Pantene uncovered that oxidative coloring changes hair at the structural level. Internally, the chemistry in hair color attacks strength-giving proteins in hair and makes the fiber more porous, leading to weaker hair that fades more quickly. The surface of the hair fibers becomes uneven and the protective layer of the hair fiber disintegrates. Without the protective layer, the hair fiber is prone to micro-scarring and damage, which changes the way it interacts with light and leads to a dull appearance. Pantene’s unique color-enhancing shampoo for blonde hair contains the highest concentration of liquid crystals and fights dulling deposits. These crystals help create a new water-repelling layer on the hair shaft, helping to return the chemically modified structure similar to its pre-colored state and allowing hair to catch conditioning ingredients. Blonde hair color is refreshed and infused with radiant shine.