How to Support Healthy Hair Growth at Every Stage

Understanding the Hair Growth Cycle

Every hair on your head follows a natural growth cycle consisting of three main phases: anagen, catagen and telogen. These phases determine how long an individual hair grows, when its growth slows down and when it eventually sheds.

Importantly, your hair follicles do not all follow the same cycle at the same time. While some hairs are actively growing, others may be resting or preparing to shed. This is why you can continue to grow new hair while naturally losing older strands every day.

Understanding these phases provides a useful foundation for supporting healthy hair growth.

The Anagen Phase: Active Hair Growth

The anagen phase is the active growth stage, during which cells within the hair follicle produce the hair shaft. The length of this phase largely determines how long an individual strand can grow before it eventually enters the next stage of its cycle.

The anagen phase can last for several years, although its duration varies between individuals and is influenced by factors such as genetics, hormones and overall health. Scalp hair typically spends most of its time in this phase.

During active growth, newly produced hair gradually emerges from the scalp. As it grows, the strand becomes part of the lengths you wash, condition, detangle and style.

Although haircare products cannot determine how long a follicle remains in the anagen phase, maintaining a healthy scalp environment and protecting emerging strands from damage can help support healthy hair growth and preserve the hair you produce.

The Catagen Phase: The Transition Stage

The catagen phase is a short transitional period that usually lasts around two to three weeks. During this time, active growth stops, and the lower part of the hair follicle begins to shrink as it prepares for the resting phase.

This is a normal part of the hair growth cycle, rather than a sign that something is wrong with your hair.

Because the transition happens within the follicle, you generally cannot identify which hairs are in the catagen phase simply by looking at your scalp. There is also no specific haircare product that can prevent this natural transition or keep every strand actively growing.

Instead, continue following a routine that keeps your scalp comfortable and your existing hair well conditioned, manageable and protected from unnecessary damage.

The Telogen Phase: Resting and Shedding

The telogen phase is the resting stage of the hair growth cycle. It typically lasts around two to three months, although the duration can vary. During this period, the follicle is relatively inactive, and the hair is no longer actively growing.

Eventually, the resting hair sheds and the follicle can begin a new growth cycle. A new strand may then emerge as the next anagen phase begins.

This explains why finding hair in your brush, shower or on your clothes is not automatically a sign of unhealthy hair. Shedding is a normal part of the cycle, and different follicles reach this stage at different times.

However, a noticeable increase in shedding, persistent thinning or the appearance of distinct patches of hair loss should not automatically be attributed to the normal cycle. These changes can have several causes and may warrant professional assessment.

For a closer look at what is considered typical, read our article on How Much Hair Loss Is Normal in a Day? If you have noticed a persistent increase in shedding, our article Hair Shedding More Than Usual? explores possible contributing factors in more detail.

Supporting Healthy Hair Growth During the Anagen Phase

Although the hair growth cycle cannot be controlled through your haircare routine, there are practical ways to support your hair while it is actively growing.

Start by paying attention to your scalp. Regular cleansing helps remove excess oil, sweat, product build-up and other impurities that accumulate between washes. The right washing frequency depends on your scalp, lifestyle and how quickly your hair becomes oily or dirty.

Nutrition also plays an important role. Hair production requires adequate energy, protein and essential nutrients. Eating a varied, balanced diet helps provide the building blocks your body needs to produce hair. If you suspect a nutritional deficiency or experience unexplained hair changes, seek advice from a healthcare professional rather than starting supplements without guidance.

It is equally important to minimise damage as your hair grows. Every new centimetre of hair adds to the length you will eventually need to maintain. Excessive heat styling, rough detangling and repeated friction can weaken the hair shaft, making it more vulnerable to breakage.

Remember that healthy hair growth and hair length retention are not quite the same thing. Your follicles can produce new hair even when breakage prevents your overall length from increasing. Supporting growth while protecting the strands you already have helps address both sides of the equation.

Caring for New Hair Growth and Baby Hairs

Have you ever noticed short, fine hairs around your hairline, parting or temples and wondered whether they are new growth or breakage?

