Skip to Content

How Fast Does Beard Hair Grow? A Guide to Understanding Facial Hair Growth

A beard with a ruler measuring its growth

Facial hair growth is a natural process that occurs in all men at different rates. Some men are lucky enough to grow a full beard within a few weeks, while others may take several months. But what determines how fast beard hair grows? In this guide, we will explore the factors that contribute to hair growth, how to measure beard growth, and tips for promoting healthy beard growth.

The Science Behind Facial Hair Growth

Facial hair growth is a result of the hair growth cycle, which consists of three phases: anagen, catagen, and telogen. Anagen is the active growth phase, while catagen and telogen are resting phases. During the anagen phase, hair cells divide rapidly, and hair growth is at its peak. The duration of the anagen phase determines the length of facial hair growth. The length of the anagen phase varies from person to person and can last anywhere from two to seven years.

But did you know that the rate of facial hair growth can also be affected by external factors? For example, stress and poor nutrition can lead to slower hair growth, while a healthy diet and exercise can promote faster growth.

The Hair Growth Cycle

The hair growth cycle is a continuous process that occurs in all hair follicles. Once the anagen phase is complete, the hair enters the catagen phase, where growth slows down, and the hair follicle shrinks. The telogen phase is the resting phase of the hair growth cycle, during which time the hair follicle is dormant. After the telogen phase, the hair falls out, and the growth cycle begins again.

It’s important to note that not all hair follicles are in the same phase at the same time. This is why some hairs may be shorter or longer than others, and why some hairs may fall out while others continue to grow.

Hormones and Their Role in Beard Growth

Hormones play a significant role in facial hair growth. The male hormone testosterone is responsible for the growth and development of secondary male characteristics, which includes facial hair. The density and thickness of facial hair are directly related to testosterone levels. Testosterone promotes the growth of vellus hair, the fine, light hair that covers the face, and transforms it into terminal hair, the thick, dark hair that represents a full beard.

However, testosterone is not the only hormone that affects facial hair growth. Dihydrotestosterone (DHT) is a derivative of testosterone that is more potent and has a greater effect on hair growth. DHT is responsible for the growth of hair on the chin, upper lip, and sideburns.

Genetic Factors Affecting Beard Growth

Genetics is another essential factor that affects beard growth. The DNA we inherit from our parents largely determines our hair growth rate and the thickness of our hair. However, it is important to note that genetics is not the only factor that affects beard growth, and men can still promote healthy growth through proper care and lifestyle choices.

For example, using a high-quality beard oil can help moisturize the skin and hair, promoting healthy growth. Regularly washing and conditioning the beard can also help prevent breakage and split ends, leading to a fuller, healthier beard.

In conclusion, while genetics and hormones play a significant role in facial hair growth, there are many external factors that can also affect the rate and quality of growth. By taking care of your beard and living a healthy lifestyle, you can promote healthy growth and achieve the beard of your dreams.

Factors Influencing Beard Growth Speed

Having a beard is a sign of masculinity and has been a symbol of power and virility throughout history. While genetics plays a significant role in beard growth speed, several other factors can influence how fast your beard grows. Let’s take a closer look at some of these factors.

Age and Beard Growth

Age is an essential factor affecting beard growth. Younger men tend to have faster and fuller beard growth than older men. Testosterone levels decrease with age, leading to slower beard growth. It is not uncommon for men in their 30s to experience a decrease in beard growth compared to their teenage years. However, don’t be discouraged if you’re an older man wanting to grow a beard. With proper care and attention, you can still have a healthy and full beard.

Nutrition and Its Impact on Facial Hair

Nutrition is an essential factor that affects the hair growth cycle. A diet rich in vitamins and minerals promotes healthy hair growth, including facial hair. Biotin, a B vitamin, is particularly important in promoting hair growth and is found in foods such as eggs, nuts, and fish. Ensuring you have a balanced diet with plenty of vitamins and minerals can help promote healthy facial hair growth.

In addition to biotin, other vitamins and minerals that are essential for healthy hair growth include vitamin A, vitamin C, vitamin E, iron, and zinc. These nutrients can be found in foods such as leafy greens, citrus fruits, nuts, and whole grains.

Lifestyle Choices and Their Effects on Beard Growth

Lifestyle choices such as smoking, alcohol consumption, and lack of exercise can all contribute to slower beard growth. Smoking narrows blood vessels, reducing blood flow to hair follicles, while alcohol can dehydrate the body and lead to hair loss. Exercise boosts circulation, delivering more oxygen and nutrients to the hair follicles, promoting healthy hair growth.

Stress is another factor that can affect beard growth. When you’re stressed, your body produces a hormone called cortisol, which can disrupt the hair growth cycle. Finding ways to manage stress, such as through meditation or exercise, can help promote healthy beard growth.

The Bottom Line

While genetics plays a significant role in beard growth speed, there are several other factors that can influence how fast and full your beard grows. By taking care of your body through proper nutrition, exercise, and stress management, you can promote healthy facial hair growth.

How to Measure Beard Growth

If you are curious about how fast your beard is growing, there are several ways to measure beard growth.

Tools for Measuring Beard Length

A digital caliper or micrometer can be used to measure the length of beard hair accurately. Simply use the tool to measure the distance from the skin to the tip of the hair. Alternatively, a ruler or tape measure can be used to get a rough estimate of beard length.

Tracking Your Beard Growth Progress

Keeping a record of your beard growth progress can be a great way to track the rate at which your beard is growing. Take regular photos of your beard, and compare them over time to see the progress you have made.

Tips for Promoting Healthy Beard Growth

To promote healthy beard growth, follow these tips:

Proper Beard Care and Maintenance

Regular beard maintenance is essential to promote healthy growth. Keeping your beard clean and moisturized can help prevent breakage and protect against split ends. Use a beard oil or balm daily to keep your beard soft and hydrated. Trimming your beard regularly can help maintain its shape and promote healthy growth.

Supplements and Vitamins for Beard Growth

Supplements and vitamins can help promote healthy beard growth. Biotin, vitamin A, and omega-3 fatty acids are all supplements that promote hair growth. However, it is essential to speak to a healthcare professional before taking any supplements to ensure they are safe and effective for you.

Beard Growth Products: Do They Work?

There are many beard growth products on the market, from creams to shampoos. However, there is limited scientific evidence to suggest that these products promote beard growth. While they may make the hair appear healthier and softer, they are unlikely to impact hair growth rates. It is essential to be wary of any product claims and to speak to a dermatologist or healthcare professional before using any beard growth products.


In conclusion, several factors contribute to facial hair growth, including genetics, hormones, age, and lifestyle choices. While genetics plays a significant role in beard growth, men can still promote healthy growth through proper care and maintenance. Adopting a healthy lifestyle, eating a balanced diet, and following proper beard care techniques can all promote healthy beard growth. By understanding the science behind facial hair growth and implementing healthy living habits, men can encourage full, healthy beards at their own pace.


Caffeinated Beard Enthusiast, Family Man & Dog Lover. Hailing from the picturesque landscapes of Salt Lake City, Utah, Todd Harris is a devoted husband, loving father, and proud dog owner with a passion for all things coffee and facial hair. His dynamic personality and unmistakable love for life are evident in each of his engaging blog posts.