Skin disorder provoked by inflammation of the sebaceous gland and the hair follicles.
Method which uses a mechanical obturator to produce the “pulse” effect of the laser beam.
Collection of phenomena of respiratory, nervous or eruptive character, produced by the absorption of certain substances which give the organism special sensitivity in the event of new action from said substances.
Loss of hair as a consequence of illness, functional disorder, or hereditary disposition. The medical term for hair loss.
Disease which makes the body produce antibodies against some of the hair follicles. It may derive from factors such as stress, genetics and the immune system. Alopecia areata tends to present in the shape of rounded plaques (coin-shaped) on the scalp, although they can also extend to other areas of the body.
Hair loss on the front of the head.
Is the total disappearance of the hair. It may begin as Alopecia areata or another cause.
Refers to hair loss produced by traction upon the hair, commonly seen with bunches, ponytails and other hair styles that create traction on the scalp.
Is the total disappearance of hair on any part of the body, including eyelashes, eyebrows, hair and scalp. It may develop as alopecia areata or as a result of some other cause.
Aminoacids are organic compounds that combine to form proteins. A lack of aminoacids may negatively affect hair growth.
The conversion process of one enzyme into another, such as testosterone to dihydrotestosterone.
Loss of normal sensitivity brought on by an anaesthetic drug.
Intravenous administration of hypnotic drugs producing a state of unconsciousness.
Anaesthesia to eliminate pain sensitivity in a small part of the body, generally the skin.
Introduction of anaesthetic into the epdirual space around the medulla.
Anaesthetic applied to the surface of the skin, generally a cream, liquid or gel.
Specialist who temporarily reduces or eliminates sensitivity by means of drugs.
The growth phase of the hair, it tends to last from between one and seven years.
Follicle, bulb, protuberance, vascular input, matrix, hair fibres.
Hair loss as a result of genetic predisposition to the effects of DHT on the hair follicles. Also called female pattern baldness, male pattern baldness, hereditary alopecia and common alopecia.
General term that refers to any male hormone. The principal androgen is testosterone.
A health problem or characteristic which is normally not present in a healthy individual; deviation from the norm.
America National Standards Institute – renowned national voluntary group which establishes the standards for use of equipment. The ANSI Z136.3 standard relates to the use of medical laser equipment.
Front.
Agent that blocks the action of androgens by preventing their adhesion to cell receptors, interfering with their metabolism, or reducing their production in the body.
Products that avoid or delay oxidation on the skin from the passage of time.
A CE marking means that the product in question complies with the requisites imposed.
A CE marking indicate that the product complies with the requisites specified in the EU directive about medical devices and that the product has been approved for commercialisation in Europe.
Enzyme (in reality an enzyme complex) which participates in the production of oestrogen and catalyses the conversion of testosterone (an androgen) into estradiol (an oestrogen).
Aromatase is found in the oestrogen producing cells of the suprarenal glands, ovaries, placenta, testicles, adipose (fat) tissue, and the brain.
Graft taken from the patient’s own body.
Azelaic Acid as Retin-A is more commonly used in the treatment of acne and other skin diseases. It inhibits the activity of the 5-alpha reductase enzyme, which participates in the conversion of testosterone to DHT.
Distance between two consecutive peaks in a light wave. Generally, measured in micrometres or manometers.
A laser dispenser that uses an assembly of arms and mirrors.
Piece of human tissue cut out for examination under the microscope.
Space destined for hair or laser depilation treatments.
The intermediate phase between the anagen phase and the telogen phase (phases in the hair growth cycle).
Currentlu unavailable, but with hair cloning it could be possible for you to have an unlimited number of donor hairs in a hair transplant.
All the waves of the laser beam are aligned in time and space.
Insoluble fibrous protein which is the principal constituent of fibres of the connective tissue (s in the skin and the tendons) and the organic substance on the bones.
All the waves from the laser beam are parallel to each other and do not converge or diverge.
The uppermost part of the head.
The layer of hair surrounding the medulla and is full of keratin fibres. The main structural part of the hair fibre that absorbs the greater part of its size and strength.
A target that absorbs light.
Substance used to lower skin temperature.
External surface of the hair, composed of the overlaying of colour scales of the keratin protein. It gives lustre and shine to the hair.
The phases in hair growth.
Chemical substance responsible for the transformation of testosterone into dihydrotestosterone.
Natural way for the body to heal and replace lost or damaged skin. A scar is normally composed of fibrous tissue. Scars can form for many different reasons, including as a result of infections, surgery, lesions of inflammation of the tissue.
Dynamic Cooling Device, which disperses refrigeration through a cryogen agent, on the skin prior to shooting the laser or during the laser treatment.
Amount of energy in any given spot size.
Resistance of a substance to light energy.
Hair removal.
