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.

The growing interest in natural hair care solutions has placed rosemary oil at the forefront of beauty innovations. This ancient ingredient, now backed by

A dermatologist and trichologist share whether or not this viral ingredient can actually improve hair thickness.