The Science of LED Light Therapy: NASA Origins, Evidence, and Effectiveness

Dec 06, 2024by PURE Branding

LED Light Therapy has transformed modern skincare, becoming a sought-after treatment for issues like acne, aging, and overall skin health. But its journey began in a place you might not expect—outer space. Let’s explore how NASA discovered its potential, delve into research supporting its efficacy, and determine whether those affordable at-home LED masks actually work.

NASA’s Role in LED Light Therapy

The story of LED light therapy begins in the 1960s, but it gained significant momentum in the 1990s when NASA started investigating the use of light for space missions. Astronauts often faced slow healing and muscle atrophy in the zero-gravity environment of space. Researchers needed a solution that could stimulate tissue repair and accelerate cell growth.

NASA used red and near-infrared LEDs to study their effect on cellular processes. They found that these wavelengths of light could penetrate tissues, increasing energy production within cells and speeding up the repair of wounds and damaged tissues. This process, known as photobiomodulation, became a foundation for later applications in medicine and skincare (and now at PURE Spa!)

Key Research on LED Light Therapy

Numerous studies have validated the effectiveness of LED light therapy for various uses:

Wound Healing and Tissue Repair
- A NASA study demonstrated that red and near-infrared light could stimulate growth by 150–200% in human cells, accelerating the healing process for astronauts. Another study highlighted its ability to reduce inflammation and improve blood circulation, key factors in healing.
Anti-Aging
- A 2014 study in Dermatologic Surgery showed that red LED light significantly increased collagen density in participants after 12 weeks of treatment, improving skin elasticity and reducing wrinkles .
- Blue lig has been extensively studied for acne treatment. Research in the Journal of Clinical and Aesthetic Dermatology found it reduced acne lesions by up to 60% after eight weeks.
Chronic Pain and Recovery
- Infrared light therapy has been used successfully to reduce pain and inflammation in conditions like arthritis, with patients reporting improved mobility and reduced discomfort .

Do Cheap At-Home LED Masks Work?

Affordable LED masks have become incredibly popular, promising professional results from the comfort of your home. But how effective are they?

Power and Wavelength Matter
- Professional devices in spas or clinics use LEDs with high-intensity output and precise wavelengths tailored for therapeutic benefits. Many cheaper masks use weaker LEDs or may not emit the correct wavelengths, making their results less dramatic or slower.
Consistency Yields Results
- Studies suggest that even low-power devices can be effective if used consistently. For example, regular use of at-home red light masks can improve skin texture and reduce fine lines over time.
Safety Considerations
- Whilesafe, some low-quality masks may have inconsistent light output or poorly designed circuits. Always choose FDA-approved devices to ensure safety and efficacy.

Cheap LED masks can work, but patience and consistency are key. For quicker or more pronounced results, professional treatments remain the gold standard.

How NASA's Discovery Revolutionised Skincare

The insights gained from NASA’s research paved the way for LED therapy’s transition from space science to skincare clinics. Today, its applications extend far beyond wound healing, addressing everyday concerns like aging, acne, and pigmentation. Thanks to ongoing innovation, LED light therapy continues to unlock new possibilities for skin health and wellness.

LED Light Therapy (Face, Body and Sauna varieties) are now available at PURE Spa Aberdeen (Union Square), Edinburgh (Rose Street), Glasgow (Renfrew and West Nile Street).