Made from the popular herb, rosemary oil, when used consistently, has an amazing transformative effect on hair growth, according to a doctor.

Even if you're not dealing with hair loss or shedding, rosemary oil products can still deliver some ingredient benefits to your strands: 'Hair oils, including rosemary oil, are also great for those looking for natural approaches to growing smoother, softer, more manageable hair,' says board-certified dermatologist Dr. Brendan Camp, MD.

Wondering if the viral TikTok rosemary oil can strengthen and grow hair? We consulted dermatologists and experts on the benefits of rosemary oil, side effects, and more.

Scalp oiling boosts hair growth by stimulating blood flow to the scalp. Bridgette Hill, a trichologist and scalp therapist, explains how: “Certain oils are vasodilators: that means they widen the blood vessels.

"When thinking about hair growth, you need to take a whole-body approach and address the root causes," says dermatologist Dr. Mina Amin. Even something as simple as the shampoo you use and how often you apply it can be to blame: “Washing your hair too much with harsh shampoos can dry out your scalp and cause irritation,

People are rubbing chia seed oil all over their scalps to promote hair growth. Experts discuss whether this could actually work to stimulate your hair follicles.

Give your hair the love and care it deserves with the best hair oil for hair growth. Explore the top picks of 2025 for healthier, thicker tresses.