Why does my beard look so thin? What you can do about it…

When you are growing a beard it can make you feel sad when you looking in the mirror after trying your best to not trim or touch it for a long time only to find that your beard isn’t as think as you want it to be! Rather it looks thin and insignificant. Here we will take a look at why your beard looks so thin and what you can do about it!

Beards look thin for one of two reasons – you may not have reached your full beard growing potential yet or your hair follicle density is low and it causes your beard to look thin when it is in bright light or against light clothing.

If your hair density is the issue there are a couple of things you can do about it: change your diet, do more high-intensity exercise or use a topical treatment like minoxidil on your beard. However, using medication should always be your last resort!

Let’s take a deeper look at the issues surrounding a beard that looks thin and, importantly, what you can do about it! Sometimes it’s the simple things that can make all the difference…

How long until your beard fills in

Up until a certain point, beard growth will increase with age. It is the early years of life – specifically around teenage years – where we can expect the hairs on our face to transform into the capability of forming a beard.

Here are the stages that teenage boys can go through – but remember that each step can vary wildly for each individual depending on genetic and environmental factors.

The mustache forms its own stage in the development of facial hair in adolescent males. Facial hair in males does not always appear in a specific order during puberty and varies among some individuals but may follow this process:

  • During puberty, the first facial hair to appear tends to grow at the corners of the upper lip (age 11–15).
  • It then spreads to form a mustache over the entire upper lip (age 16–17).
  • This is followed by the appearance of hair on the upper part of the cheeks and the area under the lower lip (age 16–18).
  • It eventually spreads to the sides and lower border of the chin and the rest of the lower face to form a full beard (age 17–21).
  • Although this order is commonly seen, it can vary widely, with some facial hair starting from the chin and up towards the sideburns.

As with most human biological processes, this specific order will vary from person to person, depending on genetic heritage and environment – like the ability to live a healthy and active life.

Density or length that matters?

A lot of the time it is not that your hair is not long – it’s that your hair is not growing as dense as you’d like it. A dense beard feels and looks substantial. This is achieved with a close collection of hair follicles and dark hair types.

If you have blonde hair and low hair density you are more than likely going to have a beard that appears thinner than you’d want. Let’s take a look at hair density and the science of working out if your beard will always be thin!

Hair density

In my experience, the chin and mustache areas are the thickest parts of the beard – the cheeks are the least populated parts of my beard. If you are struggling with those parts of your beard – check out my other post – How to grow a beard on your cheeks. Determining your hair density on different parts of your face may be the best way to determine if you can grow a decent beard.

A 2011 study found that you can reliably determine the density of a beard by using a simple photographic method. Take a look at the image from the University of Pennsylvania for examples of the hair density that they found.

How to know if you can grow a beard - hair density.

But don’t worry! There are plenty of bead styles that do not require a think density of hair follicles. Work with what you have and be super confident in your choice. That is always the best way to grow your beard! It makes you more attractive too!

Hair length

The hair on your head grows at varying rates. Scalp, eyelash and brow, and beard hair all grow at different rates. Your eyelash and eyebrow hair grow the slowest and beard hair is the hair that grows the fastest…but, not by much.

According to science, beard hair grows really, really fast. The average daily growth rate of beard hair ranges between 0.3 and 0.5 mm, which is similar to the growth rate of scalp hairs and is about twice as fast as that of eyebrow hairs.

Here are the rates that the hair grows. It’ll probably surprise you just how slow it really is:

Hair typeGrowth rate
Scalp hair0.014 inches/day (0.36 mm/day)
Eyelash/brow growth0.006 inches/day (0.16 mm/day)
Beard hair0.015 inches/day (0.38 mm/day)

If you feel like your beard length is the issue with grwoing athick beard this is what I tell people:

TOP TIP: A tip I often tell new beard growers is to take a picture of your beard in the early stages and every month to track progress only then can you truly say if it has slowed down or not.

