Hair loss, which has been one of the most important problems on the agenda of humanity for thousands of years, can now be treated with scientific methods. Undoubtedly, hair transplantation is the most effective method among the remedies for advanced hair loss. There is now a very effective scientific treatment method for people whose hair loss has just started or is at a low level:
Lexington International, operating in Florida, USA, after 20 years of clinical experience and research and development, has developed a hand-held Laser Photo-Therapy device for healthy hair, namely HairMax LaserCombTM. Produced with a patent in the USA, LaserCombTM is an effective treatment method that does not require additional additives or lotions used for this purpose in controlling hair loss and making hair thicker, more voluminous and healthier.
Photo-Bio Therapy (Light Therapy)
When photons are applied to the skin, they are absorbed by the skin and underlying tissue, triggering the biological changes that occur within the body during this photo-stimulation process. Photon energy is absorbed by DNA, activating DNA. The cell’s DNA then delivers this new energy to the cell walls by a protein and calcium transfer. Then, the cell walls turn into a healthy state, allowing the cell to work at full capacity again.
It increases blood circulation in the tissues exposed to light, thus helping to transport vitamins and nutrients to the most needed area without damaging the surrounding tissues. As a result of the increase in blood circulation, toxins and other waste by-products are removed from the hair cells.
Light therapy is also called “phototherapy”. For example, visible red light has been shown to make positive changes on living tissues at the cellular level. It is very useful in the treatment of problems near the surface. Since the skin layers contain a high amount of blood and water, it absorbs red light very easily. Red light can be produced by a laser or an LED-type device.
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What is Laser?
There are two types of lasers: High Power or “Hot Laser” and Low Power or “Cold lasers”. What determines whether a machine is hot or cold is the amount of heat emanating from that machine.
Hot lasers cause thermal (heat) changes and damage tissues. They are used only in the medical field. Cold lasers, on the other hand, are allowed to be used because they do not cause heat changes in the tissues, and have been approved by the US FDA in recent years to be used by estheticians in beauty salons and health centers.
Today, “Cold Laser” is sometimes called Low Level Laser Therapy (LLLT) or Low Light Laser Therapy. Some doctors also call it “Cold Ray Therapy”. On the other hand, in low-power laser or low-level laser, the output power is low and does not damage the hydrogen bonds in the tissues, does not cause any changes other than the photochemistry effect.
History of Lasers
Many of the scientific principles necessary for the invention of lasers were laid out in the 19th and early 20th centuries. The definitions of the wave theory by Maxwell in 1864, the quantum theory by Planck in 1905 and the atomic structure put forward by Bohr in 1913 paved the way for the future development of this technology.
The real father of lasers is Einstein, who developed the theory on the stimulated emission of radiation in part of an article he wrote on quantum theory in 1917. After the development of Masers (Microwave Amplification of the Stimulated Emission of Radiation) by Gordon in 1955 and lasers by Maiman in 1960, Einstein’s theories were put into practice. Maiman’s initial work with the bright red wavelength led to the emergence of new lasers within a few years. To these lasers, HeNe and Nd:yag lasers were added in 1961, argon lasers in 1962, and CO2 lasers in 1964. These lasers have been used as dermatological systems since their inception.
Comparison of Laser Light and Daylight
A laser is a device that emits a special type of light. This light is special because it consists of light waves of a single wavelength, and all waves reinforce each other (like a heavy surf hitting the shore with big waves instead of many small waves). It is also called aligned light, in which the waves reinforce each other.
Normal daylight is not aligned light and consists of different wavelengths, from blue (400 nm) to red (750 nm in length) including all the colors of the rainbow. Professor at the University of Budapest. Master conducted many experiments with animal and human cells to explain the function of light on cells. Monochromatic light affects DNA, enabling lipoproteins to be used in the light-exposed region, so that the cell can function better and produce collagen and elastin.
Dr. According to Master’s experiments, the fact that the light is monochromatic rather than aligned has a more positive effect on the cells. prof. After Master’s work, companies started to produce Low Level Laser Therapy devices. Experiments have shown that this monochromatic light has a significant positive effect on the biological functions of cells.
SHOULD LASER BE USED IN COSMETICS?
Laser English; It is a word derived from the initials of the words in the sentence Light Amplification by Stimulated Emission of Radiation. This phenomenon was first described by Albert Einstein in 1917. Einstein had defined several basic views on the effects of exchange between electromagnetic radiation and matter. He also commented on induced oscillation. What do we understand from all this?
In its simplest form, an atom consists of a nucleus and surrounding electrons. When the electron encounters energy, it rises to a higher level from where it is and returns to its original place after a while. Meanwhile, it releases a ray particle: Photon. This process is called “self-oscillation”. If the excited electron collides with another photon, it will return to its original place faster, and in the meantime, it will release another photon. These two photons have the same wavelength and are called monochromatic. We can also talk about electromagnetic waves instead of rays. These waves initiate the induction of oscillation and cause the excited electron to generate another wave. Both waves move synchronously and in the same direction. This is called temporal and spatial coherence.
Structure of the laser
The laser basically consists of a tube and a gas, liquid or solid laser medium filled in this tube. In this laser medium medium, monochromatic and coherent photons are produced by induction of oscillation. The type of substance inside the tube has a decisive influence on the wavelength of the emitted laser light.
