Rosemary, Salvia rosmarinus
Rosemary is antimicrobial, anti-inflammatory, antioxidant, circulatory stimulant, etc. The circulatory stimulant properties are the cause for stimulating hair growth. Rosemary opens the capillaries of blood vessels. When the scalp has more circulation, it improves hair growth. Rosemary’s antimicrobial components allow the scalp to limit microbial activity.