I know girls have used this stuff for ages but ther's also salt spays aimed at men on the market too. In case you didn't know it's a styling product that gives you voluminous, wavy "beach hair". While it's not marketed specifically as a hair thickening product it definitely makes your hair look much thicker while at the same time giving it volume and texture. I personally love this stuff. As a guy who has both thinning and frizzy hair this sorts all my problems out at once without the stiffness of gel or clay. The only slight drawback is if you use it too much it can leve your hair quite dry (it is "salt" spray after all). I would definitely recommend this as a good styling product for people with medium to long thinning hair.