Get the look and feel of thicker, fuller hair with ULTRAfiller+ Hair Density Scalp Serum for Fine Hair. Powered by biotin, peptides and caffeine, this hair serum revitalizes your scalp to promote healthier roots and create the optimal environment for more fullness. How does it work? Our ULTRAfiller+ technology strengthens your hair by promoting the overall health of your scalp. This hair serum fortifies, reducing hair loss and shedding due to breakage. Is it thick or greasy? No. This scalp serum is the perfect lightweight, non-greasy solution for fine, thin hair. It melts in without weighing your hair down. The wearability is fine, thin hair approved! Plus, you can feel good about our ingredients, which are safe for the environment and safe for you. Our scalp treatment is cruelty free, paraben free, phthalate free, dye free, free from animal-derived ingredients and vegan friendly. Together, all three products complement each other for the best results. Step one is to cleanse with our thickening shampoo that visually plumps in only one use. Step two is to strengthen as you condition, helping to align the hair, creating thickness with our ULTRAfiller+ conditioner. Step three is this scalp serum, to promote the optimal environment for thicker, fuller hair. It’s safe for daily use on wet or dry hair. Last, thicken with our thickening spray, which plumps your overall thickness and provides heat protection for fragile hair. Give fine, flat hair a thickening boost with this scalp treatment.