Light Emitting Diode ("LED") is a non-invasive skincare treatment that uses varying wavelengths of light. The energy released is in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor. Using different colors of LED light create different stimulations of the skin including the different wavelengths.NASA originally developed it for plant growth experiments on shuttle missions and Navy Seals later found it to be beneficial for wound treatment. LED light therapy is used in skincare to increase collagen formation and help regenerate the skin from aging, acne, inflammation and any other issues.
Unlike other types of light therapy, LEDs do NOT contain ultraviolet rays. Therefore, they are safe for regular use. LED light therapy does NOT cause burns compared to other anti-aging treatments such as chemical peels, dermabrasion, and laser therapy. It is generally safe for all skin colors and types, although there are contraindications to this therapy. Side effects are rare, but may include increased inflammation, redness, and rashes. Office procedures usually take 15-20 minutes at a time and you will need to go back approximately two to three times a week up to 12 sessions.
Some of the popular LED lights and their benefits are as follows:
Red light (650-730nm): Red Light Therapy (RLT) - the most popular LED light treatment; can penetrate deeper into the skin to help promote good circulation, cell regeneration, stimulate collagen production, reduce the appearance of fine lines and wrinkles, anti-aging. Red LED light is also thought to reduce inflammation while improving circulation, which can give you a healthier glow.
Blue light (525-550nm): generally used for acne treatment; has antibacterial function which means the light can kill acne-causing bacteria and destroys the living environment of the bacteria. Blue light targets the sebaceous (oil) glands, which are necessary for lubricating your skin and hair so that it doesn’t dry out. However, these glands can become overactive, leading to oily skin and acne. The blue LED light can target the oil glands and make them less active. In turn, you may see fewer acne breakouts and eventually decrease scarring.
Green light (430-450nm): is commonly used in LED photofacials. It is great for reducing the appearance of skin spots, hyperpigmentation which results in pigments spots visible to the top layers of skin. Green light helps to reduce the production of melanocytes.
Orange and Yellow Light or Amber Light (590-620nm) commonly referred to as Amber light therapy. Although it does not penetrate as deeply as red light therapy it is able to penetrate the skin through to the dermis past the epidermis.
Purple light (340-440nm): Is dual red and blue light, which combines two phototherapy effects. Particularly, it has a good effect on repairing the acne and acne prints.
Clear blue light (340-440nm): Can gradually enhance cell energy, having a good metabolism facilitating role.
White light: Penetrates the skin deeply, accelerates active tissue metabolism, decomposition of color spots, improves the appearance of fine lines and sagging skin.
This is the reason that I paired LED light therapy with my enhanced facial treatments (Microdermabrasion, Dermaplaning, or Microneedling) to help maximize the benefits of the facial.