There are no recipes to speed the growth of human hair, according to science, but natural recipes may create the illusion of faster growth. Natural recipes such as warm castor oil, rosemary oil and scalp massages may help improve scalp health and give hair a healthier appearance that resembles growth.
Human scalp hair grows at different rates at various stages in life, but adult hair grows at a rate of approximately 6 inches per year. There is no scientific evidence of any natural or unnatural diets or techniques to speed its growth. Approximately 3 to 8 percent of a person's hair may be growing faster than other hair at any given time, but this is the result of the normal life cycle of hair follicles rather than any natural recipes or home remedies.