A comprehensive guide to the therapeutic wavelengths and their penetration depths of the 7 most commonly used LED light therapy colors.
LED light therapy is a popular non-invasive skin treatment that harnesses the power of light to address a range of common skin conditions. These include wrinkles, age spots, acne, and uneven skin tone. The treatment works by emitting specific wavelengths of light that interact with the skin's表层 and underlying layers, promoting healing, collagen production, and overall skin health.
ColorWLDepthBenefitsUsed for
Blue625-740nmAffects uppermost layer of skinSoothes inflammation, calms sensitive skinAcne
Red600-700nmTravels further into skinThan blue/yellowAnti-aging, promotes collagen production, combats wrinklesAging
Green500-565nmPenetrates further past epidermisReaches papillary dermisCalming effect, even complexion, helps lighten hyperpigmentation spots, brighter complexionAnti-inflammatory properties, soothes surface of skinBalancing skin
Yellow565-595nmPenetrates deeper than blue lightReduces melanin production, alleviates redness from inflammation, sunburns, rosacea, stimulates lymphatic system
Red (Near-infrared)740-800nmPenetrates into deeper layers of skinRelaxes skin, accelerates growth of skin cells, accelerates healing of skin cells, enhances nutrient absorption, helps treat wounds, acne, and wrinkles
Cyan485-500nmPenetrates deepCombines benefits of blue and green LightsReduces acne and pigment stains, reduces swollen capillaries, helps with healing sun damage and inflammation, releases stress
Purple380-440nmPenetrates deepHighest penetrationDepth increases cell regeneration and renewal, Eliminates acne-causing bacteria, reduces facial inflammation, reduces appearance of acne-related scars
Near-infrared700-1000nmPenetrates deepest into skinFor amplified results, boosts results
Explanation of Colors and Benefits
Blue light is a popular choice for treating acne because it kills P. acnes bacteria and minimizes inflammation, resulting in a soothing effect on the skin. Red light, with its longer wavelength, is known for its ability to penetrate deeper into the skin and promote collagen production, which can help reduce fine lines and wrinkles. Green light is believed to alleviate melasma and brighten the skin, while yellow light helps to reduce inflammation and stimulate blood circulation.
Orange/yellow light, which is in the same family as red light, has a soothing effect on irritated skin and boosts collagen production. Purple light, combining red and blue light, is known for its ability to reduce inflammation, encourage cell turnover, and improve the appearance of acne scars. near-infrared light, which has greater penetration capabilities, is used for skin rejuvenation, wound healing, and muscle recovery.
Safety Considerations
While LED light therapy is generally considered safe, it is important to consult with a healthcare professional before undergoing any new skin treatment. Some individuals may experience side effects such as skin irritation or a sensation of heat during the treatment. Additionally, individuals with certain medical conditions, such as epilepsy, should avoid LED light therapy or seek approval from their healthcare provider.
Conclusion
LED light therapy is a promising skincare treatment option, offering multiple benefits that may improve the appearance of a range of skin conditions. By understanding the specific wavelengths and their effects on the skin, individuals can make informed decisions about their treatment, choosing the color that best suits their skin concerns and needs. With proper safety precautions and regular treatments, LED light therapy can help promote healthy, glowing skin.
