How does the prokeratin ingredient work on the hair structure?

Hair is largely composed of keratin proteins, and this shampoo utilizes prokeratin to enhance the hair's surface properties. It does not rebuild the hair structure from within or penetrate deeply into the cortex. Instead, it works by depositing a light film on the outer cuticle. This coating helps to reduce the feeling of roughness and improves slip during washing, making it easier to detangle. By smoothing the cuticle, the hair becomes less likely to snag against neighboring strands, which can make lengths appear more even, elastic, and manageable. This mechanism is particularly beneficial for hair that is often heat-styled, colored, or naturally porous, as these types of hair tend to lose smoothness faster. The effect is cosmetic, aiming to provide shine, softness, and a neater appearance rather than volumizing the roots or treating internal damage.