Trichology is the Para-Medical Science of the hair, hair loss and associated scalp problems. It encompasses the study of the diseases of the human hair and scalp, as well as the assessment of the cause(s) and treatment of these disorders. Trichologists certified by the World Trichology Society (WTS) are trained in the life sciences; they look at hair loss problems in a holistic way by evaluating clients on the basis of personal history, lifestyle, genetic factors and environmental conditions.

Causes of Hair Loss -The 7Hs of Hair Loss© by Dr. David Kinglsey

Heredity or genetic influences on the hair follicle are the most common causes of hair loss in both men and women. While genes passed down to you from your parents play a big role in hair loss they are not, in and of themselves, guaranteed to make you lose your hair. Obviously, if most of the people in your family, whether on your mother’s or father’s side, are losing hair, then you have an increased chance of also losing hair. That said, some scientific evidence suggest that about 20 percent of people exhibiting genetic hair loss don’t have any known family members with the condition. Besides the uncertainty of which hair loss genes you are going to receive from your family, the type of hair loss is also important when discussing hereditary influences. Male pattern alopecia and female pattern hair loss are the most common hair loss conditions connected with heredity factors, however, certain other hair loss conditions, such as alopecia areata may also be caused, in part, from genetic influences.

The health of your hair is a barometer of your overall health, meaning that there are many health factors that can influence your hair cycle. For example, surgery requiring anesthesia can disrupt the hair cycle as can a high fever, in particular, a temperature greater than 101 degrees Fahrenheit. In addition, numerous other general health factors can be important. Lupus (an autoimmune disease), digestive problems and infections may be relevant to your condition, causing conditions such as telogen effluvium (hair shedding) or cicatricial alopecia (scarring hair loss). The most important health influences are often the ones that occurred approximately four to sixteen weeks before the hair loss even became noticeable.

Published research has shown that your hair needs a plentiful supply of protein, energy-producing molecules (glucose) and certain vitamins and minerals for optimal growth to occur. As the hair follicle is a nonessential tissue and, therefore, one of the last tissues to receive nutritional substances (or one of the first to have them reduced), any long-term deficiencies may lead to hair loss. Protein deficiency can be a frequent cause of hair loss, because protein helps the body build hair fibers, which consist of 80 to 95 percent protein (this is especially relevant for vegetarians). For those who eat infrequently, the amount of energy available at your hair growth site may be deficient, causing the fair to fall out prematurely. The most common nutritionally related hair loss occurs while dieting. Severe weight loss due to dieting can often cause a temporary increase in hair shedding (telogen effluvium) due to metabolic changes in the body.

Stress can affect your hair cycle, and losing your hair can cause a lot of stress! Under most circumstances, as with many other hair loss causes, increased hair shedding occurs between four and sixteen weeks after the trigger has occurred. Yet most people attribute an increase in hair shedding to what happened yesterday or last week, not a couple months ago. Although it can be difficult to pinpoint a specific stress episode as the cause of hair loss, there is evidence that acute and chronic stress may precipitate hair loss conditions, such as genetic hair loss, telogen effuvium (hair shedding), alopecia areata (patchy hair loss) and trichotillomania (compulsive hair pulling).

Taking certain medications can cause hair loss in some people while the same medicine may not cause hair loss in others. Stopping a certain medication can also cause hair loss in some, but not in others. In addition, certain medications can cause hair loss the first time they are taken, but not subsequent times (once the body adjusts to the medicine, the hair loss stops), or they don’t cause hair loss the first time but do subsequent times (possibly due to the medicine accumulating in the body). It’s difficult to categorically say that one particular medicine causes hair loss and another doesn’t, as medicines can react differently in different people. However, some of the medications most commonly reported to cause hair loss are: chemotherapy medications, antidepressants, thyroid medicines, oral contraceptive pills and cholesterol medicines. The hair loss condition often caused by medications is called telogen effluvium (hair shedding).

Hormones control hair growth to a large extent and there are many hormonal irregularities that can affect the hair cycle. Often these produce other symptoms that can indicate their presence, although even if there is an absence of any other symptom, it does not rule out that a hormonal factor is present. Men using anabolic steroids (either for medical or recreational purposes) may experience increased hair loss. For women, hormonal influences on their hair may be indicated by irregular menstrual cycles, polycystic ovarian syndrome, menopause and post-partum. Hormonal problems can contribute to certain hair loss conditions, in particular, heredity hair loss and telogen effluvium (hair shedding).

