How Does Laser Work for Hair Growth

While purely a cosmetic problem, hair loss can be one of the most upsetting developments someone can experience. We’re more attached to our hair than we think and when we start losing it, it can be devastating. Over the years, various hair growth treatments have popped up, but with mixed results. Some swear by biotin pills, others are said to have seen growth with scalp massages, while others use coffee with satisfying results. But what’s the next big thing?

We’ve all heard of laser therapy for hair removal by now, but did you know that there is a method that uses laser for hair growth? It’s called Low Level Light Therapy (LLLT) and it’s the latest in hair growth technology. It’s quickly gaining popularity and men and women all over the world are excited to give it a try, hoping it will solve their hair loss woes. Is it for real, or just an elaborate marketing ploy? How does laser work for hair growth? Let’s find out!

What is Low Level Light Therapy?

First thing’s first – let’s talk about Low Level Light Therapy, what it is, and what it implies. The hair growth effect of LLLT was discovered in 1967, by accident, when a scientist was using laser on mice. He shaved the areas where the laser treatment was supposed to be used and after a while, he noticed something interesting – the mouse that had had the laser treatment done grew the hair back at a much faster rate than the other mice who hadn’t had it done. Now, LLLT is openly used to help with hair regrowth, and has been used in European countries for 30 years.

How does laser work for hair growth?

In generic terms, LLLT works by absorption of the laser into the cells from the hair follicle. This aids cellular activity, which, in turn, stimulates hair growth. With the proper light density and wavelength, results can be impressive. The targeted area is typically subjected to the laser for 30 to 60 seconds. LLLT works far better on damaged, aging cells than on healthy ones and it works by increasing their activity.

Who can use Low Level Light Therapy?

No one is warned against using the, but keep in mind that so far, scientists have experienced the best results with patients suffering of Androgenetic alopecia. That is hereditary male or female pattern baldness. However, even those users have to tick certain boxes. For example, completely bald people, or those who have very little hair remaining will not have such a high success rate.

Can you actually expect visible results?

According to the scientists, if you fall into the category of people who are likely to witness results, yes. Be aware that not everyone who tries it will experience growth, but if you find yourself among those who do, you can expect it to become visible around 26 weeks. Different people will have different experiences, so you may very well see results earlier or later, but know that it’s normal. If you’ve hit the 26-week mark and there isn’t any growth yet, you may want to wait a little longer.

PROs and CONs


  • It’s a method that yields actual results
    Unlike other topical or oral treatments, Low Level Light Therapy is actually effective, with proven results. It’s not an old wives’ tale or some DIY concoction you found on the internet. LLLT is a scientific method that has been demonstrated to work, so you don’t need to keep switching from ineffective treatment to ineffective treatment.
  • The treatment has no known side effects
    There are no side effects to Low Level Light Therapy. This method has been used successfully in Europe for the purpose of hair growth, with satisfying results, for the last 30 years. No adverse effects have been known to appear and/or interfere with the experience or results of this treatment.
  • It gives hope to the people suffering from hair loss
    Balding affects hundreds of thousands of men and women, and it can take a toll on their personal life, as well as their self-esteem and mental health. The existence of a known treatment that is actually effective lifts the burden of hair loss and gives hope to those who are afflicted.


  • Results may vary
    In all the excitement this treatment creates, it’s important to remember that results vary with each individual user and the scientific method has not been completely explored yet. Right now, it’s been shown to be effective on people suffering from hair loss, but not the ones who have little or no hair.
  • It’s costly – but the results are well worth it
    For all its benefits, Low Level Light Therapy is still an expensive treatment, especially considering the fact that there is a chance it will not work. The treatment will set you back between £900 and £3000 a year at a salon, and you need to do it for the rest of your life, because the moment the treatment stops, so do the effects. Comparatively, a device to use at home can cost somewhere between £200 and £900, which is better and you can use it in the comfort of your own home. The Theradome LH80 pro Laser helmet is a revolutionary FDA approved low level light laser helmet which uses this technology to help stimulate hair follicles at the source.

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