Rosemary possesses antibacterial, anti-inflammatory, anti-oxidant, anti-apoptotic, anti-tumorigenic, antinociceptive, and neuroprotective effects.
It promotes hair development and prevents breaking by strengthening hair with oils.
A 1998 randomised, controlled, double-blind study of 86 patients with alopecia areata indicated that a blend of thyme, rosemary,
lavender, and cedarwood was more helpful than the placebo.
Basically, rosemary oil is as effective as topical minoxidil in treating androgenic alopecia, but it's safe for all hair loss patients.
Dr. Garlapati says rosemary oil promotes hair grow by reducing DHT, a kind of testosterone that shrinks hair follicles and causes hair loss.