Fillers are used to

Fillers are used to

• A. Replace missing primary color
• B. Balance porosity
• C. Seal the cuticle
• D. Increase shine

Answer: (A)

Fillers are used to replace missing primary color in the cortex after lightening, creating a uniform foundation for the next color application. When hair is lifted, some pigments are stripped away and the porosity can become uneven, so a filler deposits controlled amounts of pigment to balance the underlying color and fill in gaps. This gives the final shade something consistent to grab onto, helping the color deposit evenly and read true to tone. Balancing porosity is a helpful effect because a more uniform porosity allows even color uptake, but the main purpose of a filler is to replace the missing primary colors to rebuild a balanced base. Sealing the cuticle and increasing shine are achieved by separate products and finishing steps, not by fillers.

Fillers are used to replace missing primary color in the cortex after lightening, creating a uniform foundation for the next color application. When hair is lifted, some pigments are stripped away and the porosity can become uneven, so a filler deposits controlled amounts of pigment to balance the underlying color and fill in gaps. This gives the final shade something consistent to grab onto, helping the color deposit evenly and read true to tone.

Balancing porosity is a helpful effect because a more uniform porosity allows even color uptake, but the main purpose of a filler is to replace the missing primary colors to rebuild a balanced base. Sealing the cuticle and increasing shine are achieved by separate products and finishing steps, not by fillers.