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

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

Experts weigh in on the best hair growth shampoos that can stimulate hair growth and make your strands appear thicker and fuller.

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