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This describes a method for permanently coloring materials like hair using a three-part system. First, a pretreatment component is applied, then two distinct silicone polymers, which may contain pigments, are added. These specific silicone polymers are designed to chemically react and link together on the material, forming a durable, colored coating that minimally alters the substrate.
Why it matters: Since 2019, advancements in silicone polymer synthesis and formulation science may have made the precise control of reactive organosiloxane units more feasible, potentially improving the durability and substrate compatibility of such a permanent coloring system. The market continues to seek long-lasting hair color that causes minimal damage.
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