Sunsilk Silky Smooth Hair Serum is a lightweight leave-in serum formulated for dry, rough and frizz-prone hair that needs instant smoothness, softness and improved manageability without the heavy feel of traditional hair oils. The formula is supercharged with 4% Amino-Silk Complex and enriched with Silk Protein, which conditions the hair fibre and supports stronger, smoother-feeling strands. The lightweight serum works through the hair to tame frizz and flyaways while enhancing softness and maintaining natural movement without leaving a greasy or sticky residue. Its silk-inspired conditioning technology smooths the hair surface and improves manageability, making dull or unruly strands easier to style and giving them a sleek, polished appearance. Sunsilk states that the formula provides up to 100 hours of silky, smooth hair while delivering instant frizz control, making it suitable for everyday use whenever hair needs additional smoothing and finishing care.