Which Red Light Therapy Wavelength is Right for You? A Quick & Easy Guide

Table of Contents > What is Red Light Therapy Wavelength? Visible Red Light vs. Near-Infrared Wavelength What is the Best Wavelength for Red Light Therapy? Which Wavelengths are not Commonly Used in Red Light Therapy? Wavelength Spectrum Wavelengths for Skin Wavelength for Hair Growth Wavelength for Fat Loss Comparison Chart Final Thoughts

  

Tired of sifting through endless jargon about red light therapy wavelengths? Feeling overwhelmed by conflicting information? We've got you covered.

In this quick and easy guide, we're cutting through the noise to help you discover the perfect red light wavelength for your unique needs. We'll cover everything from skin rejuvenation to hair growth, pain relief, and more.

What is Red Light Therapy Wavelength?

Let's get down to the nitty-gritty: what exactly is a red light therapy wavelength?

In simple terms, it's the distance between the peaks of a light wave. Think of it like the ripples in a pond – the distance between each ripple is the wavelength.

In red light therapy, we're dealing with two main types of wavelengths:

• Visible Red Light: This is the visible light you can see, falling between about 620 and 750 nanometers (nm).

• Near-Infrared Light: This is invisible to the naked eye, ranging from roughly 760 to 1500nm. 

 

Think of these wavelengths like keys unlocking different doors within your body. Different wavelengths penetrate the skin to varying depths, triggering different biological responses in our cells.

The 660nm wavelength, for example, is like the master key for inflammation reduction, while the 850nm wavelength might be your go-to for muscle recovery. And that's just the tip of the iceberg.

Different wavelengths within this range penetrate the skin to varying depths, triggering different biological responses in our cells. This is why understanding the nuances of wavelengths is crucial to getting the most out of your red light therapy sessions.

 

 

 

Visible Red Light vs. Near-Infrared Wavelengths

So, what's the difference between red light and near-infrared? It all comes down to penetration depth and the specific benefits they offer. 

Light penetration into skin

Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5653719/

 

It's important to note that red light and near-infrared wavelengths often work synergistically. Red light can prepare the tissue by increasing blood flow and cellular activity, while near-infrared light can then penetrate deeper and deliver its therapeutic effects. Some red light therapy devices combine both red and near-infrared wavelengths to maximize the benefits of light therapy or NIR light.

 

What is the Best Wavelength for Red Light Therapy?

The truth is, there's no single "best" wavelength. It all boils down to your individual needs and goals.

Different wavelengths offer different benefits. So, the best one for you depends on what you're hoping to achieve.

• Want to improve your skin's appearance? 630nm and 660nm are your go-to wavelengths.

• Need some pain relief or faster healing? 660nm and 850nm are your allies.

• Looking to boost muscle recovery or cognitive function? 850nm is your best bet.

The good news is, many red light therapy devices offer a combination of wavelengths, so you don't have to choose just one. It's like having a whole team of light therapy superheroes working together for your well-being.

Which Wavelengths are not Commonly Used in Red Light Therapy?

Not all wavelengths within the light spectrum are equally effective or commonly used in this therapy. Some specific ranges are less favored due to their limited biochemical activity, penetration depth, and other practical considerations.

Here, we explore the wavelengths that are not commonly used in red light therapy and the reasons behind their limited application:

700 nm to 750 nm:

A study has shown that wavelengths in the range of 700 to 750 nm have limited biochemical activity and are, therefore, not often used. This range is less effective compared to others, highlighting the need for further research to explore its potential applications and benefits.

Above 1000nm:

Wavelengths over 1000 nm are not often used in red light therapy for several reasons:

• Limited Penetration Depth: While near-infrared (NIR) light in the 810–850 nm range can penetrate tissues effectively, wavelengths beyond 1000 nm tend to be absorbed by water in the body. This absorption limits their ability to reach deeper tissues and organs, reducing their therapeutic effectiveness.

• Thermal Effects: The body begins to perceive the wavelengths as heat, not light. Wavelengths above 1000 nm can generate more heat when absorbed by biological tissues. This can lead to thermal damage or discomfort, making them less suitable for therapeutic applications where non-thermal effects are desired.

• Reduced Biochemical Activity: The specific biochemical pathways and cellular mechanisms that are activated by red and near-infrared light are optimized for wavelengths up to around 900 nm. Wavelengths beyond 1000 nm do not effectively interact with these pathways, resulting in reduced therapeutic benefits.

• Technological Constraints: The design and implementation of red light therapy devices are optimized for wavelengths within the 600–900 nm range. Extending the range beyond 1000 nm would require different technologies and materials, potentially increasing costs and complicating device design.

 

More research is needed in this area. At present, wavelengths between 630–660 nm (part of the red light spectrum) and 810–850 nm (in the near-infrared spectrum) have demonstrated significant benefits in various studies. As a result, these wavelengths are commonly adopted by most red light therapy devices.