Removal of excess hair by laser.
Inflammation of the skin.
The intermediate area of the skin and the support structure of same. This layer contains blood vessels, nerve endings, hair follicles and sudoriferous glands.
Male hormone that is the principal cause of the miniaturisation of the hair follicle and hair loss. DHT forms when the hormone testosterone interacts with the enzyme 5-alpha reductase.
Distance between the lens and the focal point, or distance from the lens that provides the adequate size laser beam.
Separator between the lens of the hand piece and the treatment area which, applied in contact with the skin, ensures the laser beam is at the appropriate focal distance.
Length of time that a laser pulse lasts, generally in nanoseconds, microseconds or milliseconds.
Inhibitor of the 5-alpha-reductase. Dutasteride inhibits both type I and type II 5-alpha reductase.
Tissue or substance at which the laser beam is aiming.
Nowadays this word is understood to mean the science of beauty and art.
The projection of the filament of the epidermis that provides protection and heat to the hair.
A protein found in the intermediate area of the skin, and which helps to maintain the softness and elasticity of the skin.
Process by which one molecule emits 2 light photons after absorbing one.
A local anaesthetic, which can be applied on the area to be treated, prior to the treatment.
The external layer of the skin, which protects us from heat and cold.
Reddening of the skin.
Method used to increase the effectiveness of hair restoration surgery.
Technique that includes the extraction of the follicular units from the donor site of a patient, generally the back or lateral part of the head, using a small surgical instrument.
Method proposed by Dr. Hamilton for the classification of hair loss.
Oestrogens are mainly female sexual hormones, produced by the ovaries.
Food and Drug Administration of the United States. The FDA regulates the use of all medical devices in the United States, including injectables and drugs.
Filament of quartz or crystal used as dispensing system for laser energy.
The generic name of the medication for treating the prostate. Which under the brand name Propecia is used as a hair loss treatment. It consists of an anti-androgen that blocks the formation of dihydrotestosterone through the inhibition of the enzyme 5-alpha-reductase.
Classification system for skin types based on the characteristics of the tan and the melanin content (Types 1-6).
Type of hair replacement surgery in which a piece of the scalp with hair is cut into three of four parts and they are transplanted to the bald areas of the scalp.
Amount of energy liberated in the tissue, calculated in Watts by Time, divided by the spot size in cm2.
Sac-shaped cavity in the skin in which a hair grows. The pod in which hairs grows.
The frequency with which the laser fires pulses, generally in pulses per second or hertz.
Light action which provokes or initiates a chemical reaction.
Transformation of light energy into heat.
Light energy liberated upon stimulating an atom.
Increase in sensitivity to light.
Theory by which lasers are designed which establishes the selection of a laser wavelength which would be strongly absorbed by the target, while the surrounding structures do not do so, and has an exposure time inferior to the thermal relaxation time of the target.
Relating to the genes or any of their effects. A gene is the smallest piece of physical inheritance. Genes determine which characteristics we will pass on to our children, as well as those we have obtained from our biological parents.
A low strength coaxial laser which provides visibility to the target area. Using an infrared or other invisible wave amplitude.
Surgical procedure for baldness (considered to be a barbaric procedure by the majority of ethical doctors).
Blood which is stored under the skin or in an organ.
Excess hair growth on the cheeks, chin, upper lip of chest; especially in women due to an excessive production of androgens.
Increase in the pigmentation in the tissue or skin.
Excess hair in the areas where hair does not tend to exist.
Internal layer of skin, also called subcutaneous tissue, which is composed principally of fat which acts as an insulator, stores energy and protects internal organs.
Reduction of pigmentation in the tissue or skin.
Deficiency of the thyroid hormone. Hypothyroidism may result in hair loss.
Transplanted hair.
Cut made to tissue or an organ, especially during surgery.
Result of an invasion of micro-organisms into the body, including bacteria, virus or fungi.
Reaction of the tissue to irritation, infection or lesion characterised by localised heat, inflammation, reddening and pain.
The upper part, or highest part, of the hair follicle.
Protein found in the healthy head (without hair loss) which appears to inhibit the adhesion of dihydrotestosterone to its receptor. This protein appears to be absent in androgenetic alopecia.
They impede the conversion of testosterone into DHT by blocking the action of the 5-alpha-reductase enzyme.
Use of a high intensity flashlight to excite coherent light emitting material and produce energy.
The term laser is an acronym for Light Amplification by Stimulated Emission of Radiation.
Lens used to focus the laser beam on a specific spot size.
Damage to the tissue produced by a source of heat or photothermal reaction.
White light, multitude of wave amplitudes present, does not have the properties of laser.
High intensity light similar to laser, it is used for facial rejuvenation, elimination of small vascular lesions, skin spots, pigmented lesions and small wrinkles and for depilation, in the latter they are not as effective as lasers.
