What is the role of protective products (bond builders) in color services and when should they be used?

• A. Bond builders are a styling foam for shine.
• B. Bond builders strengthen hair during chemical processing; use in color services on compromised or porous hair for integrity.
• C. They remove color pigments.
• D. They replace conditioner.

Answer: (B)

Bond builders in color services provide protection from the inside out by stabilizing the hair’s bonds that are stressed during chemical processing. When color, especially bleach or strong tone changes, opens the hair cuticle and reshapes the cortex, some bonds can break. Bond builders help rebuild or reinforce those bonds, which strengthens the hair, reduces breakage, and helps moisture stay in place. This support leads to more even color uptake and better overall hair integrity after processing.

Use them when the hair is compromised or highly porous, such as previously chemically treated hair or strands that show signs of damage. They’re beneficial during color services because they protect the structure while the chemicals work, and they can be incorporated into the color service or applied as a bond-building treatment during or after processing to maintain strength. They are not a styling foam for shine, they don’t remove pigment, and they don’t replace conditioner; instead they work alongside conditioning to preserve the hair’s structure through chemical processing.