The Red Light Therapy Wavelength Spectrum

Red light therapy isn't a one-size-fits-all solution. Instead, it offers a spectrum of wavelengths, each with its own unique superpowers. Think of it like a toolbox filled with different tools for different jobs. You wouldn't use a hammer to fix a leaky faucet, right?

Here's a quick overview of the most common red light therapy wavelengths and their specialties:

• 630nm (Red): This wavelength is your skin's best friend. It's excellent for boosting collagen production, reducing fine lines and wrinkles, and improving overall skin tone and texture. Think of it as your personal fountain of youth.

• 660nm (Red): This powerhouse wavelength penetrates a bit deeper into the skin, making it ideal for reducing inflammation, promoting wound healing, and easing pain. It's like a soothing balm for your body's aches and pains.

• 810nm, 830nm, and 850nm (Near-Infrared): These wavelengths are the deep divers of the bunch. They penetrate even further into the body, reaching muscles, joints, and even the brain. They're your secret weapon for pain relief, muscle recovery, cognitive function, and more. Think of them as your personal team of healers.

Some red light therapy devices combine multiple wavelengths for a broader range of benefits. So, which wavelength is right for you? Well, that depends on your individual goals and needs.

Red Light Therapy Wavelengths for Skin

Ready to unleash your skin's full potential? Look no further than red light therapy. But with so many wavelengths to choose from, how do you know which one is your skin's perfect match?

 

Let's break it down:

630nm

This wavelength, while not penetrating as deeply as others, is like a rejuvenating elixir for your skin's surface. It's absorbed by the epidermis (the outer layer) and stimulates collagen production, the building block of smooth, plump skin. Think of it as giving your skin cells a boost of energy to produce more collagen, leading to:

• Smoother, softer skin

• Reduced fine lines and wrinkles

• Improved skin tone and texture

If you're looking to turn back the clock and achieve a more youthful complexion, the 630nm wavelength is your go-to.

660nm

While still targeting the skin's surface, the 660nm wavelength digs a bit deeper than its 630nm counterpart. It penetrates further into the dermis, making it ideal for reducing inflammation, promoting wound healing, and easing pain. This deeper penetration can lead to:

• Reduced redness and irritation

• Faster healing of blemishes and wounds

• Improved skin conditions like acne and rosacea

If you're battling stubborn skin issues or simply want to maintain a healthy, balanced complexion, the 660nm wavelength is your secret weapon.

850nm

While primarily known for its profound impact on deeper tissues, the 850nm wavelength can also work wonders for your skin. It penetrates even deeper than other wavelengths, reaching the subcutaneous layer (the fat layer beneath the skin) where collagen and elastin are produced. This deep penetration can lead to:

• Increased skin elasticity and firmness

• Improved blood circulation for a healthy glow

• Enhanced overall skin rejuvenation

If you're looking for a more comprehensive approach to skin rejuvenation, the 850nm wavelength is worth considering.

Combination Therapy

The longer the wavelength, the deeper the absorption into the body. Many red light therapy devices offer a combination of wavelengths, such as 630nm and 660nm or 660nm and 850nm. This allows you to reap the benefits of multiple penetration depths in a single session. Think of it as a multi-vitamin for your skin, targeting various layers for comprehensive results!

Your Personalized Red Light Therapy Prescription

The best wavelength for your skin ultimately depends on your individual goals and needs. If you're primarily focused on anti-aging, the 630nm wavelength might be your ideal choice. If you're struggling with inflammation or skin conditions, the 660nm wavelength, with its deeper reach, could be your savior. And if you're looking for a deeper level of rejuvenation, the 850nm wavelength, reaching the subcutaneous layer, might be worth exploring.

Red Light Therapy Wavelength for Hair Growth

Losing your hair can feel like losing a part of yourself. But what if there was a way to stimulate hair growth naturally? Enter red light therapy, a non-invasive treatment that's been shown to help hair follicles thrive.

The 650nm Sweet Spot

While the 630nm and 660nm wavelengths are fantastic for skin rejuvenation, the 650nm wavelength is the star player when it comes to hair growth. Research suggests that this wavelength is particularly effective at stimulating hair follicles, promoting thicker, fuller hair.

Think of it like shining a spotlight on your scalp, giving your hair follicles the energy they need to grow and flourish.

How Does it Work?

Red light therapy at 650nm works by increasing blood flow to the scalp, delivering oxygen and nutrients to the hair follicles. This can:

• Extend the growth phase of the hair cycle

• Increase hair density and thickness

• Reduce hair shedding

• Improve overall scalp health

Research-Backed Results

Numerous studies have shown promising results for red light therapy and hair growth. One study found that red light therapy at 655nm significantly increased hair density in men with androgenetic alopecia (male pattern baldness). Another study showed similar results in women with the same condition.

Is It Right for You?

If you're struggling with hair loss or thinning hair, red light therapy at 650nm could be a game-changer. It's a safe, non-invasive option with minimal side effects.

Red Light Therapy Wavelength for Fat Loss

While LED light therapy devices are not a magic bullet for weight loss, it might surprise you to learn that certain wavelengths could play a role in your fat-loss journey. The science behind it is intriguing, but it's important to manage expectations and understand the nuances.

