* Dual Action System * Potent Growth Serum * Alcohol-free serum suitable for all skin types * Ergonomic Roller Design * Convenient and Hygienic Elevate your hair regrowth journey with our Hair Hero Duo, the synergistic combination of the STAY BOLD Scalp Stimulator Dermal Roller and our Lock'N Load serum. This dynamic pair works in tandem to tackle hair thinning and loss from all angles, ensuring your scalp receives all the attention it needs. With the ergonomic roller, you'll experience a new level of scalp engagement. It's designed to fit perfectly in your hand, allowing for targeted stimulation that promotes healthier hair follicles.