Dermatologist Dr. Sonia Batra says there is some truth to the beauty tip and calls it a "safe and effective" hair growth method for the brows.
She recommends using a 2 percent minoxidil product and apply with a cotton swab. She warns against getting minoxidil into your eyes, as it can cause irritation.
Dr. Batra stresses to not apply to an area where you do not want hair to grow, as she has seen patients develop hair on their cheeks!
Another possible method to improve your eyebrow fullness is mechanotherapy, which involves massaging any area of the body with thinning hair, which increases blood flow and may help to prevent the loss. In-office treatment options can include PRP (platelet-rich plasma), light therapy, or even hair transplants in the brow region.
But Dr. Batra's most important tip (and easiest) way to save your eyebrows -- do no over-tweeze and over-pluck them!