FILLER PLEX Bond Rebuilder & Bond Developer Helps create bridges inside the hair during lightening and coloring services. Mixes with rinse or color, allowing for optimal volume and penetration of color molecules. Helps rebuild the internal bridges of the hair to achieve stronger hair. New and revolutionary “FILLER PLEX” is upgrade service for hair coloring, This simple three step process includes active ingredients that works on a molecular level to seek out broken bonds in the hair that are caused by chemical, thermal and mechanical damage. You can use “FILLER PLEX” to restore compromised hair, or add it to another service to provide the ultimate breakage control. FILLER PLEX is free of silicone, sulfates, phthalates, DEA, aldehydes, and is never tested on animals.