treatment and hair type, freshly colored hair often requires additional consideration and caution to avoid serious damage.