Understanding the Hair Growth Cycle

The hair growth cycle is an intricate dance of biological processes that not only dictate the length and health of your hair but also serve as a mirror reflection of your overall well-being. When you dive deep into the science of it, you find an ecosystem full of intriguing phases and transitions, all balanced delicately to maintain the vitality of your tresses. This fundamental knowledge is indispensable when you’re seeking treatments or products to enhance your hair’s quality. In this guide, Yun Nam Hair Care reviews each stage of the hair growth cycle, the factors that can disrupt it, and the importance of sustaining a balanced cycle for optimal hair health.

A Detailed Explanation of Each Hair Growth Stage

Let’s review what each stage entails:

Anagen: More Than Just the Growth Stage

The anagen phase is where the magic of growth happens. It’s a bustling time for your hair follicles, which actively pull in nutrients from your blood supply, facilitating quick cell division at the root level. This phase can last several years, with your hair growing about 1.25 cm per month. When Yun Nam Hair Care reviews a client’s hair profile, we are focused on optimising conditions for a fruitful anagen phase.

Catagen: The Intricacies of Transitioning Out

The catagen phase kicks in once the anagen phase wraps up, usually lasting around 10 days. During this transition, the hair follicles begin to contract, and the pace of hair growth slows down. Although the hair strand detaches from the base of the follicle, it stays in place for its final growth moments. At any given time, only about five per cent of the hairs on your scalp are in this particular phase.

Telogen: A Time for Rest and Reset

A lesser-known aspect of the telogen phase is that it serves as a reset mechanism for your hair follicles. Spanning around three months, this phase places about 10 to 15 percent of your hair follicles in a resting state. While it may seem like a period of inactivity, it’s actually a preparatory stage setting the stage for future hair growth. Yun Nam Hair Care takes these subtle complexities into account in their reviews and customised treatment plans, underlining the significance of this stage.

Exogen: Shedding Light on Shedding and Renewal

During this phase, hair is shed from the scalp, often facilitated by washing or brushing. It can last about 2 to 5 months, where new hairs grow in follicles as the old hairs fall.

What Interrupts the Growth Cycle and How It Affects Hair Health

Here are the various factors that affect the growth of hair:


Stress is a major culprit in disrupting the hair growth cycle. When you experience prolonged stress, it can force hair into the telogen phase prematurely. This results in a higher percentage of hair in the resting phase, reducing the overall density of your mane.


Hormonal imbalances can have a significant impact, especially in women. Pregnancy, menopause, and certain medical conditions can create imbalances that either extend or shorten specific phases in the hair growth cycle, leading to a change in hair texture, volume, and growth.


As we age, the duration of the anagen phase gradually shortens and the telogen phase lengthens. This leads to hair that is weaker, thinner, and more prone to breakage. In some cases, the follicles stop producing new hair entirely, leading to baldness or thinning hair.

Other Factors

Factors such as poor nutrition, scalp infections, and the use of certain medications can result in interrupted growth cycles and various forms of hair loss. It is essential to address these issues promptly to restore balance to the hair growth cycle.

A Holistic View for Personalised Treatments

Our hair is more than just a physical feature; it’s a complex biological structure. Yun Nam Hair Care focuses on a scientific review of the intricacies of hair follicles, recognising each strand’s uniqueness. By carefully reviewing each client’s hair structure, we customise treatments to address specific needs. This approach transcends cosmetic enhancement, connecting you to optimal hair health through scientific understanding and practical care. Contact us today to learn more about our personalised, review-based approach to hair care.

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