Discovery of Donor Dominance Leads

Discovery of Donor Dominance Leads

Discovery of Donor Dominance Leads to More Refined Methods

In the 1950s, Norman Orentreich found hairs were the most successful at taking root if they were transplanted from a hair-producing area to another hair-producing area. He arrived at his conclusion – which he called donor dominance – after experiments on more than 50 volunteers with alopecia. Donor dominance explains how transplanted hair from certain areas can continue to grow in a new environment or another recipient.

More importantly, his research shattered the common belief that genetics were always the culprit. Though genetics can affect your hair’s characteristics, pattern baldness is more due to your hair follicles reacting negatively to a common male hormone called DHT.

Orentreich went on to create the punch-graft method, where, instead of larger grafted strip of skin like doctors use today, many small holes were created for the different follicles to be planted and grow.

Though this technique offered encouraging results, a scalp with many holes was certainly noticeable. Richard Shiell’s “Review of Modern Surgical Techniques” called it an unnatural “doll look” since it really could resemble a doll with individually inserted strands of hair.

Following these breakthroughs, efforts continued to refine the transplant process, including determining the optimal size, location, and number of the donor grafts. A variety of mechanical tools were even developed to improve the quality and quantity of punch-grafts, but none of these caught on.


Whether or not you’re considering hair transplant surgery, you want the hair you have to be as healthy as possible. It isn’t as simple as upgrading hair products, either; everything from how often you wash your hair to what you eat can have an impact. Instead of spending a fortune on unnecessary products or losing your hair to neglect, we’ve made a list just for you on things you can do to keep your hair healthy and lively (at any age): 

Easy There, Killa

Your hair really does need some tender, loving care: certain shampoos or heat treatments can do more damage than help. Even if you’re guilty of a few bad hair habits, there’s no time like the present to change!

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