LED
LED light therapy, or light-emitting diode therapy, is a non-invasive skin treatment that uses lights of various wavelengths to stimulate cellular processes in the skin, leading to rejuvenation and repair. It can be used to address a number of skin conditions and boost overall radiance. While the treatment can be performed on its own, it’s more frequently used in conjunction with other treatments such as dermal needling, or as one component of a facial.
How does it work?
The nonthermal, low-level light penetrates skin without creating any trauma. The technology was first developed by NASA to grow plants in space, before the agency turned it on astronauts and found LED light therapy also promoted human tissue growth and wound-healing activity.
LED light treatments most commonly harness red light (often paired with invisible near-infrared light) or blue light. Each wavelength penetrates skin at a different depth, and treatments can use more than one colour.
Each different wavelength of light benefits the skin in its own way:
- Red light’s collagen-building effects make it useful in anti-aging treatments. It can help minimise the appearance of fine lines and wrinkles while mildly tightening skin. Thanks to its anti-inflammatory properties, it’s also suitable for soothing the irritation of rosacea, psoriasis, and eczema.
- Blue light is a proven-effective acne treatment that reduces breakout-causing bacteria and soothes inflammation.
- Green light reduces inflammation and induces collagen production.