Scientific collaboration between Professor Marco Toscani and Dr. Pasquale Fino, Chair of Plastic, Reconstructive and Aesthetic Surgery, Umberto I Health Center – “Sapienza” University of Rome.
Genetic factors influence and determine the size of the diameter in hair.
Its volume varies from person to person. This is why some individuals are born with thin hair, while others are born with thick hair.
In hair, the diameter is a very important element. In addition to characterizing its look, it also gives us information about its health. Thin hair is less beautiful, less vital looking, less robust and more vulnerable than thick hair, and therefore also more susceptible to external and internal agents.
Hair is composed of three layers called (proceeding outwards from the innermost layer) the medulla, cortex and cuticle. The thickness and shape of hair depend on the cortex. In the cortex, keratin accumulates in greater quantities. In thin hair the cortex is thin and smaller than normal. A thin cortex makes the hair less compact and weaker, thus it tends to get damaged and to break more easily.
Hair may become thin not only due to genetic reasons but also because of many other factors and due to various problems for which specific treatments exist.
Aggressive aesthetic hair treatments (coloring, perms, ironing, bleaching, brushing too intensely, aggressively or for too long, aggressive and scorching hot irons, hair dryers that are too hot and close) act at the level of the cuticle (the external layer of the hair), until they wear it thin or consume it entirely, and may even cause hair loss.
Chemotherapy blocks the activity and function of the dermal papilla and the cellular proliferation process, therefore the hair that doesn’t fall out decreases in volume, wears thin and weakens.
Taking drugs for autoimmune diseases reduces the cellular proliferation that gives texture and body to the hair, but may also impede the proper toxin elimination process from the skin. In both cases, hair ends up growing thin.
External atmospheric elements damage the hydrolipid equilibrium of the skin and the hair cuticle, making hair thin and dry (excess exposure to the sun, smog and pollution, exposure to sea salt water, exposure to chlorinated pool water).
Stress or psychological/physical tension may lead both to excess sebum production (which leads to greasy hair) and to a production of toxins that block or weaken the hair formation process.
Moreover, thin hair is sensitive to static electricity that makes it tangled, messy and difficult to brush.
People with thin hair develop brittle hair and split ends more easily than those with thick hair. When hair grows thin not due to genetic reasons, but because of health problems pertaining to the hair cuticle or the pilosebaceous apparatus, hair loss may be a consequence and a signal of other problems. Even if it doesn’t fall out, thin hair appears to be visibly fewer in number and thinning.
Infrared rays, laser treatments and biostimulation treatments are used to restore the volume of thin hair. These methods have the goal of disinfecting and vascularizing the scalp. Their action aids and facilitates blood circulation necessary for the nourishing of hair. Using high quality, keratin-based restructuring products helps to thicken and reinforce thin hair.
Seborrheic hair loss is a form of premature hair loss that generally afflicts men in their youth (onset between 20 and 30 years of age), mainly affecting the frontal region and the crown. The cause, as the name of the condition suggests, is related to an excess production of sebum that provokes or accelerates hair loss.
Recent studies have demonstrated that around one in five young men tend to lose their hair prematurely over time.
This problem does not affect only young men but also young women.
In the majority of cases, it is androgenetic alopecia (pattern hair loss) and therefore is hereditary/genetic. However, it is important to remember that often factors of psychological origin like performance anxiety, trauma and emotional stress take over, thereby becoming a source and cause of hair loss from stress.
Some parameters and characteristics should be taken into consideration when assessing hair types and morphologies: shape, density and appearance. The appearance of hair, in the form of lanugo, occurs during the fourth month of pregnancy.
Scalp itchiness of varying intensity is a sensation perceived by many people of both sexes.
Itchiness is a scalp problem that leads those afflicted to scratch their skin and is often associated with pain. Many causes of this illness are recognized, which shouldn’t be underestimated as it may cause hair loss or thinning.
The acronym PRPHT stands for “Platelet Rich Plasma Hair Therapy”. It is a therapeutic medical technique that falls within the field of “regenerative medicine”; it is based on the principle that stem cells, which have been demonstrated to be present in the hair bulb, are equipped with growth factor receptors.
With the term Telogen Defluvium we mean a modest, not excessive, loss of hair in the telogen phase, but which tends to often be irreversible, with the precise characteristics of hair in decay or involution. The hair that falls out is usually short and fine, with bulbs that are undeveloped and reduced in size.
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