Although not technically hair loss from the scalp, losing hair through breakage (traction alopecia) can cause hair thinning and slow growth. Breakage can occur due to chemical over-processing and/or incorrect styling, drying or brushing techniques. For example, using a dryer that is too hot can cause the hair to burn, often so much so that you can smell it burning as you dry. Vigorous brushing can also cause the hair to break.


genetic hair lossGenetic hair loss is a physiological event that can occur in both men and women of those races which carry the genes responsible for its development. Genetic Hair Loss is polygenic, meaning that many genes are involved in causing the condition. These genes can be inherited from either the mother’s or father’s side of the family, or from both sides equally. Some studies indicate, more specifically, that a young woman will more likely follow the hair pattern of her mother’s side.
The more close family members that have Genetic Hair Loss, the higher the percentage chance there is for an individual to also suffer the condition.There are many people who complain of losing their hair in a genetic-like pattern, yet no one in their family on either side is bald or even thinning. Some studies indicate that 15-20 percent of people exhibiting genetic hair loss don’t have any known family members with the condition.

Courtesy of Dr. David Kingsley, Phd

telogen effluviumAlso known as temporary hair loss, telogen effluvium (TE) is a diffuse, nonscarring alopecia characterized by the anagen (growing) hairs prematurely entering the telogen (resting) phase of the hair cycle.
Telogen effluvium usually presents itself as excessive shedding (called acute TE–under 6 months duration). However, it can also manifest itself with a normal amount of hair loss leading to gradual thinning (also called chronic TE –over 6 months duration).
Telogen effluvium is usually not a condition directly affected by hereditary factors. Instead, it occurs due to a disturbance to the hair cycle that causes the hair to fall out prematurely. These
disturbances to the hair cycle could be from a multitude of reasons.
Telogen effluvium can be caused by a metabolic change, chronic illness, hormonal irregularities, postpartum, stress, diet, or medications. The assessment of the cause(s) needs to be carried out in the initial consultation.
With chronic TE, care needs to be taken to differentiate it from genetic hair loss.

Courtesy of Dr. David Kingsley, Phd

trichotillomania-sTrichotillomania is the loss or damage of scalp hair through repeated pulling or twisting due to irresistible compulsive impulses.It tends to be chronic and causes severe discomfort and social problems. It is classified as a "disturbance of impulse control" by the Diagnostic and Statistical Manual of Mental Disorders and is generally categorized with obsessive- compulsive disorders.
Trichotillomania is more common among children than adults and occurs more than twice as frequently in women than in men. It sometimes occurs with bulimia nervosa in teenage girls.

Courtesy of Dr. David Kingsley, Phd

alopecia areataAlopecia areata is a non-scarring, inflammatory condition that is characterized by round patches of scalp hair loss.
Hair loss patches can sometimes also be seen on other areas of the body (ex. men’s beards)
Occasionally every hair follicle is affected on the scalp (alopecia totalis) or body (alopecia universalis).
The condition usually occurs between the ages of adolescence and thirty, but it can appear at any age and affects both sexes equally.
Alopecia areata has a rapid onset but tends to spontaneously reverse.

Courtesy of Dr. David Kingsley, Phd

scaring hair lossCicatricial Alopecia (also called scarring hair loss) is caused by the destruction of hair follicles, whether by a disease affecting the follicles themselves (primary cicatricial alopecia), or by some indirect external process, such as a blow to the head (secondary cicatricial alopecia).

Courtesy of Dr. David Kingsley, Phd

traction-alopeciaTraction alopecia is the breakage of hair along its shaft.
One of the most common causes of traction alopecia is the damage to or absence of the cuticle (outside layer of the hair). This can lead to a multitude of hair fiber problems such as breakage, knotting, splitting, and dullness. Although not technically hair loss from the scalp, losing hair through breakage can also cause thinning and slow growth.

Courtesy of Dr. David Kingsley, Phd


dandruffPityriasis Capitis is known commonly as ‘dandruff’. It is a common affliction of adolescents and adults and is relatively rare and mild in children. Its peak incidence and severity are reached at the age of about 20 and it becomes less frequent after 50. At 20 nearly 50% of the population are affected to some degree. The most accepted explanation for the cause of dandruff is that the yeast Malassezia ovalis (formerly known as Pityrosporon ovale) has a major role in triggering the condition. The overgrowth of yeast can be caused by stress, hormones, too much oil on the scalp, or problems with the immune system.

Pityriasis Steatoides (also known as “greasy dandruff”) occurs when dandruff binds together with scalp oil to become a greasy paste. The flakes are no longer shed, but accumulate in small adherent mounds. These ‘mounds’ of scale often have a yellowish color.

Both Pityriases (capitis and steatoides) are often chronic conditions, but they can be controlled with the proper treatment.

