Wavebuilder Wave Serum Side Lift Curl Activating. Wavebuilder Wave Serums are concentrated nutrient rich liquid formulas formulated to deliver very specific wave related results. Side Lift Curl Activating Formula makes it easier to develop waves in hard to wave areas and on the sides of your wave pattern. Wavebuilder Side Lift Serum contains deep moisturizing conditioners and curl calming nutrients that make hair more wave compliant and make brushing more effective. Non-greasy. Buildup free and never sticky with tons of added shine. This high quality, safe, effective WAVEBUILDER product is made by us with only the best available ingredients.