Hairsprays are created using a mixture of differing types of polymers, allowing the formulation to be either a lightweight, medium, or optimum hold. Hairsprays are formulated with alcohol that soaks up the natural oils your scalp generates. That results in greasy, brittle hair that's issue to breakage, Valcin points out. https://allhealthmarket.com/product/health-and-beauty-2/hair-care/toppik-hair-thickening-fibers-keratin-spray-hair-building-fiber-poudre-27-5g-instant-regrowth-powders-better-hair-loss-concealer/