HAIR REGROWTH SCIENCE
WHAT IS HAIR SCIENCE?
Hair Science or “Trichology” is a branch of dermatology that studies the health of both hair and scalp and is directly involved in the assessment and treatment of hair loss for both men and women.
To appreciate what is required to regrow hair, it is beneficial to comprehend the basics of hair science. This includes a comprehension of its structure, consisting of the hair follicle and shaft alongside the hair growth cycle and the hair shedding cycle. We will also touch on the causes of hair loss in both males and females, identifying the genetic link to hair loss, alongside other common causes.
Research has shown medical treatments directly applied to the skin have been effective in reducing hair loss and providing new hair growth.
WHAT IS HAIR?
Hair is made up of the follicle and the shaft.
THE HAIR FOLLICLE
The hair follicle is located within the skin. The shaft is what one can visibly see as it sits above the scalp. Much like a plant that has a root extending down into the soil, the hair follicle is a tiny tunnel that lies under the scalp, which extends down into the dermis. It has a number of layers, which carry out different functions. At the base of the hair follicle, you will find the papilla. It is made up of capillaries, which are tiny blood vessels. These tiny blood vessels nourish the cells. The part of the follicle that is alive is at the very base of the papilla known as the bulb. The cells in the bulb are quite active. These cells are capable of dividing every 23 – 72 hours. Surrounding the hair follicle are two sheaths known as the inner and outer sheath. Their function is to protect and develop a growing hair shaft.
There is a muscle attached below the gland. Its contraction will cause hair to stand up. Its contraction also causes oil secretion from the microscopic sebaceous glands hidden under the skin. This skin oil or sebum is vital for the health of one’s hair and skin. Sebum is a concoction of fats and dead sebaceous gland cells. Excessive sebum production, however, has the capability of clogging pores and causing hair loss.
THE HAIR SHAFT
The hair shaft has three layers and is made of a hard protein called keratin. There is an inner layer, called the medulla. The second layer is known as the cortex. The third and outer layer is called the hair cuticle. The majority of the hair shaft is taken up by the cortex layer. The cuticle is made up of overlapping scales that are tightly wrapped around the cortex. Both the cortex and the medulla hold one’s hair’s pigment. The hair growing on the scalp has a growth rate of .3 to .4mm a day. There are three stages of growth and shedding that hair will be undergoing at any one time.
HAIR GROWTH CYCLE
- Active phase
- Cells of root are dividing with speed
- New hair pushes the hair that has stopped growing, up the follicle and out of the scalp.
- Hair is growing about 1 cm every 28 days.
- This stage lasts 2-7 years and determines the length of one’s hair
- Approximately 90 % hair is at this stage
- Transitional stage, which lasts from 2-3 weeks
- Approximately 3% of all hairs are in this phase at any time.
- This growth stops and the outer root sheath shrinks and attaches to the root of the hair.
- This is the formation of what is known as a club hair.
- Resting phase
- 10 – 15% of all hairs.
- Lasts approx three months
- The telogen phase represents a time of rest for the hair follicle.
- Club hair is formed.
- About 25 to 100 telogen hairs are usually shed each day.
EXOGEN or EARLY ANAGEN
- Resting hair has reached its terminal position in the follicle.
- Hair detaches (sheds) allowing for new growth to come through
- If hairs enter the resting phase, prematurely excess shedding can occur.
Our hair growth supplements have been designed to nourish the scalp and hair follicle, delivering benefits that enable successful hair regrowth.
FEMALE HAIR LOSS
Though ageing is one contributor to a woman losing her hair, there are some other factors we will review, that should be considered if a woman begins to experience hair thinning and loss. A woman should acknowledge her unique risk factors early on, so the necessary lifestyle adjustments can be made. Often it takes something like hair loss, to alert a person to the health complaints lurking within. An otherwise healthy patient on the outside may very well be experiencing the onset of chronic disease or hormonal imbalance. As with anything, the sooner health concerns are identified and addressed, the far more positive the outcome.
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HAIR LOSS IN MEN
Approximately 1 in 5 males will experience hair loss and balding in their lifetime. This does not always occur later on in life. Male hair loss can happen as early as when a man is in his 20’s. In fact, 1 in 3 men will start balding in their 30’s. 40% of all men by the age of 40 will be showing signs of thinning and balding. Taking an interest in the prevention of hair loss early on is the best strategy if you are a male who is already experiencing thinning. People have their own unique risk factors for hair loss, and it is important to be self-aware and educated regarding yours. As with most health conditions, taking action early is key to successful and long-term treatment.
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