How Long Does It Take for Hair to Grow?

It does take time to see significant changes, but some products can help shorten the waiting time

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Have you ever experienced the frustration of cutting your hair shorter only to regret it later? Or embarked on a hair growth treatment, eagerly awaiting visible results but feeling impatient as time passes? Well, you’re not alone in wondering: Just how long does it take for hair to grow? This article is dedicated to answering that question.

Given the genetic nature of the topic, the short and not satisfying answer is: it varies from one individual to another, influenced by a multitude of factors such as overall health, age, and hair care practices. But, on average, human hair grows about 1.25 centimeters per month, or about 15 cm per year.

While small variations in growth may be normal and influenced by factors such as genetics and age, significantly slower growth can be a sign of hormonal imbalances, nutritional deficiencies, health issues or scalp damage. In such cases, it is advisable to seek out a dermatologist for a comprehensive evaluation and to identify any underlying issues.

How does the hair growth process work?

Hair goes through a growth cycle composed of three phases:

1. Anagen Phase (Growth): This is when the hair actively grows. During this phase, cells at the base of the hair follicle multiply quickly, making the hair longer. Lasting 2 to 7 years depending on genetics, this phase sees hair growing about 1 centimeter per month on average.
2. Catagen Phase (Transition): After the anagen phase, the hair follicle shrinks and ceases hair production. Serving as a brief transition between the active growth phase (anagen) and the resting phase (telogen), the catagen phase typically lasts only a few weeks.
3. Telogen Phase (Rest): During this period, the hair follicle stays inactive for a few weeks to several months. Around 10 to 15% of all scalp hair is in this phase at any given time. It’s a resting phase when hair stops growing actively, and the follicle becomes dormant. This phase usually lasts from 2 to 4 months.

After the telogen phase, the hair falls out and new hair begins to grow in the hair follicle. And thus, the cycle repeats, with the hair follicle entering the anagen phase again.

Does it work the same way for beard growth?

Yes, the growth cycle of a beard follows a similar pattern to that of scalp hair, although there are variations in duration and growth patterns among individuals.

While some may experience a similar timeline for full beard growth compared to scalp hair, others may see differences, either longer or shorter, depending on several factors – such as genetics, age, overall health, hormonal balance and skincare routine. Individuals also may observe differences in beard growth rate and density, with some areas growing more quickly or densely than others.

Products and Devices for Hair Growth

There are several products and devices that are promoted as capable of accelerating hair growth or stimulating hair follicles. However, it is important to keep in mind that the effectiveness of these products may vary from person to person. Here are some examples:

1. Minoxidil: Topical medication used to promote hair growth, primarily in the treatment of hereditary hair loss, also known as androgenetic alopecia. Its effectiveness is related to its ability to dilate blood vessels in the scalp, which increases blood flow to the hair follicles. This can stimulate hair growth, prolong the growth phase (anagen) of the hair cycle, and increase the diameter of existing hair strands. However, it is important to note that minoxidil may not be effective for everyone and may take several months of regular use to see significant results.

2. Nutritional support: A balanced diet rich in protein, iron, omega-3 fatty acids, vitamins A, C, E, and biotin, as well as zinc, is essential for promoting optimal hair health. Protein supports hair structure and growth, while iron prevents hair loss. Omega-3 fatty acids nourish the scalp and aid in hair growth, and vitamins A, C, and E act as antioxidants, protecting hair follicles from damage. Biotin is crucial for keratin production, and zinc supports hair tissue growth and repair.

3. Low-level laser therapy (LLLT) devices: It stimulates hair growth by delivering safe, low-energy laser light to the scalp. This light is absorbed by the hair follicles, where it enhances cellular metabolism and increases blood flow to the scalp. As a result, LLLT promotes the proliferation of hair follicle cells, extends the growth phase of the hair cycle (anagen), and stimulates dormant follicles to produce new hair. Additionally, it may reduce inflammation and oxidative stress in the scalp, creating a favorable environment for healthy hair growth.

4. Strengthening shampoos and conditioners: When selecting strengthening shampoos, opt for those containing key ingredients like keratin and biotin to fortify the hair shaft and promote resilience. Additionally, seek out shampoos infused with vitamins such as E, B5, and B3 to nourish the scalp and follicles. Botanical extracts like ginseng and aloe vera provide antioxidants for scalp health. Moisturizing agents like glycerin and natural oils such as argan, castor and jojoba hydrate the hair, preventing breakage. Some formulas may also incorporate caffeine to stimulate hair follicles and encourage growth.

5. Scalp exfoliation: By removing buildup of dead skin cells, oil, and hair product residues, exfoliation unclogs hair follicles, creating a more conducive environment for healthy hair growth. Additionally, stimulation of blood circulation provides essential nutrients to hair follicles, promoting more robust and vigorous hair growth.

Facial cleansing devices specifically made for beards: Just like hair, beard hair also retains dirt, oil, and dead skin cells, which clog pores and hinder healthy growth. Facial cleansing devices can help remove these impurities and unclog pores, which can create a more conducive environment for facial hair growth. Additionally, vibration or pulsation technology further stimulates blood circulation more than exfoliation alone.

It’s worth remembering that before starting any treatment to stimulate hair growth, it’s always advisable to consult a dermatologist for personalized guidance and to assess the suitability of the treatment for your individual needs.