Stages of Hair Growth and How Long Each Lasts

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• Makeup & Skincare 2024
• How to Find Infallible Foundation Shades That Match Your Skin Tone
• What are the stages of the hair growth cycle?
• Best for Temporary Hair Thinning: René Furterer Triphasic Reactional Concentrated Serum
• Catagen Phase
• Best Overall: Nutrafol Hair Serum

Any significant alteration to the normal growth cycle of a hair follicle may lead to a hair condition like alopecia areata or telogen effluvium. The hair follicles in your skin contain living cells to allow your hair to grow. The shaft—the part of the hair we see—is made up of dead cells and consists of three different layers. As a piece of hair grows, it goes through three phases before it sheds and a new one grows. The first phase, anagen, is the growth phase, which can last between two and six years.

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But baldness can also be permanent – one typical example is gradual hair loss in men (male pattern hair loss). The anagen phase is the longest phase of the hair growth cycle, lasting between 3 and 5 years for scalp hair, though some people’s hair remains in this phase for 7 years or more. During this phase, hair follicles push out hairs that continue to grow until they’re cut or until they reach the end of their lifespan and fall out. Approximately 90 percent of the hair on a person’s head is in the anagen phase at any given time. Also known as the resting phase, there is no active hair growth during the telogen stage, allowing hair follicles to rest and prepare for the next growth cycle.

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In most cases, if hair growth issues are identified early and treated (if necessary), normal hair growth can resume. We don’t need to tell you that it’s a long time for your hair to grow. But if our hair grows back that frequently, how can we explain things like hair loss and male pattern baldness? Do you worry every time you see a clump of hair on your shower floor or hairbrush? While it may be alarming, this seemingly sudden hair loss isn’t necessarily a cause for concern. Hair shedding is a healthy and normal part of the hair growth cycle.

What are the stages of the hair growth cycle?

At the bottom of the follicle, a piece of tissue called the papilla contains tiny blood vessels (capillaries). The follicle also contains the germinal matrix, where cells produce new hairs. This article will go over what happens during the telogen phase of the hair cycle.

At the base of the hair, the hair root widens to a round hair bulb. The hair papilla, which supplies the hair root with blood, is found inside the bottom of the hair bulb. New hair cells are constantly being made in the hair bulb, close to the papilla. This mask has collected accolades left and right since its debut. The Deep Conditioning Mask has become a must-have for anyone whose strands are suffering from one too many chemical treatments or heat styling sessions. Just one use a week is enough to ward away breakage while you grow out your tresses.

At puberty, terminal hair appears in the secondary sexual areas, commencing at the pubic region where it is pigmented and becomes coarser. These programmed changes occur due to androgenic stimulation in both males and females. Many men at some time after puberty suffer scalp follicular regression with a temporal hairline recession and the familiar bald patch at the posterior vertex. These often coalesce to produce MPA (male pattern baldness – androgenetic alopecia).

Different Types of Telogen Effluvium

Androgenetic alopecia is the most common type of alopecia, affecting both men and women. This condition is often called male pattern baldness, and for women, female pattern baldness. Hair fall, also known as hair shedding, refers to the average amount of hair you lose daily. The anagen phase for eyebrows, eyelashes, and other hair on your body is much shorter than the phase for the hair on your scalp. These hairs, also known as terminal hair, are usually more coarse than those on your head. Active growth lasts for two to seven years, depending on the individual.

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Catagen Phase

This usually lasts for around three to six months, and an estimated 10 to 15% of hairs are in this resting phase. The exogen stage is the final stage of the hair growth cycle, where hair strands are naturally shed from the scalp. During this phase, old hairs that have completed their life cycle are pushed out by new hair growth. This process typically lasts two to five months, and losing around 50 to 100 hairs per day is expected. The phases of the hair growth cycle have been extensively studied, and each of the steps follows its own timeline. Every stage depends on the next to produce healthy hair growth and hair shedding cycles.

Hair loss, hair thinning and problems with hair growth may occur when your growth cycle is disrupted. This can be triggered by conditions such as metabolic imbalances, illness or improper nutrition. The shaft is the visible part of the hair that sticks out of the skin. The hair root is in the skin and extends down to the deeper layers of the skin.

It functions as the attachment site for small muscles that control piloerection (how hairs stand-up in response to stimuli) and oil-producing glands (Brown & Krishnamurthy, 2021). A common hair disorder that disrupts the hair growth cycle is telogen effluvium (TE), which occurs when a large number of hair follicles enter the telogen phase at the same time, leading to excessive shedding. While the average person loses around 100 hairs daily, someone with this condition could shed approximately 300! The result is usually thin-looking hair, hair loss or balding in patches. As you might have guessed, all hair growth cycles are not created equal.

This is the transitional phase of the hair follicle, from growth to rest. The strands detach from the dermal papilla, decreasing the blood supply and the hair strand’s access to nourishment. Stage one of the hair growth cycle is the growth stage, called the anagen phase.

It protects your skin and traps particles like dust around your eyes and ears. If your hair gets damaged, it can renew itself without scarring. The hair matrix cells require vitamins like iron, zinc, and B-complex to multiply rapidly during anagen. Pop a supplement if daily meals lack enough nutrient diversity for optimal growth. Telogen acts as a crucial reset button allowing cells a reprieve to renew themselves before starting over. Around 10-15% of hair is teetering in telogen at any time before new anagen kicks in.

Mens’ hair begins to recede at the hairline, or develop a patch in the back. Women’s hair also thins, but it’s more of an all-over kind of thinning. When women have a receding hairline it’s referred to as frontal fibrosing alopecia. Your hair is constantly growing during the anagen phase, at the average rate of ½ inch per month. The length of your anagen phase determines the maximum length of your hair.

