Redken Volume Injection Shampoo & Conditioner Set Brand new set purchased directly from the Redken site for authenticity. Please see the receipt. These are not old bottles that have been sitting around. They are new and unused. Redken's Volume Injection Shampoo gently cleanses the scalp, removing oil to create a lightweight feel while enhancing volume. Creates a shiny, polished finish on hair. The Conditioner is weightless while creating lift and body to the hair from root to end. Both have filloxane, a bodifying agent that adds thickness to hair. Unlike other thicker formulations that weigh down and create oilier hair. Both bottles are larger 500 ml / 16.9 fl oz. size