Natural Biotin Hair Growth Oil Serum: hair growth oil serum works effectively by naturally activating dormant hair follicle germ tissue on the scalp, promoting rapid growth and nourishment of hair due to its unique organic ingredients. It contains bio-active nutrients essential for hair growth.HEALTHIER & FULLER HAIR - Our nourishing formula strengthens thinning and weak hair resulting in noticeably thicker, fuller and healthier hair. Hair becomes smoother and shinier with less frizz and breakage.HOW DOES IT WORK? - The 540 titanium needles hair derma roller creates thousands of microscopic channels and activates the body's natural healing process, increases blood circulation, stimulates sleeping follicles, and maximizes oil absorption. The hair growth oil serum activates your hair follicles and boosts your hair growth.Does the derma roller really work? Using the derma roller has proved that it is very effective in treating hair loss through clinical research, studies, and trials. It is safe for your scalp and hair, as well as the rest of your body, and was also proven to be more effective when pairing with our hair growth serum.Suitable for all hair loss conditions. Despite the fact that there are different conditions of hair loss like alopecia areata, androgenic alopecia (AGA) or the most difficult case called alopecia totalis, fortunately for you, the derma roller is likely to benefit you regardless of what may be causing your hair loss.