Nioxin 3D Styling Pro Thick Niospray Strong Hold is an extra hold finishing spray providing manageable body and hold. Designed for use on medium to coarse hair, it is the perfect product for longer-lasting styles. Formulated with Nioxin’s ProThick technology, the spray benefits from a complex of thickening polymers that coat each hair, giving a fuller appearance. Bonds formed between hairs create space allowing for a denser style.Nioxin is the N°1 Salon Brand for thicker and fuller hair with more than 30 years expertise in thinning hair.