Rosemary Collection 🍃. Stimulates hair growth: A combination of rosemary and cinnamon oils can promote hair growth by increasing circulation to the scalp and strengthening hair follicles. Improves hair health: Rosemary oil is thought to inhibit DHT, a hormone linked to hair loss, while clove oil cleanses the scalp. Strengthens hair: By nourishing the hair follicles, these oils can lead to stronger hair and reduce hair fall.