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Glossary 

# LED (Light Emitting Diode)

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## Definition

In skincare, LED refers to light emitting diode technology used to deliver specific wavelengths of light to the skin. Different wavelengths target different skin concerns — red light for collagen and anti-aging, blue light for acne-causing bacteria, and near-infrared for deep tissue repair and inflammation. LED devices are used in both professional clinical settings and at-home treatments, and the technology has decades of research supporting its efficacy for various skin concerns.

[Explore LED Light Therapy Devices →](https://ledmask.schoolofdermatology.com)

## Related Terms

[Photobiomodulation](/glossary/photobiomodulation)[Red Light Therapy](/glossary/red-light-therapy)[Collagen](/glossary/collagen)

## Learn More

[![Red Light Therapy for Anti-Aging: What Dermatologists Actually Think](https://images.unsplash.com/photo-1579684385127-1ef15d508118?w=800&h=400&fit=crop&q=80&fm=webp)

Skin Concerns 

### Red Light Therapy for Anti-Aging: What Dermatologists Actually Think

June 9, 2025



](/articles/skin-concerns/red-light-therapy-anti-aging)[![At-Home Collagen Treatments: What the Research Actually Says](/assets/collagen-treatments-hero-QXeQISaR.webp)

Skin Concerns 

### At-Home Collagen Treatments: What the Research Actually Says

May 26, 2025



](/articles/skin-concerns/at-home-collagen-treatments)

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