The Christophe Robin Fortifying Root-To-Tip Duo is designed to support the scalp, while smoothing and maintaining hair from root to tip. Set Contents: Christophe Robin Fortifying Scalp Serum 50ml A lightweight, fast-absorbing serum with amaranth peptides and hyaluronic acid to help the scalp feel hydrated while supporting strands that appear stronger and fuller. Christophe Robin Detangling Hairbrush A handmade boar-bristle brush that gently detangles and smooths hair, reducing friction and the appernace of flyaways, while promoting a refreshed scalp and soft, manageable strands.