Olive oil does encourage hair growth: it reduces hair loss by preventing the hormone dihydrotestosterone, or DHT, from binding to the scalp, and olive oil contains antifungal properties and moisturizer that stimulate hair production, too. Olive oil helps make hair roots stronger, and contributes to making hair shinier and softer as well. Olive oil acts as a natural conditioner and delivers moisture to the scalp as well as hair strands.
In addition to moisturizing agents, olive oil contains antibacterial properties that help fight common skin conditions, such as lice and dandruff, that also impact the quality of hair. While all olive oils produce benefits for hair, extra virgin olive oil is the least processed and the purest form of olive oil.