If you are reading this blog post it is almost certainly because you have thin hair on your cheeks. This is what you can do about it:

Thin beard on cheeks

Cheeks are the worst offender for many people when it comes to a thin patch of their beard. Cheeks naturally have a thinner hair density than that found on other parts of the face – but there are a couple of things you need to take into account if you think that your beard is thin on the cheek area:

Wait for 12 weeks before deciding that you need an intervention

What a lot of people don’t understand is that you inherit a huge portion of your beard growing potential from your parents. Genetics play a huge role in determining if you are able to grow a beard on your cheeks.

You may have inherited sparse or fine beard hair from your ancestors. That makes you unlucky but there’s no reason that you can’t make the most of your situation!

Every person’s hair growth rate is also different with some growing hair slower than others. Before you decide that you need an intervention for your cheek hair you need to wait at least 12 weeks.

It took my beard about 6 weeks to feel full on the cheeks and I consider myself a good beard grower. Even now, my beard is thinner on the cheeks than it is on my mustache and chin. I’ve come to accept that this is the way my beard grows and it is what makes my beard unique.

If after 12 weeks you are still not happy with the way that your beard hairs are growing on your cheeks you have a few options. The first is to choose a beard style where you don’t have to worry about thin patches. Like every good bit of fashion advice, you should work with your strengths and minimize the attention on the weak parts of your beard…

Thin beard styles

There are a few beard options that have thin hair on any part of your beard. You need to choose a beard style that emphasizes the beard that you HAVE and not the beard that do DO NOT HAVE. There are so many style of facial hair to choose from that a full beard is simply not the right choose for many people!

Here are a few options for you to look at if you have thin parts of your beard:

Balbo Beard Style

This style is characterized by the absence of hair on the cheeks but gives the effect of a full beard by having long hair along the jawline. The jawline is something that most men are able to grow strongly so is a great option for many! Having a strong mustache also really helps with pulling off this style!

Detached Goatee

You can see in this image that the cheeks are very short in length and do not contribute much to the beard. This style is perfect for people with thin hair density on their cheeks and other parts. To pull this one off you need to grow out the soul patch and mustache while keeping the length on the sides low. Buy a good trimmer to maintain the professional look of this one!

Patchy beard

Patchy is normally something that we want to avoid. It’s seen as bad. But this is not always the case. Check out the beard on the man above. Clearly, the cheek area is the weakest part of his growth and he has some connection issues with his mustache.

To pull off this type of beard it’s all about the symmetry that makes this look trendy. Maybe your weak cheek line can become an asset for you!

If changing your style is not right for you and you’d rather focus on boosting the hair density that you have then these are the options open to you:

Boosting testosterone levels

Testosterone is the primary male sex hormone that you learn about in high school. During puberty testosterone is responsible for a load of bodily changes and the one we are interested in is the development of facial hair.

Most males have a very similar level of testosterone in their body. But the men with the thick body hair and beards are more sensitive to the testosterone produced in their bodies. These men are also more likely to go bald because of the increased sensitivity that their body has to the male hormone, testosterone.

Testosterone receptors can be found in hair follicles and can cause hair to grow or not grow. For example, beard hairs are stimulated by testosterone while head hairs can stop growing due to testosterone. It just depends on the sort of hair follicle.

In regards to beard hairs, testosterone can cause it to grow faster and fuller as well as cause hair to grow where it didn’t in the past. It takes a long time for testosterone to have its full effect on the face. So if you are only young, remember that beards look best when people are in their 30’s.

Next, before going for anything extreme like medication or surgery, you can try to boost the testosterone level in your body by natural and not so natural means.


