KO Light

What is KO Light

KO Light is a light irradiation treatment based on photobiomodulation (PBM) therapy using specific wavelength light in the red and near-infrared spectrum. Without using a scalpel or needle, light energy acts directly on skin cells, improving skin condition from within. It is characterized by minimal pain and downtime, allowing for continuous treatment while minimizing impact on daily life.

Mechanism of Action

When light reaches the skin, cytochrome c oxidase present in mitochondria within cells absorbs photons as a primary receptor (chromophore). This increases ATP production, triggering a cascade of transient reactive oxygen species (ROS) release, increased nitric oxide (NO), and calcium ion concentration regulation.

As a result of these primary and secondary reactions, diverse transcription factors including NF-κB are activated, promoting cell survival, proliferation, and migration, while inducing synthesis of new proteins such as collagen (Hamblin, AIMS Biophysics, 2017; DOI: 10.3934/biophy.2017.3.337).

Additionally, PBM therapy has been confirmed to exhibit "biphasic dose-response" properties—reducing reactive oxygen species in cells under oxidative stress—acting in the appropriate direction as anti-inflammatory in inflammatory environments and promoting regeneration in normal tissues.

Expected Skin Benefits

Improved Firmness and Elasticity

ATP production enhancement by light energy promotes activation of fibroblasts, increasing synthesis of collagen and elastin. Reports indicate that continued irradiation tends to improve sagging (skin laxity) and pore visibility.

Improved Dullness and Uneven Tone

Light irradiation promotes improved blood flow and NO production, alleviating skin dullness and poor complexion. Low-fluence light therapy is also used to address pigmentation from excessive melanin accumulation (Journal of Cutaneous and Aesthetic Surgery, 2019; DOI: 10.4103/JCAS.JCAS_179_18).

Anti-inflammatory Effects and Acne Benefits

PBM therapy has been confirmed in numerous studies to suppress inflammatory markers (ROS, reactive nitrogen species, and prostaglandins) (Journal of Clinical Medicine, 2020; DOI: 10.3390/jcm9061724), and is also utilized for calming recurrent inflammatory acne and redness.

Treatment Flow

After cleansing and washing to remove makeup and sebum, the specialized light device is uniformly applied to the entire face. Each session takes approximately 15–25 minutes, with light feeling gently warm and providing only minimal mild stimulation. Makeup is possible immediately after treatment, and there are virtually no special aftercare restrictions.

Multiple sessions are recommended to realize results. As a guideline, continuing with sessions at a rate of 1–2 times per month for 3–5 sessions makes it easier to notice changes in firmness and luminosity. Pace can be adjusted in consultation with your attending physician based on your skin condition and goals.

Safety and Downtime

KO Light is a non-invasive light irradiation treatment that uses neither scalpel nor injection needle. When irradiated at appropriate output and wavelength, the risk of burns or pigmentation abnormalities is extremely low, and the treatment can be safely received by a wide range of patients except those with photosensitivity or those who are pregnant. Post-treatment redness typically subsides within a few hours, making downtime virtually zero.