Young men can for the first time freeze their hair follicles as an insurance policy in case they go bald.
The Human Tissue Authority is reported to have given a Manchester company authorisation to set up the world's first hair bank.
From next week, men in the UK over 18 will be able to pay around NZ$3700 to store hair follicles, just as women freeze their eggs to start a family when they are older.
The follicles can be used to create stem cells which can be used to promote hair growth later in the patient's life.
This would be a less painful alternative to hair transplants and may avoid the side effects of using powerful drugs such as finasteride to stimulate growth.