Is a hair density serum that tones & stimulates follicles, promoting hair thickness and healthy appearance. The advanced formulation with Biotinoyl Tripeptide facilitates hair bulb keratinocyte proliferation and works for fuller, denser and stronger hair. With the Keratrix?complex rich in biofunctional Oligopeptides with sustained action on hair fibers, this serum improves the overall condition of hair and scalp. The light silicone-free formula absorbs into the scalp without leaving a greasy sensation. This product targets thinning, dull, volume-less hair, and is beneficial for all hair types.