Hair loss is a common and complicated condition that can be attributed to various reasons. Most hair loss experts say that it usually comes down to genetics. It is best to consult with a medical professional to determine the root cause of hair loss and treatments to prevent and address hair loss. DefenAge's 150K Hair Follicle Serum provides an easy-to-use and effective option to help your hair follicles work their best. We've taken the proven science of defensins and applied it to scalp health. Not only are our customers experiencing improvement in visible hair density, but are also noticing less hair shedding, thicker strands of hair, and even repigmentation of hair back to it's original youthful color.