I. Mechanism of Red Light Therapy:

1. Enzymatic reaction

The red light therapy device can penetrate energy into the subcutaneous tissue to a depth of approximately 3–5 cm, where it interacts with mitochondria in human cells. These mitochondria strongly absorb the light, triggering highly efficient photochemical reactions—specifically, enzyme-mediated processes—that boost the activity of various enzymes, such as catalase (CAT) and superoxide dismutase (SOD). This, in turn, enhances cellular metabolism, increases glycogen levels within cells, and ultimately stimulates DNA, RNA, and protein synthesis while also promoting the breakdown of adenosine triphosphate (ATP). As a result, cellular respiration is improved, microcirculation in tissues is enhanced, and both granulation tissue growth and wound healing are accelerated, facilitating faster recovery from injuries and underlying conditions.

2. Eliminate inflammation

Enhancing the phagocytic activity of white blood cells: Reduces inflammation and boosts the body's immune defense.

3. Reduce swelling and relieve pain

Reducing serotonin (5-HT) levels in the affected area: Produces excellent analgesic effects and helps eliminate swelling.

II. Mechanism of Blue Light Therapy:

1. Characteristics of Blu-ray Sterilization

Under blue light irradiation, bacteria stimulate their endogenous porphyrins, causing energy transfer between the photon-activated porphyrins and oxygen molecules. This process generates reactive oxygen species—such as singlet oxygen and hydroxyl radicals—which exhibit cytotoxic effects and ultimately lead to bacterial cell death.

2. Treat acne

Acne treatment primarily works by using blue light to eliminate *Cutibacterium acnes*, the bacterium responsible for inflammatory acne infections, thereby reducing inflammation and helping clear up pimples. The unique mechanism behind this process is that *C. acnes* produces a substance called porphyrin during its metabolic activity—this compound happens to be highly attracted to specific wavelengths of blue light, binding to it and ultimately triggering cell death. Blue light itself is a highly pure, deeply penetrating yet completely non-invasive form of illumination.

3. Laser "Antibiotics"

Instead of antibiotics, it effectively eliminates various bacteria causing surface infections on wounds, including Staphylococcus aureus, methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa, Acinetobacter species, Escherichia coli, Salmonella, Shigella, and facultative anaerobic Gram-positive bacteria such as Listeria. This promotes faster wound healing, reduces the need for antibiotic use, and helps prevent the development of bacterial resistance.

3. Product Indications:

Suitable for anti-inflammatory, pain relief, improving blood circulation, accelerating wound healing, and as an adjunct treatment for acne.