Why Your Hair Gets Curlier as It Grows Longer
Your hair is not changing type as it grows. The curl was there all along. A curl needs length to show itself: each strand has to be long enough to complete at least one full turn of its natural pattern. Cut short, a curly or wavy strand is just a slightly bent stub, so it looks straight or simply unruly. As it grows past a few centimetres, the strands have room to form loops, neighbouring hairs start to clump together into visible curls, and suddenly you have a pattern you never knew about. At much greater lengths the weight can pull curls looser again, which is why curl often looks strongest at a medium length.
It surprises a lot of men who have worn short cuts since school. Here is what is going on, and how to work with it.
Where curl comes from
The shape of a hair is set by the follicle it grows from. A round, straight follicle tends to produce straight hair. A follicle that is more oval or curved in the skin tends to produce a strand that grows with a twist. The result is a pattern that repeats along the whole length of the hair, like a spring. Cutting the hair does not change the follicle, so it does not change the pattern. It only changes how much of the spring you can see.
That is also why the common idea that cutting hair changes how it grows does not hold up. We covered the wider version of that in hair growth myths.
Why short hair hides the curl
Not enough length to complete a turn
Think of a coiled spring cut into short pieces. A one-centimetre piece is barely curved. A ten-centimetre piece is obviously a coil. Hair works the same way. The tighter your natural pattern, the less length it needs to show; a loose wave may need several centimetres before you see it at all.
Clumping needs company
Visible curls are usually groups of hairs that twist together. Short hair stands more independently, so it reads as texture or frizz rather than defined curls. Many men with what they have always called “difficult” or “frizzy” short hair are actually describing curl that has not got enough length to clump.
Clippers remove the evidence
If the sides have been clippered for years, you have only ever seen the hair at a length where any pattern is invisible.
Why very long hair can loosen again
Hair has weight. As length increases, the weight of the lengths below pulls on the curls above and stretches them out, especially near the roots. Fine hair loosens more easily than coarse hair. So a man with a loose wave may find it peaks around chin length and drops into gentle bends at shoulder length, while someone with a tight curl will see far less change.
The ends also matter. The oldest part of a long strand has been washed, brushed and exposed to weather for months or years. Worn, dry ends hold a curl less well than healthy ones, which is one reason a trim of damaged ends can bring definition back.
Other things that change how curly your hair looks
- Humidity. Curly hair responds to moisture in the air. A damp London morning often makes curls tighter and frizzier than a dry, heated office.
- How you dry it. Rubbing with a towel breaks clumps apart. Blotting and letting it dry, or using a diffuser, keeps them together.
- Brushing when dry. Brushing dry curly hair separates every strand and turns curls into a cloud.
- Products and washing. Harsh cleansing and no conditioner leave curly hair dry, and dry curls frizz. Our guide to curly hair care for men covers a routine that keeps definition.
- Changes over a lifetime. Some people notice their pattern change over the years, for example around puberty. That is the follicle, not the length. If you notice sudden changes in your hair or scalp alongside shedding or other symptoms, it is worth mentioning to your GP.
What this means for your next haircut
If you are growing your hair and the curl is appearing, the way it is cut matters more than ever. A few principles we would expect any barber to discuss at the assessment that starts each visit:
- Cut it dry, or at least check it dry. Curly hair shrinks as it dries, sometimes a lot. A length that looks right wet can spring up much shorter.
- Leave more length than you think. For the reasons above, taking off too much can remove the curl you were growing for.
- Shape for the curl, not against it. Curls sit where they want to sit. A good cut follows the natural clumps rather than forcing a straight-hair shape onto them.
- Remove bulk carefully. Thinning curly hair the wrong way creates short pieces that frizz. Point cutting or careful scissor work keeps the shape.
- Think about the sides. Short clippered sides with a curly top is a great look, but the transition needs care so the curl does not sit like a hat.
A scissor cut on top is usually the right tool. You can read more about the cuts and services offered by the barbers at The Highgate House on the barber page.
A quick test: how much curl do you have?
If you are curious what your hair would do with more length, try this after your next wash:
- Apply a little conditioner or curl cream to damp hair on top.
- Do not brush or towel-rub it. Blot gently.
- Scrunch the hair upwards with your hands a few times.
- Leave it to dry without touching it.
If you see clear bends, waves or small curls forming even at a short length, there is more pattern there than your current cut shows.
Living with the awkward stage
Curly hair growing out has a stage where it goes outwards rather than down. It is normal and it passes. A barber can shape it on the way through so it grows as a rounded form rather than a triangle, and keeping the neckline and around the ears tidy makes a huge difference. Our post on growing your hair out has a month-by-month view. When you are ready for a tidy-up, book a cut with the Highgate Cuts team and bring a photo of the length you are aiming for.
Questions we get asked
Why does my hair go curly when it gets long?
The curl was always there. Longer strands have room to complete their natural pattern and clump together into visible curls.
Will cutting my hair short make it straight?
It will look straighter, because the curl has no length to show, but the hair itself has not changed.
Why are the back and sides curlier than the top?
Different areas of the scalp often have slightly different patterns, and the top usually carries more weight. Both are normal.
Can a haircut make my hair curlier?
A cut cannot change the pattern, but removing weight and damaged ends, and shaping with the curl, can make it look more defined.
Book with The Highgate House
Ready for a proper cut? Email us at [email protected] with the service and the day that suits you, and we will come back to you with times.
Visit The Highgate House · The barbers
The Highgate House, Archway Road, Highgate, London N6.
