4 min read

Benefits of Blue LED Light Therapy

Concentric circles of electric blue LED lights

In recent years, the world of skincare and wellness has seen a surge in innovative treatments and therapies. Among them, blue LED light therapy has gained significant attention for its remarkable benefits. Dermatologists, spas, and individuals alike are adopting this non-invasive and scientifically backed approach to improving skin health and overall well-being.  

Understanding Blue LED Light Therapy

Blue LED light therapy, often called photodynamic therapy, involves using specific wavelengths of blue light to target and treat various skin conditions and health concerns. It is based on the principle that certain wavelengths of light can penetrate the skin's surface and interact with cells and tissues, stimulating a range of therapeutic effects.  

How Does Blue LED Light Therapy Work?

The science behind blue LED therapy is fascinating. Blue light has a wavelength that falls within the visible light spectrum, typically around 415 to 470 nanometers. When the skin absorbs this light, it triggers a chemical reaction within the bacteria responsible for acne, particularly Propionibacterium acnes (P. acnes). This reaction effectively destroys the bacteria, reducing inflammation and preventing future breakouts.  

Blue LED Light Therapy Benefits

1. Acne Treatment

One of the most well-known purposes of blue LED light therapy is its effectiveness in treating acne. Blue light targets the bacteria responsible for causing acne (P.acnes bacteria). Interestingly, acne-causing bacteria emit a photosensitizer which makes them exceptionally sensitive to light and vulnerable to damage by specific wavelengths.  When exposed to blue light, these bacteria produce less of the inflammatory chemicals that exacerbate acne, ultimately reducing breakouts and inflammation. Blue light treatments work best on acne when combined with red and near-infrared (NIR) therapy.

2. Collagen Production

Blue LED light therapy stimulates fibroblasts, the cells responsible for collagen production in the skin. Collagen, often called the skin's structural foundation, is a protein that plays a pivotal role in maintaining skin's elasticity, firmness, and youthful appearance. As we age, however, the natural production of collagen in our bodies gradually diminishes. By stimulating collagen production, blue light therapy can help reduce the appearance of fine lines, wrinkles, and even scars.

3. Wound Healing

Blue LED light therapy has shown promise in accelerating wound healing. It can enhance the body's natural healing processes by increasing blood flow to the affected area and stimulating the production of collagen and fibroblasts, essential for tissue repair.  Hemoglobin, a red protein responsible for transporting oxygen in our blood, shows exceptional absorption of wavelengths shorter than 600 nm. This suggests that blue light can support transport systems in the body as hemoglobin transports oxygen, immune system substances, and nutrients throughout the body and wounds, allowing them to heal faster.

4. Reducing Skin Infections and Inflammation

Scientists explain that the wavelength range of 402–420 nanometres has the most effective antimicrobial spectral range. Blue LED light is lethal to many species of bacteria and fungi. Moreover, blue light suppresses the cells that cause inflammation in the skin. Throughout several sessions, these cells calm down, and the physical symptoms become much less visible. Therefore, it can effectively treat eczema, psoriasis, and other chronic inflammatory skin diseases. It helps soothe irritated skin and reduce redness, providing relief for those with sensitive skin. 

5. Improving Mood and Sleep

These wavelengths are easily absorbed by our light-sensitive retinas, which is the key to a very important function of blue LED light: helping to regulate your circadian rhythm. The internal clock in our brain includes physical, mental, and behavioral changes that follow a 24-hour cycle and primarily respond to light and dark. Exposure to blue LED light can help regulate melatonin production, a hormone that governs our sleep-wake cycle.  


All colors of the rainbow affect the sleep-wake cycle, but none more so than blue light. Among the visible light spectrum, blue wave lights have the biggest impact on our sleep-wake cycle. When blue light interacts with photoreceptors in the eyes, it sends a signal to “wake up,” increasing alertness and mental sharpness.   

Incorporate Blue LED Light Therapy Into Your Skincare

While professional treatments at dermatology clinics and spas are always an option, thanks to technological advancements, you can also efficiently address your skincare concerns from the comfort of your home.  

Recurring Acne

For recurring acne, we recommend ESPADA™ 2 plus, targeted blue LED therapy acne treatment device. It features a precise light guide to target each individual spot with ultra-concentrated blue LED light, effectively terminating existing acne and inflammation on the skin’s surface. As it penetrates below the skin to kill acne-causing bacteria at the source, it also prevents future breakouts. The device also features T-Sonic™ pulsations, which stimulate microcirculation to accelerate the skin renewal process, fading acne marks and blemishes. 


For maximum results, use it with ESPADA™ BHA+PHA Blemish Solution as part of Swedish Acne Treatment Routine. This concentrated yet lightweight gel is formulated with a power-packed combination of ingredients. It quickly targets breakouts on the surface of your skin. Unlike most acne medications, which can cause unsightly dryness and peeling skin, this one keeps skin moisturized.   

Skin Rejuvenation

Due to its powerful benefits, LED light therapy adds maximum power to any skin rejuvenation treatment. We recommend FAQ 202 Anti-aging 7 colors+NIR Silicone LED Face Mask as the latest wonder of technology. Ultra-lightweight, wireless, and made with flexi-fit silicone to mold to your facial contours for even light coverage, FAQ™ 202 features 8 different wavelengths to boost collagen and tackle wrinkles, age spots, dullness, uneven tone, and texture - while you do literally anything else.   


The FAQ™ 200 Collection

For those who believe in the value of the finer things in life, the collectors of exquisite skin-tech as high-impact investments into the future, the FAQ™ 200 device range comes as a comprehensive, holistic routine to quickly firm, rejuvenate, and repair the face, neck, décolleté, and hands. An ultra-lightweight, wireless, and ergonomic anti-aging silicone mask collection with 7 + NIR LED treatments targets the most common signs of skin aging and also includes FAQ™ 221 Anti-Aging LED Hand Mask and FAQ™ 211 Anti-Aging LED Neck & Décolleté Mask.


The open-palm FAQ™ 221 Anti-Aging LED Hand Mask is designed to rejuvenate and restore the youthful appearance of hands that are frequently exposed to the sun and environmental damage.

FAQ™ 211 Anti-Aging LED Neck & Décolleté Mask is a dual-wear LED mask - that can be worn the opposite way to target wrinkles or bacne on the back of the neck, neck, and upper back.



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Hannah 28/04/2023

I've been using blue light therapy to treat acne for years and it definitely works for me! I used to go to a salon to get it done, but now I can do it at home with my espada!


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