Does olive oil really promote hair growth?

Olive oil may help promote hair growth due to its softening and moisturizing effects, according to Everyday Health. The fatty acids, beta-carotene, antioxidants and other chemical properties naturally found in olive oil help keep the scalp healthy, producing conditions that may ultimately be favorable to increased hair growth.

While Healthline notes that little scientific evidence has been established in support of olive oil's role in promoting hair growth and scalp health, there is some evidence that oils do have considerable moisturizing and smoothing effects on hair. This deep moisturizing may have some role in promoting and speeding up hair growth.