Rosemary is a medicinal plant that has been used to treat a variety of ailments, including skin irritation and hair loss. It is believed that rosemary oil has strong anti-inflammatory properties which promote healing in the skin and scalp. It is a godsend for people with thinning hair. It helps boost hair growth and thickening of hair as it nourishes hair follicles. Prevents premature greying and dandruff it may also help dry or itchy scalp. It stimulates hair growth, improves circulation and soothes the scalp. It will protect hair from damage and breakage, thus positively impacting hair loss.