The 635nm & 850nm Combo

Emerging research suggests that the combination of 635nm and 850nm wavelengths could be the key to unlocking fat-loss potential. Here's how it works:

• 635nm: This wavelength is thought to help shrink fat cells by temporarily creating small pores in their membranes. This allows some of the stored fat to leak out, where it can be metabolized by the body.

• 850nm: This deeper-penetrating wavelength helps to stimulate lymphatic drainage, a process that removes waste products and excess fluid from the body. This can help reduce swelling and further aid in fat reduction.

Research and Reality Check

While studies have shown promising results for red light therapy and fat reduction, it's important to note that most of the research has been conducted on a small scale. More extensive studies are needed to fully understand the effectiveness and long-term benefits of low-level light therapy for fat loss.

Additionally, red light therapy alone is unlikely to lead to significant weight loss. It's most effective when combined with a healthy diet and regular exercise.

What to Expect?

If you're considering red light therapy for fat loss, be realistic about your expectations. It's not a quick fix, and results may vary depending on your individual circumstances. However, some people have reported:

• Reduced body fat

• Decreased cellulite appearance

• Improved skin tone and texture

If you're curious about giving visible red light therapy a try, consult with a healthcare professional to discuss whether it's a suitable option for you.

Red Light Therapy Wavelength Chart

Visual learners, rejoice. Here's a handy chart that breaks down the most common red light therapy wavelengths and their corresponding benefits:

Wavelength	Benefits
630nm	Boosts collagen production Reduces fine lines and wrinkles Improves skin tone and texture Reduces inflammation and acne
660nm	Reduces inflammation Promotes wound healing Eases pain Improves skin conditions like rosacea
810nm	Muscle recovery Joint pain relief Improved circulation Cellular repair Reduced inflammation
830nm	Deeper penetration for enhanced tissue repair May also support cognitive function and sleep quality
850nm	Deeper tissue penetration Enhanced muscle recovery Joint pain relief Improved circulation Cognitive function Sleep quality Fat loss (when combined with other wavelengths)

 

💡 Pro Tip: Many red light therapy devices offer a combination of wavelengths for a broader range of benefits. Look for devices that combine 630nm and 660nm for skin health or 660nm and 850nm for a blend of skin and deeper tissue benefits.

This chart is just a starting point. The ideal wavelength for you will depend on your individual goals and needs. Don't hesitate to experiment and find what works best for your body.

Final Thoughts

Feeling more confident about navigating the world of blue light therapy or red light therapy wavelengths? We hope this guide has illuminated the path to finding the perfect wavelength for your unique needs. Remember, it's not about finding the "best" wavelength, but the one that best suits your goals. 

Here's a quick recap of what we've covered:

• Red Light Therapy Wavelengths: We demystified what they are and how they work.

• The Spectrum: We explored the different wavelengths and their unique benefits.

• Skin, Hair, and Fat Loss: We delved into how specific wavelengths can help you achieve your goals.

• Red vs. Near-Infrared: We compared these two powerful wavelengths to help you understand their distinct advantages.

Stay Warm and Cozy with Homlyns

At Homlyns, we're all about creating a warm and inviting atmosphere in your home. Just like red light therapy, we understand the importance of choosing the right solution for your individual needs. Whether you're looking to warm up a chilly room or create a cozy ambiance throughout your home, we have a range of high-quality home heating solutions to suit your lifestyle. So, go ahead and bask in the warmth – you deserve it.

 

Reference:

• Larkin-Kaiser KA, Christou E, Tillman M, George S, Borsa PA. Near-infrared light therapy to attenuate strength loss after strenuous resistance exercise (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4299734/). J Athl Train. 2015;50(1):45-50. doi:10.4085/1062-6050-49.3.82
• Zhang R, Qu J. The Mechanisms and Efficacy of Photobiomodulation Therapy for Arthritis: A Comprehensive Review (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10531845/). Int J Mol Sci. 2023;24(18):14293. Published 2023 Sep 19. doi:10.3390/ijms241814293
• Keszler A, Lindemer B, Weihrauch D, Jones D, Hogg N, Lohr NL. Red/near infrared light stimulates release of an endothelium dependent vasodilator and rescues vascular dysfunction in a diabetes model (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5699925/) [published correction appears in Free Radic Biol Med. 2019 Feb 1;131:443. doi: 10.1016/j.freeradbiomed.2018.12.007]. Free Radic Biol Med. 2017;113:157-164. doi:10.1016/j.freeradbiomed.2017.09.012
• Avci P, Gupta A, Sadasivam M, et al. Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4126803/). Semin Cutan Med Surg. 2013;32(1):41-52.
• Yang K, Tang Y, Ma Y, et al. Hair Growth Promoting Effects of 650 nm Red Light Stimulation on Human Hair Follicles and Study of Its Mechanisms via RNA Sequencing Transcriptome Analysis (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8577899/). Ann Dermatol. 2021;33(6):553-561. doi:10.5021/ad.2021.33.6.553