A helmet that fires red lasers into the scalp to treat hair loss has now been launched in the UK.
The helmet, called iGrow Hair Growth System, provides a minimum of 35-40 per cent increase in hair growth, its makers claim.
According to a study, published in the Lasers in Surgery & Medicine journal, the product encourages new, healthy hair while doubling the follicle size of existing hair and slowing down or stopping hair loss.
While the published study was only conducted on men, a similar study on women is due to be published shortly and the early results look "promising", the 'Daily Express' reported.
The helmet works using 51 low-level red laser and LED lights to help re-energise cells in the follicles, called low-level laser therapy (LLLT).
The product developed by Apira Science, Inc looks like an old salon hairdryer, has a built-in headphone base which enables you to connect any music, audio, TV or entertainment device while your hair is growing.
It is to be worn for 25 minutes a time and is recommended for men and women with alopecia or those with baldness in the family.
"The average person using iGrow will first start to see less hair loss after six to eight weeks," said a California-based dermatologist, Dr Lorrie Klein.
"After a few months their hair should start looking and feeling thicker, healthier and stronger. After nine months they will see the maximum results and continued use with the iGrow will continue these results," Klein said.