Say goodbye to frizz and hello to glass hair vibes 💁‍♀️✨ Here’s how I use this heat-activated serum to get sleek, shiny, straight hair—without feeling greasy or heavy. ✔️ Heat-activated = better with your flat iron ✔️ Fights frizz + adds shine ✔️ Lightweight but effective ✔️ Drugstore price, salon finish garnier sleek & shine serum, heat activated hair serum, frizz control serum, how to get shiny straight hair, drugstore hair serum, sleek hair tutorial, hair straightening routine, shiny hair tips, how to use hair serum with heat tools, glass hair look, anti-frizz heat protectant, garnier hair routine, blowout at home, hair serum demo LTKBeauty LTKOver40 LTKWatchNow