The substance in the laser tube is excited by a function called the pumping effect, this is done by electric current, optical (intense beam) or chemical means. Mirrors are placed at both ends of the laser tube. The mirror on the back reflects all the photons back onto the material inside the laser. The output mirror, besides reflecting, has the property of being transparent when it reaches a certain photon energy. Thus, photons are constantly reflected by mirrors. When there is an almost avalanche of light concentration, the front mirror is stretched and the laser beam is in a position to exit.
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Power Laser and Soft Laser
Another determining factor is the intensity of the applied energy. Laser is divided into two categories: high energy laser – power laser and lower-level laser or soft laser.
Power laser is primarily in medicine; It is used especially in eye diseases and vascular operations. It is also used in the disintegration of urinary tract stones and in the treatment of filaments (capillary vessel disease). The energy power of the soft laser is less than 100Mw/cm2. Such lasers are used in medicine, cosmetics and foot care.
Multidirectional effect When
biological tissues interact with laser beams, many different effects occur, such as photothermic, photomechanical, biochemical and bio stimulant. Let’s examine them one by one:
Photothermic effect: The absorption (absorption) of the energy created by laser beams causes a rise in temperature in the tissues. This temperature rise varies according to the characteristics of the tissue (absorption power, transmission ability, etc.), the intensity and duration of the laser beams. A number of different processes occur according to the height of tissue temperature. No thermal effects up to 40°C. Between 40-50°C, the cell membrane begins to dissolve and causes albumin to come out. When the tissue begins to cool again, neighboring cells fuse with each other. After 60°C, albumin loses its characteristic properties and undergoes changes. This condition is called photocoagulation.
After about 100 °C, the water in the tissue evaporates (photo vaporization). Between 200-300 °C, the tissue becomes charred, which is called carbonization.
Photomechanical effect: Photomechanical effects include evaporation (photo vaporization) and the formation of more or less powerful, mechanical waves. These waves create short-term high-pressure values in the tissues in question. This phenomenon is called photoablation (melting). This allows the tissue to be intervened without further thermal loading.
Biochemical effect: A Grutsch of Russian origin put forward the theory of biophoton in 1922, which was later experimentally confirmed by Townes in 1954. Grutsch discovered that cells exchange data with each other in the light field with the help of electromagnetic waves. These weak and yet unmeasurable electromagnetic waves were called biophotons. The presence of even a single photon in the cell can determine whether the reaction will be biochemical and its rate and equilibrium. For this, very intense laser energy should be applied and the cells where the application will be made should be exposed to the beam for a longer time. No temperature rise is observed during all these processes.
The purpose of other biochemical effects is the proliferation of the energy carrier ATP (Adenosyntriphosphat) in the mitochondria, which are called the powerhouses of the cells. Thus, some processes that require a lot of energy (eg healing of wounds) are accelerated. Reactions that require oxygen are amplified. The extra requirement for oxygen is provided by a reinforced microcirculation system.
Bio-stimulating effect: Low-energy laser can act on individual cells and different endogenous regulatory processes. With this bio-stimulation, blood vessels are regenerated, collagen fiber synthesis and microcirculation are accelerated, and the immune system is stimulated.
So far, we have explained the theoretical side of the laser. In this section, you will find explanations on the practical uses, contraindications, and safety precautions of soft laser in cosmetics and foot care.
Soft laser is used in cosmetology for problematic skin, scars, post-pregnancy skin problems, vascular recession, coupe rose (red puberty), treatment of varicose and prevention of contractions.
Soft laser is used in foot care, nail bed inflammation, inflamed calluses, finger deformations (eg Hallux valgus), therapeutic in warts, protective in nail fungus and as an aid in massages to the foot reflex center.
At the same time, acupuncture or in other words energy points are stimulated sensitively with soft laser. This type of use of soft laser is also applied in cosmetics and foot care. Compared to needle acupuncture, laser acupuncture is completely painless. However, the success of the result depends on the experience and the right choice of acupuncture points.
Laser and Biological Tissues
When a laser beam reaches the skin, it is reflected, refracted and dispersed like any other beam. The laser beam is continuously attenuated by the different skin layers while reaching the inside. It is the rate of absorption by different skin structures that determines the effect of the laser beam.
Reflection and refraction:
The laser beam is refracted and reflected at different rates by different skin layers in accordance with the refractive index at the input stage.
Scattering: The laser beam is scattered and dispersed by the different structures of the skin (molecules, fibers, small particles) and cells of the skin layers.
Different Structures in the Skin: Ex. Hemoglobin (red blood-colored substance), water and melanin-chromophores (brown substance of skin and hair) absorb different wavelengths of light at different rates. Thus, it is necessary to use a laser beam at various wavelengths of the beam.
Side effects should be emphasized before soft laser applications. Caution should be exercised in tumors, epilepsy and pregnancy. It should not be applied to the hormonally active areas of the uterus. Safety precautions should be strictly followed in the use of lasers, precautions should be taken to prevent accidents, the user manual should be read carefully, and laser glasses suitable for the type of laser should be used.
In addition, the laser beam should not be directed directly at the eyes or on reflective surfaces such as glass and mirrors. The laser beam should be looked at with a set of optical tools. When these conditions are met, the laser will offer versatile possibilities.
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