Laser therapy is one of the non-invasive treatments. The current medical world needs these treatments and that is because they prevent the effects of aggressive treatments. In the meantime, the science of laser has been very good because of the properties of laser beams. One of the branches of laser is low power laser therapy

Low-power laser therapy is a treatment that uses low intensity light in the range of 1–2 nm. The therapeutic effects of this method appear to be obtained by photochemical reactions that alter cell membrane permeability and subsequently increase mRNA synthesis and cell proliferation. The cause of these effects is not like laser surgery due to heat. Low-power laser therapy is used in medicine, dentistry and veterinary medicine for a variety of diseases and mainly for wound healing and pain control

Cellular physiology of low power lasers

Following the irradiation of the laser photons to the cell, the cellular response begins with activation of the photoreceptors in the mitochondrial respiratory chain, resulting in cellular redox modification followed by cell membrane state changes with calcium displacement and pH changes and activation. CAMP and DNA duplication lead to protein synthesis. Thus, cellular responses are elicited from the cellular level to the tissue and organ levels and have effects such as anti-inflammatory, anti-edema and swelling, analgesia, cell proliferation, neovascularization and accelerated healing, metabolism shifts to aerobic and immune balance. It comes. In general, tissue physiological responses to low-power lasers include

Systemic biological stimulation
Effects on the immune system
Anti-inflammatory and anti-edema effects
Effects on vessels and circulation
Effect on lymph
Effect on wound healing
Analgesic effect
Effects on nerves

The mechanisms for the reduction of inflammation and laser edema are as follows
Alteration of PGF2A, PGE2 synthesis
Increased PGI2 synthesis
Inhibition of bradykinin synthesis
Increased phagocytosis by WBC
More vasodilation and increased circulation
Increase lymph drainage by up to 5-fold and balance osmotic and oncotic pressures
Increased MIF secretion
Decreased histamine release

There are two types of lasers: low power and high power. High power lasers kill tissue and release heat, but low power lasers do not release heat and do not damage tissue, but low power lasers have a photochemical response and improve cell metabolism and because of their lower density. It is 2.5 watts per square centimeter, named after it (also called cold or soft lasers). These lasers react with the tissue and stimulate or inhibit the cell without causing heat

The Benefits of Low Power Laser
Stimulate the biological system and improve cell metabolism in damaged cells
Anti-inflammatory and anti-edema effects
Improve blood circulation and lymph
An analgesic effect
Immune system regulation
Low power laser application in medicine
Nowadays, in addition to its analgesic and restorative effects, it is used in the treatment of various diseases, including refractory ulcers such as diabetic wounds, vascular wounds, bed wounds and in physiotherapy (treatment of neuropathies, neuralgia, joint diseases and ...), its very beneficial effects in the treatment of skin problems are widely used

Low power laser application in skin and hair
Hair Loss Treatment: Since laser light improves cell metabolism and affects the blood supply to the area under treatment, it can be used in the treatment of androgenetic hair loss (hereditary hair loss) and in the treatment of regional baldness. Autoimmune diseases can have beneficial effects due to the effects of the laser on the immune system
Low power lasers can be helpful in accelerating hair growth after hair transplant surgery. With this laser, skin wounds heal faster and scars healed from surgery and healing

Coke and Mac Treatment: Low-powered lasers are very effective in improving blood supply and aid in the treatment of stains, and even in cases of refractory melasma and also prevent stains from returning
For this purpose, a treatment course of approximately 5 sessions with a 2- to 5-day interval is required

Acne Treatment: After removing the pimples and cleansing the skin, it takes about 2-3 sessions of laser once every 2-3 days

Facial Wrinkle Treatment: Low-power lasers can increase subcutaneous collagen tissue and ultimately reduce facial wrinkles. Low-power lasers can also help treat cellulitis and reduce the pain of shingles

In all cases of low-power laser beauty, if the microdermabrasion is used simultaneously, the laser effect will be multiplied

Laser use cases
There is actually no definite prohibition on using low power laser, but it is best to avoid it in the following patients
Patients with Pacemaker Laser should not be used on the chest
In pregnant women, laser should not be used in the abdomen, lumbar and pelvic area
Patients with cancer and malignant types
Patients with seizures or epilepsy
(Growing Children (in Bone Plates

Nowadays, after more studies and experiences in laser application, its analgesic and restorative effects are used in the treatment of various diseases, including refractory ulcers such as diabetic wounds, bed vascular and neuropathies, neuralgia, disease. Joints and more. But in spite of its applications, the unknowns and dark parts of it are numerous, and in many countries laser research teams continue to research