Batra. Value noting: There’s an absence of investigation on humans exploring the hair growth benefits with the aforementioned ingredients, with the exception of rosemary oil. Though most of this study is preliminary, reports note that this essential oil may Improve your overall health by improving upon mental concentrate and memory, https://allhealthmarket.com/product/health-and-beauty-2/hair-care/biotin-hair-oils-for-hair-growth-anti-breakage-hair-growth-and-collagen-for-natural-hair-growth-anti-hair-loss/