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The Hair Growth Cycle

Have you ever wondered why some days your hair seems to be growing like wildfire, while on others, it appears stagnant? The answer lies in the fascinating and intricate process known as the hair growth cycle. As a natural phenomenon, hair growth follows a systematic pattern that involves multiple stages, each playing a crucial role in determining the length, thickness, and overall health of our locks. Let’s find out the secrets behind the hair growth cycle, shedding light on the remarkable journey that our hair undergoes.

The hair growth cycle consists of three main phases: anagen, catagen, and telogen. Each phase has its unique characteristics and functions, contributing to the overall growth and renewal of hair follicles.


  1. Anagen Phase

The anagen phase, often referred to as the growth phase, is the period during which active hair growth occurs. This phase can last anywhere from two to seven years, and its duration largely dictates the maximum potential length that your hair can reach. The cells in the hair bulb actively divide, leading to the formation of new hair fibers. On average, hair grows about half an inch (1.25 cm) per month during the anagen phase.


  1. Catagen Phase

Following the anagen phase is the catagen phase, a relatively short transitional period lasting about two to three weeks. During this phase, hair follicles begin to shrink, and the hair shaft is disconnected from the blood supply that nourishes it during the anagen phase. As a result, hair growth comes to a halt, and the hair detaches from the follicle, eventually leading to the shedding of old hair.


  1. Telogen Phase

The telogen phase, often called the resting phase, is the time when the hair follicle remains dormant. This phase typically lasts for about three to four months. While the old hair is in a resting state, new hair is preparing to emerge beneath it. Approximately 10-15% of our hair is in the telogen phase at any given time. Eventually, the old hair is pushed out by the new hair growing beneath it, marking the completion of the hair growth cycle.


Factors Influencing the Hair Growth Cycle

Several factors can influence the duration and quality of each phase of the hair growth cycle:

  • Genetics: Genetic predisposition plays a significant role in determining the length of each phase and overall hair growth patterns. Some individuals have longer anagen phases, leading to naturally longer hair, while others may experience shorter anagen phases and slower growth.
  • Age: As we age, the rate of hair growth tends to slow down, and the hair growth cycle may become shorter. This phenomenon can contribute to thinning hair and hair loss.
  • Hormones: Hormones, particularly androgens like testosterone, can impact the hair growth cycle. Hormonal imbalances may lead to conditions such as androgenetic alopecia (male and female pattern baldness).
  • Health and Nutrition: A balanced diet rich in essential nutrients, such as vitamins, minerals, and proteins, is crucial for maintaining healthy hair growth. Poor nutrition can disrupt the hair growth cycle, leading to weaker and thinner hair.


The hair growth cycle is a remarkable process that governs the life and vitality of our hair. Understanding its phases and the factors that influence it can help us take better care of our locks and address any concerns related to hair loss or thinning. While we may not have complete control over our genetic makeup, age, or hormonal fluctuations, we can certainly make conscious choices to support our hair’s health through proper nutrition, a healthy lifestyle, and targeted hair care products.

At Glojas, we welcome clients to reach out to us directly to schedule a free initial consultation. We offer guidance and valuable insights on how best to address your specific challenges. Let us assist you in navigating your journey with confidence and clarity.

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