HairBack Clinic

Hair transplant News

How Does The Hair Cycle Work?

Léa Prague on January 21, 2023 0 Comments • Tags: #haircycle #hairloss

hair cycle

The hair cycle is a continuous process in which each hair goes through three phases: the growth phase (anagen), the transition phase (catagen), and the resting phase (telogen). This cycle is regulated by genetic, hormonal, and environmental factors and is essential for the health and appearance of our hair. This article will examine the hair cycle and the factors that influence it.

How does the hair cycle work?


The anagen phase

The anagen phase is the active growth phase of the hair, where the hair root is connected to the hair follicle, and the matrix of the hair bulb continuously produces new cells to extend the hair shaft. This phase can last from two to six years, depending on individual factors such as age, sex, and overall hair health. During the anagen phase, the hair grows at an average rate of about half a millimeter daily.


The catagen phase

The catagen phase is a short transition phase that lasts about two weeks. During this phase, the hair bulb stops producing new cells, and the hair follicle shrinks. This interrupts hair growth and separates the hair from the root. The catagen phase represents only about 1% of the hair on the scalp at any given time.


The telogen phase

The telogen phase is the resting phase of the hair cycle, which lasts about three months. During this phase, the hair rests in the hair follicle without growing. At the end of the telogen phase, the hair falls out, and a new cycle begins with a new anagen phase.

The duration of the anagen, catagen, and telogen phases can vary depending on various factors such as age, sex, overall hair health, and genetics. For example, women have a longer average duration of the anagen phase compared to men, which explains why women generally have longer hair than men.

Why Understanding The Hair Cycle Is Important


Hair Growth

The hair cycle consists of three main phases: anagen (growth phase), catagen (transition phase), and telogen (resting phase). The anagen phase is the active growth period when hair follicles produce new cells, resulting in hair growth. Understanding this cycle helps us comprehend the average hair growth rate and duration.


Hair Health

The hair cycle reflects the overall health of our hair. Disruptions or abnormalities in the process can lead to hair problems, such as excessive hair loss (telogen effluvium), hair thinning, or hair that doesn’t grow past a certain length. Monitoring the hair cycle helps identify potential issues and allows for appropriate intervention.


Hair Loss Disorders

By studying the hair cycle, researchers and medical professionals gain insights into hair loss disorders like androgenetic alopecia (pattern baldness) or alopecia areata (autoimmune hair loss). Understanding the underlying mechanisms and disruptions in the cycle aids in developing effective treatments and interventions.


Hair Restoration

Hair transplantation and other hair restoration techniques rely on the knowledge of the hair cycle. Surgeons consider hair’s natural growth cycle to ensure successful transplantation and optimal outcomes. It helps determine the donor and recipient areas, as well as the timing of the procedure for optimal results.


Product Development

Cosmetics and hair care companies study the hair cycle to develop products that target specific phases. For example, some products claim to extend the anagen phase or stimulate hair follicles during the growth phase. By understanding the cycle, companies can create products that work in harmony with the natural processes of the hair.

The hair cycle is a continuous process in which each hair goes through three phases: the growth phase, the transition phase, and the resting phase. This cycle is influenced by age, sex, genetics, hair health, and hormones. Understanding the hair cycle can help maintain hair’s health and appearance and identify any hair health issues. 

Is it possible to speed up the hair cycle?

Many people want to speed up the hair cycle in order to have thicker and healthier hair. However, it’s important to understand that hair growth is a natural process that cannot be speeded up drastically.

There are a few methods that can help improve hair health and promote growth. For example, a balanced diet rich in protein , essential vitamins and minerals can promote hair growth. Additionally, taking specific dietary supplements can also help improve hair health.

In summary, there is no magic solution to speed up the hair cycle, but a combination of healthy eating, proper hair care, stress reduction and exercise can help improve hair health and promote growth.

(Visited 30 times, 1 visits today)

Leave a comment

Your email address will not be published. Required fields are marked *