In brief: What is the structure of hair and how does it grow? InformedHealth org NCBI Bookshelf

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• Colleen Rothschild Quench & Shine Restorative Mask
• Aside From Age, What Can Cause Hair Loss?
• Want Our MAX Scalp Coverage, Doctor Recommended Laser Cap?
• Give Your Strands a Deep Conditioning Treatment
• Exogen Phase (Release Phase)

During the final, or exogen, phase, “old” hair sheds, though usually, a new hair is getting ready to take its place. Over time, the hair follicles begin to thin and prematurely transition to the telogen phase. Involution alopecia is one of the most common types of hair loss for both men and women. It involves the gradual thinning of hair due to genetics and age.

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This is especially important during the anagen stage, when hairs grow at a rate of about half an inch per month. These cells and the hair follicle are kept alive by the dermis which contains a network of blood vessels. During times of stress, the body produces higher levels of the hormone cortisol, which can disrupt the normal hair growth cycle. This can prematurely push hair follicles into the telogen phase, increasing hair shedding.

Aside From Age, What Can Cause Hair Loss?

Learning to de-stress with the help of yoga, meditation, breathing techniques, counseling, and avoiding some of the daily stressors in your life may help reduce your stress, which can have many positive health benefits. Built for those looking to address constant or moderate to severe flaking, redness, or irritation and want their mane left looking refreshed and silky smooth. Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.

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Because hairs continue to enter the resting phase and then fall out, we are constantly losing hair. A healthy adult may lose about 70 to 100 hairs on their head per day. But because new hairs are always growing and replacing them, this natural hair loss isn't noticeable. It’s also important to remember that the six inches of hair growth per year that the average person experiences is just that 一 an average. You might have no hair loss issue at all, and simply have a slower rate of hair growth.

Each product works to strengthen the hair from the inside out by reinforcing weak hair bonds that can result from heat styling or bleaching. Apply the pre-shampoo treatment on damp hair, leave it on for five to ten minutes and rinse. As we mentioned above, a pregnant mom can experience hair shedding for about two months after giving birth, up to about four months, but this shedding is temporary and normal. Finally, diet can lead to hair loss, particularly a diet that is low in protein and iron. These include pregnancy, childbirth, the discontinuation of birth control pills, and menopause. These are all normal, but if you’re concerned you should definitely contact your doctor.

Radiation therapy to the head

For most people, that can be anywhere between 18 to 30 inches. One fantastic option is the Scandinavian Biolabs Hair Growth Routine, a 3-step system designed to not only reduce hair loss but also support new hair growth and keep your locks strong and vibrant. It's important to note that the anagen phase varies for different hair types, such as eyebrows and pubic hair, which have a much shorter active growth period. In addition, “there are underlying conditions that can exacerbate hair shedding,” she says. Thankfully, once stress is reduced or eliminated, the growth cycle usually returns to its regular pattern.

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Some of the best ways to maintain healthy hair for each stage include the following. By week 22 of pregnancy, babies already have all of their hair follicles, or openings in the skin where hair grows. This totals about five million hair follicles, with about one million on the head and 100,000 on the scalp.

Additionally, the hair strand separates from the base of the hair follicle but remains in place as it undergoes its final days of growth. During the anagen phase, hair follicles actively produce hair strands that continue to grow until they are cut or reach the end of their lifespan and naturally fall out. But remember, the strands you see in the mirror each day are all at differing points in the growth cycle, so results will not occur overnight. “The commitment to having healthy hair is like a marathon,” Dr. Turegano says.

Exogen Phase (Release Phase)

Instead, eating a nutritious diet that includes plenty of protein is essential for healthy hair. People lose around 50–100 hairs from their body every day as part of the normal hair growth cycle. Over the course of a few weeks, the hair growth rate slows down and the hair follicle shrinks. The four phases of hair growth include anagen, catagen, telogen, and exogen. The first three phases — anagen, catagen, and telogen — cover the growth and maturation of hair and the activity of the hair follicles that produce individual hairs.

The hair separates from the bottom of the hair follicle but continues to remain in place during its final days of growth. An estimated 5 percent of the hair on one’s head is in this phase at any one time. Factors like stress, hormonal changes, nutritional deficiencies, and medical conditions can interfere with the natural hair growth cycle. Having a healthy head of hair also depends on factors like genetics and hormone levels, which are, of course, out of your control. Brakes Applied Following the “rush hour” of growth in anagen, the follicle enters a brief 2-3 week transition phase called catagen. The outer root sheath shrivels and disconnects from the blood supply ending further activity.

The longer the hair stays in the anagen phase, the longer it will grow. During this phase, cells neighboring the papilla in a germinative layer divide to produce new hair fibers,[13] and the follicle buries itself into the dermal layer of the skin to nourish the strand. About 85%–90% of the hairs on one's head are in the anagen phase at any given time. Once the anagen phase ends, the catagen phase begins and lasts about 10 days during which hair follicles shrink and hair growth slows down.

It is also caused by over-styling your hair, wearing tight braids, buns, or ponytails, using harsh hair coloring dyes, or overuse of heated styling tools. Our medicated shampoo & scalp conditioner duo pairs with plant-based supplements to holistically support scalp health, moisturization, and thicker hair from the inside-out. All hair deserves to be treated well, but it’s common knowledge that color-treated hair needs additional TLC. K18’s mask promises to repair the damage within individual hairs in minutes using the brand’s signature peptide. The L’Oréal Paris EverPureSulfate-Free Weightless Blow Dry Primer, Heat Protectant is a must-have for your hair care arsenal because it protects the hair from up to 450 degrees of heat. Remember that what the growth looks like is dependent on your hair type.