There’s a whole heap of research that shows that exercise is one way that you can get your testosterone levels up! Not all exercise is created equally, however. Make sure your exercise contains these activities:

  1. Sprinting – Studies showed that testosterone levels increased significantly for people who performed a series of very short (but intense) 6-second sprints. The testosterone levels remained high even after the participants recovered from the sprint workout.
  2. Lift Heavy Stuff – Studies have shown that it takes heavy weights to boost testosterone levels. Focus on full-body exercises like squats, deadlifts, benchpresses and free weights at 85 – 95 % of your one-rep max!
  3. Use Long Rest Periods – Longer rest periods (more than 120 seconds) between reps are better than shorter rest periods.
  4. Remember to use your legs – Nothing feels more ‘manly’ than doing upper body exercises, like bicep curls or bench press, but studies have shown that there are significant increases in testosterone when leg and lower body exercises are included in the routine.


Combining your exercise with a diet that will promote testosterone production in your body can help grow your beard.

  1. Ginger – A 2012 study showed that taking a daily ginger supplement for three months increased testosterone levels by 17.7 percent.
  2. Pomegranates – Another study showed that drinking pomegranate juice for 14 days increased the testosterone found in their saliva by 24 percent.
  3. Fortified plant milk – Vitamin D found in plant milk such as almonds, soy, hemp, and flax can increase testosterone levels. You can also get a great boost of vitamin D from the sun too! So remember to get yout and about!
  4. Leafy green vegetables – Leafy greens are full of magnesium – which is an element that has been shown to increase the levels of testosterone in the human body. Eat lots of spinach, kale and swiss chard!
  5. Tuna – An animal-based study showed that fish oil can increase testosterone levels. Because this has not been done in humans you need to take this with a grain of salt!

Maybe the above options have not worked for you or you are not willing to give it a go! These last two options should be used as a last resort:


Medication is an option that you should leave for the last resort. There can be a significant expense for the stuff that works and there’s plenty of other options that will not work and stills costs a load of money!

  • Boron – There are a couple of studies that show that boron increases the testosterone and DHT levels found in the body. In one study people were asked to take 10 mg of boron every day and after 7 days the results were very encouraging.
  • Mucuna Pruriens – There have been two studies that show the testosterone boosting power of this supplement. It has been shown that it increases testosterone levels by about 38 percent.
  • Creatine – There are plenty of scientific reports that show how well creatine boosts the levels of testosterone in the human body. 
  • Ashwagandha aka Ayurveda – There are two studies (here and here) that used human participants with both using 5g per day of ashwagandha root powder for 90 days. Both of the studies found significant increases in testosterone – about 40% and 16% on infertile subjects and about 15% in people with no fertility issues.


The most well-known hair growth treatment is Minoxidil – you can find out more about it in this wiki – click here. It’s found in hair regrowth products such as Rogaine.

The FDA has NOT approved Minoxidil for use on the face and so all of the instructions are for the scalp.

One of my favorite places on the internet, Reddit, has a subreddit where people show their progress pics. check out this from user u/ImBadAtHalo.

Beard growing longer on one side - Minoxidil

You can see that the cheek hairs of his beard are much hairier and denser than when he started. One of the issues is that once you stop using a Minoxidil containing product the hairs will simply stop growing. So you need to be aware of the potential expense and commitment required before embarking on this usage. Besides the fact that you need to do this treatment for a long time – up to a year and a half, you may experience some side effects.

Check out my other blog for a full rundown on the side-effects of Minoxidil.


Your beard looks thin for one of two reasons – you may not have reached your full beard growing potential yet OR your hair follicle density is low and it causes your beard to look thin! If you are under the age of 30 you may still have a bit of growth yet to complete in your beard growing journey.

If your hair density is the issue there are a couple of things you can do about it: change your diet, do more high-intensity exercise or use a topical treatment like minoxidil on your beard. However, using medication should always be your last resort!

The Author

Andy Stapleton

Andy is a writer and YouTuber with a PhD in science. He has written and/or produced videos for Science Alert, COSMOS magazine, and Australia's Science Channel among others. He is an avid beard grower and after many years of growing and trialing different beard styles, he started this blog to share the tips, tricks, and science that he has learned along the way!