10-9 metres, or 0,000000001 metres.
Operation consisting in pressing, rubbing or rhythmically striking and with adequate intensity certain areas of the body, principally the muscular masses, for therapeutic, sporting, cosmetic purposes, etc.
Region where the hair and the structures that compose it (cortex and medulla cuticle) are made.
Substance which produces laser energy.
Pigment produced by melanocytes in the skin.
Pigment producing cells in the skin.
Organs containing melanin within the melanocyte.
10-6 seconds, or 0,000001 seconds.
10-4 seconds, or 1/1000 of a second.
Means one colour: a specific light wave amplitude.
The same theory as hair cloning, each hair is multiplied or duplicated to create more available space for the hair transplant.
Therapeutic intervention carried out by professional doctors under anaesthetic and which requires the hospitalisation of the patient.
Process required after a surgical intervention, during which special care must be taken and the recommendations and indications given by the doctor who performed the operation must be adhered to.
Posterior part of the leg in the human body, immediately beneath the back of the knee.
Type of thin skin found on the majority of the body except for on the soles of the feet and the palms of the hands. It may or may not have visible hair.
The dermal papilla is located at the base of the hair follicle. The dermal papilla contains nerves and blood vessels, which provide glucose energy and aminoacids to the keratin. This structure is very important in the regulation of hair growth.
Characteristics of the laser beam, or the positions used with a laser apparatus.
Follicle, bulb, protuberance, blood vessels, generator (matrix) and hair.
Part of medicine that studies both the origin of diseases, as well as their causes, consequences and means for their cure or improvement.
Tip of the absorption curve in which the light absorbed by the chromophore in the tissue is significant.
Inflammation due to the collection of fluid in the interstitial space in the area surrounding a depression in the skin from where hair emerges. It is a positive sign of the emission of adequate light for the removal of the hair.
Hydroquinone or Hydrogen Potencial. It measures the acidity of the skin. PH neutral is calibrated at 7.
Colouration of the skin according to the class, quantity and form of distribution of the melanin pigments.
Hyperpigmentation and telangiectasia on both sides of the neck and chest associated with chronic exposure to the sun.
Darkened areas or areas of increased pigmentation in an area treated by laser after the treatment.
Artificial replacement (wig).
Complex organic compound. Proteins serve to repair and create new cells in the organism. One of their missions is to protect the skin.
Pimples in the beard of where the beard has been shaved.
Lasers that generate small pulses of light vs. lasers which emit continued light beams.
Purple or blue/black discolouration of the skin after laser treatment, bruising.
System of protection of the body and which covers its surface. The skin is made up of the dermis, epidermis and hypodermis. Skin-related diseases tend to be denominated dermatitis and the specialist who knows about these diseases is the dermatologist.
Thicker and more pigmented type of hair.
Type of skin found only on the palms of the hands and the soles of the feet. Skin does not grow on this type of skin.
Lesion on the skin produced when the degree of exposure to solar radiation or ultraviolet light source is excessive.
Chemical treatment, generally for cancer, using highly toxic drugs, which frequently cause temporary universal alopecia.
Room prepared for carrying out surgical interventions.
Types of radiation.
Spectrum of radiations emitted by the sun which range from infrared to ultraviolet. Accentuated exposure to solar radiation can be damaging to health.
Period after an illness during which certain special care and attention must be observed.
The act of light shining on a surface and bouncing off.
Laser head or laser cavity or laser tube. The location of the emitting resource and which produces laser energy.
Process by which the light beam is dispersed into a multitude of directions after hitting upon an object or tissue.
Absorption by a specific target, without affecting the surrounding structures.
The internal layer of the skin, also called “subcutaneous tissue”. Essentially, it is composed of fat and preserves body temperature, stores energy and protects the internal organs.
Closure of an incision or wound with stitches.
Components used to apply laser energy to a patient for example... articulated arm, fibre, handset.
Generally denotes the treatment beam size, it can be expressed in circular diameter or in the case of a scanner handset, in other geometric shapes.
Rest phase of the hair follicle, it lasts approximately 2 weeks.
Male hormone, liberated by the adrenal gland and the testicles, promotes the development of male characteristics.
It is a method of treatment that involves the genetic manipulation of an individual. A form of therapy which attempts to resolve the defective gene causing the disease.
The time a target needs to liberate half the energy gained, after being heated.
Substance applied directly upon the skin.
Temporary.
The passage of energy through a medium.
Advanced hair transplant technique which consists in extracting the units from the donor site and inserting them in another area (receptor zone).
Extensive classification of lasers according to their ability to cause lesions, Classes I-IV, Class IV are the most dangerous/powerful.
Natural cluster of hairs which grow together in a group on the scalp and share the same blood.
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