Sebastian Thickery Foam - 200ml Thickefy Foam by Sebastian is a weightless foam that adds thickness and body to your hair without the heavy residues of other styling products. Made for normal to thin hair, the Thickefy serum increases the size of each hair strand, making your hair appear bigger and fuller. The built-in lift activates to give your hair body without the hard sticky residue of hairsprays and other styling products. Use Just apply Thickefy Foam from your roots down and then air or blow dry for weightless body. Then apply to your dry hair for additional hold, texture, and style!