Detective Hair: Tiny Clues Solve Big Mysteries!
by Dr. Jennifer Hall Rivera on Sep 08, 2025
Did you know that you lose 50–100 hairs every day? Or that God made every hair on your body different? If you could look at your hair under a microscope, you would see some amazing things! Because God created every single hair with special features, we can use these clues to help solve crimes. Hair is truly a microscopic witness!
The Power of Microscopes
Microscopes reveal characteristics that are impossible to see with the naked eye. For example, look at your hair. You can see the color, whether brown, blonde, red, etc. What you cannot see is the patterns within each hair. To see this, we need magnification. Microscopes magnify hair hundreds of times and make it possible to see some really cool things.
Hair Anatomy
God made hair in three parts: the cuticle, the cortex, and the medulla. You can compare these to the parts of a pencil. The cuticle would be the outer protective layer of the pencil. The cortex would be the wood part of the pencil. The medulla is the pencil lead running up the middle. Let’s examine the different types of hair God created 6,000 years ago.
Parts of a pencil and parts of a hair.
(Hair shaft diagram credit: CC BY-SA 4.0, via Wikimedia Commons)
Head Hair
The hair on your head is perfectly designed, not too thick and not too thin. Tiny, dead overlapping scales make up our cuticles. These scales form a microscopic pattern unique to humans called the imbricate pattern, and it looks like a brick wall! Looking at the cuticle under the microscope is a quick way for a forensic scientist to know whether the hair evidence is from a human or an animal.
Microscopic look at human hair (left) and koala hair (right).
(Human hair credit: CC BY-SA 2.0, via Flickr; koala hair credit: CC BY 3.0, via Wikimedia Commons)
The medulla pattern (the pencil lead) is also a valuable clue for forensic scientists. The human hair medulla is not only thinner but also has one of three patterns: absent, fragmented, or continuous. Only under a microscope is the medulla pattern visible. Which pattern did God give you?
Head hair with healthy hair follicles is the most valuable type of hair evidence because of the potential for DNA. DNA information is unique to every human (the exception is identical twins, at 99.99% similar). If a healthy hair follicle is found in the evidence, there is a 99% likelihood that a forensic scientist can create a DNA profile from cellular information.
Daddy’s Beard
If your daddy has a beard, his facial hair is very different from his head hair! Beard hair is much stronger, thicker, and shorter. Under a microscope, it looks rough and bumpy, kind of like tree bark. While head hair grows continuously, beard hair doesn’t. This is because God made it to stop growing after a while. God’s design is perfect!
Eyebrows
Eyebrow hair is curved and pointed at the end. Think of your eyebrow hair like a tiny umbrella that protects your eyes from dust or rain. Under the microscope, you can see the beauty of God’s creation in the very shape of each eyebrow hair, perfectly designed to protect your sensitive eyes.
Like beard hair, eyebrow hair also stops growing at a specific time. Aren’t you glad your eyebrows don’t continuously grow like your head hair? The Lord God thinks of everything.
Armpit Hair
God designed the hair under your armpit for a unique purpose as well. These hairs are flatter than your round head hair. This special design allows them to work like tiny sensors. The sensors tell your brain when someone is touching you and release special scents unique to you.
God’s Amazing Design
God is the perfect engineer, and he designed each hair for a specific function and purpose. Every single hair on your body shows how much God cares about the details of making you! With a simple microscopic examination, forensic scientists can see the type of hair and where the hair came from on the body. These tiny clues help investigators solve big mysteries.
Next time you brush your hair or look in the mirror, remember that you’re looking at some of God’s most incredible tiny creations!
