Straight hair does not cover scalp like curly hair does. If you have straight hair, you can be sure that your hair transplant surgery will be a challenge to your doctor. Curly hair appears to provide even more coverage than it actually does because it stands up from the head. 6. The way your hair color compares to your skin color will have an effect on the look of your hair transplant. This is an interesting question, because one would think that looking in the mirror would be more a problem of people who have already had hair transplant surgery. Actually, quite the opposite is true. When people are concerned about balding, they spend much time looking into a mirror to double-check and re-comb their hair to make it look like it covers more of their heads. The research cannot be done as to whether these hairs can safely and effectively be transplanted onto a person's scalp yet. First, they cloning process will have to be completely perfected. Only then can the hair transplant trials begin. More research needs to be done to find out which hair cells can be used for hair cloning and then hair transplant procedures. People realize that men have receding hair lines and balding on the tops of their heads. It is not out of the ordinary to see a woman with thinning hair. Yet, look at a person without eyebrows and the effect will be disturbing. Eyebrows are just expected. Some people have hair transplant surgery to their eyebrows because the hair has simply fallen out over time. Based on the fact that the average Caucasian male has a density of 2 hairs per millimeter, it can be assumed that the average density of hair is 1250 hairs per square inch. Figuring at an average of 2 hairs per follicular unit, it would take 625 follicular units per square inch. To get 25% of that, you would need 156 follicular units per square inch. It should have an SPF of at least 30. Having just the right amount of blood flow to the hair transplant sites will make a big difference in how fast they heal. For example, you need to make sure you get enough blood flow during the night. You can do this by sleeping on pillows to elevate your head. Your usual pillows can be used, or you can buy wedge-shaped pillows made for this purpose.