The Laser Advantage: Why Lasers Prevail Over LEDs for Effective Hair Growth
Posted by Hairmax Blog
The Laser Advantage: Why Lasers Prevail Over LEDs for Effective Hair Growth

You may see advertisements about LED hair growth devices. Don’t be fooled by companies that claim hair growth results from using LEDs instead of Lasers. There are significant differences between LEDs and Lasers.

We’re sure you have heard of laser pointers, but we bet you’ve never heard of LED pointers. You never will. Lasers can project light energy over long distances and penetrate deep into the skin. LEDs are made differently and are not able to project over long distances or penetrate the skin.

Sure, Lasers and LEDs may look the same, they both produce red light. But the light they produce is different. The light from a Laser is what is called, collimated and coherent. LEDs cannot produce collimated or coherent light.

Why is this important?

Lasers emit a beam of light in which all the light energy is in sync and moving in the same direction. Therefore, they can project over distance and penetrate the scalp. LEDs emit incoherent scattered light. The scattered light energy is not able to penetrate deep enough into the scalp to reach the hair follicle.

Also, coherent laser light energy is able to transfer to the cells of your hair follicle. More transfer of light energy, more hair growth.

Since laser light is collimated and travels in the same direction, most of the light is directed to penetrate the scalp. LED light is scattered and most of it reflects off the scalp and does not deliver the light energy required to energize the hair follicle.

Hairmax Uses 100% Medical Grade Lasers NO LEDs.
Why it Matters

Hairmax LED Devices


LASER light provides a narrow band wavelength of collimated light that stimulates the hair follicle directly.


LED light is broadband and dispersed. It does not penetrate to the base of follicle for optimal hair growth stimulation.


There are hundreds of clinical studies that prove laser light is capable of growing hair. There are only a few clinical studies about LEDs. And these LED studies do not even show good results.

Why do these other hair growth companies use LEDs instead of Lasers? Simple, because LEDs are cheaper, and these companies try to fool the public into believing they can grow hair.

Main Differences Between LEDs and Lasers:

  • Light Output (Coherent vs Incoherent): When comparing light output, lasers produce a coherent beam where photons are synchronized and move uniformly in one direction, while LEDs emit light that is incoherent, scattered, and lacks organization. The advantages of coherent light are as follows:
  • Enhanced Energy Transfer: Coherent photons, which move together in a synchronized manner, can transfer energy between molecules more effectively than scattered photons. This is helpful in processes like photosynthesis, where plants convert light into energy. Similarly, hair growth lasers delivering coherent light can penetrate the scalp more efficiently, stimulating hair follicles and promoting healthier hair growth.
  • Directed Effects: Coherent photons are more precise and can be aimed more accurately than scattered photons. This precision enables targeted control over particular cell functions, possibly leading to better medical treatments.
  • Monochromaticity: Lasers emit a focused beam of light, delivering energy precisely to molecules. This ensures accuracy in treatment and minimizes impact on surrounding tissues. In contrast, LEDs emit a wider range of light, which disperses the energy and decreases effectiveness.
  • Polarization: Laser light is aligned, concentrating its power in a single beam. This targeted approach enhances the effectiveness of the treatment.
  • Dosage Control: Lasers let us control exactly how much energy is used in treatment, allowing for customized treatments pertaining to the user’s needs. This helps get the best results while minimizing unwanted effects.
  • Scientific Evidence: Scientific evidence proves that despite LED companies making big claims about their products, the scientific proof doesn't support it. In fact, a study from 2018 in the Journal of Photochemistry and Photobiology B: Biology discovered that LEDs were not as good as lasers at relieving pain and reducing inflammation.

The Bottom Line:

Now you know. If you're looking for a scientifically validated light therapy solution that truly works for hair regrowth, don't bother with red light therapy LEDs. Opt for Hairmax instead – the pioneer and global leader in laser hair regrowth technology (LLLT).

Don’t believe the false promises of LEDs. Prioritize your hair health and wellness with Hairmax, the ultimate hair loss solution.

Are you ready to start your hair growth Journey? Visit: 

P.S. Share this article with your friends and family so they can also learn the truth about LEDs and lasers!

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