Low-Level Laser Therapy (LLLT), also known as cold laser therapy, involves the use of low-intensity laser (LEDs) to alleviate pain or to promote healing in various conditions. Unlike surgical or aesthetic lasers, it does not cause tissues to heat up. LLLT is thought to work by reducing inflammation and promoting tissue repair and regeneration. LLLT is believed to enhance cellular function through a process called photobiomodulation. This involves the absorption of light by cellular components, leading to increased production of cellular energy (ATP), reduction in oxidative stress, and modulation of various cellular functions. The low-level laser therapy increased ATP production and reducing oxidative stress, cells can repair themselves more efficiently. This accelerates the healing process in damaged tissues. In addition, LLLT can reduce inflammation by decreasing the release of pro-inflammatory cytokines and increasing anti-inflammatory cytokines. This can help in reducing swelling and pain in the treated area.

   Low-level laser light therapy is used to treat chronic pain conditions, including neck pain, back pain, and arthritis. Clinical studies have reported that LLLT helps in the healing of muscle, ligament, and tendon injuries by accelerating tissue repair. LLLT has been reported to treat peripheral neuropathy symptoms by stimulating nerve function and shown to be beneficial in treating acne, psoriasis, and promoting wound healing.