It would do this by multiplying the hair a patient already has rather than using up the good hair that still exists on the patient's head. Hair cloning is done by taking stem cells, or dermal papilla cell, and cloning them in a laboratory setting. They are then multiplied and combined. The end result is an increase in the number of hairs available for hair transplant. Rather than just moving around individual hair follicles, surgeons actually moved a unit which contained everything the hair needed to keep growing. The results were ground-breaking. One way surgeons used to move the donor follicular units to the balding areas was by single strip harvesting. This is done by moving small strips of tissue containing follicular units. Be aware that not all hair transplant doctors are scrupulous businesspeople. Many will try to fool you into believing they are more experienced than they are. Sometimes, they will try to make you believe they do better work than they do. They will show you pictures that are not true examples of their own work. Eyebrows are just expected. Some people have hair transplant surgery to their eyebrows because the hair has simply fallen out over time. Others have thyroid disease or other diseases that affect their hair. A certain type of alopecia results in eyebrow loss. Excessive plucking can be a problem, too. Burns, tattoos, and infections can cause the eyebrow hair to fall out, and some people just are not able to grow eyebrows at all. People with the large plugs that look like doll's hair or toothbrush bristles are still around. While this type of hair transplant is rarely done anymore, the effects are still evident among people of a certain age. If someone who knows one of these people has a balding problem, they are not likely to think of hair transplants. If not, then at least you will have allowed your skin to heal. You may be given specific guidelines for eating in the weeks leading up to the hair transplant surgery. Excessive drinking may be a problem due to anesthesia and medications you have to take in the course of having your hair transplant done, so you may be asked to refrain from drinking until your head has healed.