Hair serum is a liquid-based treatment usually formulated using silicones that provide a protective layer to the hair cuticle helping in smoothing frizz. This smooth layer then reflects light which is how serum gives your hair a shiny non- greasy look and feel.Frequent exposure to heat styling tools for hair styling can damage hair cuticle causing it to crack bend and lift. As a result Hair become dull lifeless and frizzyTrichup Hair Serum Thermal Protection provides an effective defense against the intense heat generated with heat styling equipment by forming a protective layer on Hair cuticle. That makes hair less susceptible to breakage and damage. Trichup Hair serum helps make hair smooth and manageable.