Penzi says you shouldn't stress about using it alongside other products that might be in your haircare regime. Reduces scalp irritation: It can also cut down scalp irritation from troubles like dandruff since “it can be thought to be a vasodilator, indicating it raises blood circulation in scalp skin,” says https://allhealthmarket.com/product/health-and-beauty-2/hair-care/10-15-20pcs-biotin-fast-oil-hair-serum-baldness-hair-thinning-regrowth-treatment-liquid-anti-hair-loss-for-women/