Showcaser is an aerosol mousse-wax hybrid from Goldwell's StyleSign Creative Texture line, built to combine a lightweight foam texture with the hold and definition of a wax. It's rated a strong hold (Hold Factor 3 in Goldwell's system) and is designed for short-to-long hair with normal-to-coarse texture and straight-to-wavy patterns, giving textured, piece-y definition with a radiant rather than matte finish.
The formula uses Goldwell's FlexPROtec complex, which combines styling polymers for control with a UV-filtering elastomer intended to help guard against color fade and heat damage while styling, along with bamboo-derived proteins meant to keep the hold flexible rather than stiff or crunchy. Because it comes out of the can as foam rather than a solid wax or a fine spray, it's dispensed into the palm, warmed between the hands, then worked through dry hair — it isn't sprayed directly onto the hair the way a hairspray or texturizing spray is.
Stylists looking for a matte finish instead of shine can mix it with Goldwell's Roughman Matte Cream Paste to cut the gloss while keeping the hold level.