Courtesy of Dr. David Kingsley, Phd

seborrheic-dermatitis-of-the-scalpSeborrhea oleosa (also called just “seborrhea”) is characterized by an excessive oiliness of the skin; especially, in the area of the forehead and the nose. Sebum is a normal product of sebaceous glands. However, Seborrhea oleosa is due to an excessive secretion of sebum by the sebaceous glands. Because sebum is a fatty material, it can cause a strong odor if the hair and scalp are not shampooed frequently.

Seborrheic dermatitis is a common skin disorder that mainly affects the scalp, eyebrows, sides of the nose, and behind the ears. It tends to occur in oily skin areas. Seborrheic dermatitis causes scaly, itchy, red skin and dandruff. In infants, seborrheic dermatitis of the scalp is known as cradle cap. Seborrheic dermatitis doesn't affect overall health, but it can be uncomfortable and cause embarrassment when it develops on visible parts of the body. Seborrheic dermatitis isn't contagious, and it's not a sign of poor personal hygiene. Seborrheic dermatitis tends to recur, but flare-ups are manageable.

Courtesy of Dr. David Kingsley, Phd

psoriaisisPsoriasis is a genetically determined disorder of the skin which frequently involves the scalp. The classical feature of psoriasis is a bright pink, very inflamed skin covered in thick silvery scales. In severe cases the scalp is heaped with scale that forms a solid cap which may extend just beyond the hair margin. Although severe hair loss rarely occurs in psoriasis, some increased shedding of telogen hairs and some reduction in hair density is common.
Psoriasis may affect people of any age, but is most commonly seen in men and women between ages 15 and 35. The condition is not contagious.

Courtesy of Dr. David Kingsley, Phd

folliculitisFolliculitis is a contagious inflammation of the hair follicles. Folliculitis is caused by the yeast, Malassezia furfur. The main trigger of scalp folliculitis is damage to the hair follicle. Once it's damaged, bacteria, mites or fungus are able to invade the follicles. An excessively oily scalp can exacerbate scalp folliculitis.

Courtesy of Dr. David Kingsley, Phd

licePediculosis Capitis (known more commonly as Lice) is a worldwide public health concern. Although it poses no significant health hazard to infested persons, it can result in considerable discomfort, parental anxiety, embarrassment, and unnecessary absence from school and work. Infestation occurs most commonly in children, with a peak incidence between 5 to 11 years of age.Direct head-to-head contact is the most common mode of transmission. Head lice are parasites that feed exclusively on human blood several times per day.
They stay close to the scalp for food, moisture, warmth, and shelter. They survive for only 1 to 2 days away from the scalp although they may live for up to 4 days on the scalp. Nits (lice eggs), on the other hand, can survive for up to 10 days away from the human host. Lice can crawl and climb but cannot jump or fly.

Courtesy of Dr. David Kingsley, Phd

dermnet_photo_of_ringworm_on_scalpTinea Capitis (known more commonly as Ringworm), occurs when a particular type of fungus grows and multiplies anywhere on your skin, scalp, or nails. Ringworm is contagious. It can be passed from one person to the next by direct skin-to-skin contact or by contact with contaminated items such as combs, unwashed clothing, and shower or pool surfaces. Ringworm can also be caught from pets that carry the fungus. Cats are the more common carriers. The fungi that cause ringworm thrive in warm, moist areas. Ringworm is more likely when there is frequent wetness (such as from sweating) and minor injuries to skin, scalp, or nails.

Courtesy of Dr. David Kingsley, Phd


Not all hair loss is permanent. In fact, there are many hair loss conditions that can be helped by slowing, halting or even reversing the hair loss. First, you need to find out all the causes responsible for your hair loss. Next, you need to treat each of these causes. This means that a multifaceted treatment regimen may be necessary to achieve the best results. In general, the more treatments you use that are oriented to your problems, the better the chance of improvement. The effectiveness of Dr. Kingsley's treatments has been published in a dermatology journal and in Good Housekeeping.


Hair Loss is a condition that affects more than 60% of women and 85% of men at some time in their lives.

In response, Dr. David Kingsley PhD, developed a 3-step program for healthy hair growth. From his over thirty years experience and his research and publications on the subject of hair loss, this 3-step program is based on the hair-loss treatments practiced at Dr. Kingsley’s trichology centers.

British Science Formulations® by Dr. David Kingsley is a comprehensive at-home treatment program that has been scientifically formulated by Dr. Kingsley for healthy hair growth by providing important nutriments and natural scalp stimulants which help support the availability of important nutrients in the hair follicle.

“While I originally developed the British Science Formulations® 3-Step Program for use within my trichology clinics, I wanted to find a way to make the system available to all those suffering from hair loss.”

─ Dr. David Kingsley