Tresemme Collagen Fullness Thickening Balm Thicker/Fuller Hair -125ml - 3 Pack 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. For best results, use with TRESemmé Collagen+ Fullness Shampoo and Conditioner (sold separately) to get the texture you need for a longer-lasting, thicker and fuller look.