Short hairs can have several explanations. They may be newly emerging strands, naturally shorter hairs that have not reached their full length, or hairs that have broken before reaching the length of the surrounding strands. Their appearance alone does not always reveal which is the case.

New growth may initially appear finer or shorter than the rest of your hair because it has only recently emerged from the scalp. Hair can also look different in texture as it grows, particularly when the new strands have a different curl pattern from the lengths below.

If you have noticed that your hair is growing back with a different texture, read our article on Hair Growing Back Curly to explore why this can happen.

How to Protect New Hair Growth

Newly emerging hairs still need gentle care. Although their short length can make them seem less vulnerable, repeated tension, friction and aggressive styling can contribute to breakage around the hairline.

To help protect these strands:

• Be gentle when styling your hair. Avoid repeatedly pulling short hairs tightly into place or using excessive tension around your hairline.
• Detangle carefully. Work through knots gradually rather than pulling a brush or comb forcefully through tangled hair.
• Keep your hair conditioned. Conditioner helps improve slip and manageability, making the lengths easier to detangle without unnecessary friction.
• Limit excessive heat. Frequent high-temperature styling can damage the hair shaft, including shorter strands that are still growing.
• Pay attention to changes over time. If short hairs gradually become longer, they may be regrowth. If they repeatedly snap at similar lengths, breakage may be contributing.

Avoid assuming that every short strand needs to be treated with a growth-promoting product. In many cases, gentle handling and consistent care are more appropriate than adding unnecessary treatments.

If you notice widening partings, persistent thinning around the hairline or sudden changes in the amount of hair you lose, consider consulting a dermatologist. These changes can have causes beyond everyday hair breakage.

Protecting Your Hair During the Transition and Resting Phases

Once a hair leaves the active growth phase, it does not suddenly become irrelevant to your haircare routine. The strand remains part of your visible hair until it eventually sheds, and the condition of that strand still depends partly on how you treat it.

During the catagen and telogen phases, the follicle undergoes natural changes as the hair transitions towards shedding. Haircare products cannot restart active growth in a follicle simply because a strand has entered its resting phase. However, you can continue caring for the existing lengths to help maintain their condition.

This means keeping your usual gentle cleansing and conditioning routine, detangling carefully and avoiding unnecessary damage from heat, friction and tight hairstyles.

It is also worth remembering that you cannot reliably determine which phase an individual hair is in just by examining a strand that has fallen out. The hair growth cycle happens largely beneath the surface of the scalp, and shedding can occur as part of the normal process.

If you notice more hair falling out than usual, look at the overall pattern rather than assuming that all shedding is a result of entering the telogen phase. Changes in health, hormones, stress and nutritional status can also influence shedding.

How Preventing Breakage Supports Healthy Hair Growth

One of the most important ways to support your hair throughout its growth cycle is to prevent avoidable damage to the hair shaft.

Hair grows from follicles within the scalp, but the visible lengths consist of hair fibres that cannot repair themselves biologically once damaged. As these lengths become older, they have generally experienced more washing, brushing, styling and environmental exposure. This can make them more vulnerable to wear and breakage.

When hair breaks before reaching the desired length, it can seem as though it has stopped growing, even when new hair is continuing to emerge from the scalp.

Build a Routine That Helps Minimise Damage

A well-chosen conditioner can help smooth the hair surface, improve manageability and reduce friction during detangling. Hair masks provide additional conditioning for strands that need more softness, manageability or targeted care, depending on their formulation.

Leave-in products can also help with hydration, frizz control and easier styling between washes. If you use heat-styling tools, a suitable heat protectant can help reduce heat-related damage when used as directed.

Your everyday habits matter, too. Avoid aggressively brushing wet or tangled hair, use a suitable detangling tool and be mindful of repeated tension from tight hairstyles. You do not necessarily need to eliminate heat styling, but using lower temperatures and reducing unnecessary exposure can help limit damage.

These habits do not change the biological growth cycle. Instead, they help protect the hair that grows during it, allowing you to retain more of the length you naturally produce.

For a more detailed guide to retaining length, read How to Grow Longer Hair Without Constant Breakage.