TRESemmé Collagen+ Fullness conditioner gives you visibly thicker and fuller hair in just one use. The system is infused with collagen and has been created with glycerine to penetrate inside the hair - it plumps each strand and instantly help hair look thicker. Get visibly thicker hair so you can work the best looks - you want a braid, a twist or a bun, then you also want texture and looks that last, you want visibly thicker, fuller hair everyday.