Does Cutting Your Hair Make It Grow Faster? Hair Growth Myths
No. Cutting your hair does not make it grow faster. Hair grows from the follicle under the skin, and the part your barber cuts is dead keratin with no connection to the growth process. Snipping the ends cannot send a signal back to the root. What regular trims do is keep the ends healthy and the shape tidy, which means hair you are growing out looks better at every stage and breaks less, so you keep more of the length you grow. That is the real reason barbers recommend trims while growing out, and it is a different thing from making hair grow faster.
How hair actually grows
Each hair grows from a follicle in the skin, where living cells divide and push the shaft upwards. Once the hair emerges, it is no longer alive. That is why a haircut does not hurt and why nothing you do to the length changes what happens at the root.
Follicles go through a cycle: a long growing phase, a short transition, and a resting phase after which the hair sheds and a new one starts. On the scalp the growing phase lasts years, which is why head hair can grow long. On the arms or eyebrows it is much shorter, so those hairs stop at a fixed length. Scalp hair is commonly said to grow roughly a centimetre a month, though it varies between people, with age and with general health.
A few things genuinely influence growth: genetics, age, hormones, nutrition, some medical conditions and some medicines. Haircuts are not on the list.
Where the myth comes from
It is easy to see why people believe it. A few observations seem to support it:
- Hair looks longer after a trim. Removing frayed, thin ends makes the remaining length look fuller and hang straighter, so it can appear longer than before.
- You notice regrowth more on short hair. A centimetre of growth on a skin fade is obvious within a week or two. The same centimetre on shoulder-length hair is invisible.
- Healthy ends do not snap off. If split ends are left, they can travel up the shaft and break. Someone who never trims may find their hair seems stuck at one length because it is breaking as fast as it grows.
That last point is where the advice “trim to grow” makes sense, as long as you understand what it means: you are protecting length, not speeding it up.
Other hair growth myths, sorted
| Belief | Verdict |
|---|---|
| Shaving makes hair grow back thicker or darker | False. A shaved hair has a blunt tip instead of a tapered one, so stubble feels coarser, and new growth has not been lightened by sun yet. The follicle is unchanged. |
| Shaving your head will make it grow back fuller | False, for the same reason. It can make thinning less obvious, which is a different benefit. |
| Brushing 100 strokes a day stimulates growth | No good evidence. Over-brushing can cause breakage. |
| Wearing a cap causes baldness | Not in normal use. See our post on caps and hair loss. |
| Washing every day makes hair fall out | Hairs that come out in the shower were already shedding. Washing just collects them. |
| Scalp massage makes hair grow | Pleasant, and fine to do. The evidence that it meaningfully changes growth is limited. |
| Stress can affect hair | True in some cases. A shock, illness or major stress can trigger temporary shedding a few months later. |
The shaving point applies to beards too. Shaving more often in the hope of a thicker beard does not work; patience and the right shape do more. Our post on growing a beard through the first three months goes into that.
What does help hair you are growing out
If you want longer hair, the job is to protect the length you grow and keep it looking deliberate on the way. In practice:
- Keep appointments, but ask for a shape, not a cut. Tell the barber you are growing it out. They will take the minimum off the length and focus on the sides, back and neckline so it looks tidy. Every visit at Highgate Cuts starts with an assessment, so this is the moment to say it.
- Space the visits out. Someone growing out might come every eight to ten weeks rather than every four. Our guide to how often to get a haircut breaks this down by style.
- Be gentler. Pat dry instead of rubbing, use a wide-tooth comb on wet hair, and keep high heat from the dryer to a minimum.
- Choose products that do not need to be scrubbed out. Heavy waxes lead to aggressive washing, which roughens the hair over time.
- Eat reasonably. Severe dieting and nutritional deficiencies can affect hair. A balanced diet is enough for most people; supplements are only useful if you are actually deficient.
The awkward middle stage, where hair is too long to be short and too short to be long, is where most people give up and book a clipper cut. A barber can shape each stage so it looks intentional. Our barbers on Archway Road do this routinely; there is also a guide to medium-length styles for men growing it out.
When hair is not growing the way it used to
If your hair seems to be thinning, shedding more than usual, or coming out in patches, cutting it differently will not change the cause. Barbers often notice changes first because we see the scalp from angles you cannot. The NHS page on hair loss explains the common types and when to see a GP, for example if hair is falling out in clumps, you have bald patches, or your scalp is itchy, burning or sore. Our post on noticing hair loss covers what a barber looks for.
A quick myth-check before you act on any advice
- Does it claim to change the follicle by doing something to the hair shaft? Be sceptical.
- Is the “evidence” before and after photos alone? Lighting and styling change everything.
- Is it sold by the person making the claim? Look for independent sources.
- Does the NHS or a dermatologist say the same? If not, treat it as unproven.
Questions we get asked
Will a trim help my hair grow longer?
It helps you keep length by stopping split ends from breaking the hair higher up. It does not change the growth rate.
Does hair grow faster in summer?
You may hear this, and some people feel it does, but the difference, if any, is small. It is not something to plan a haircut schedule around.
Should I stop getting haircuts to grow my hair out?
Not entirely. Skipping the barber completely usually means a messy outline and damaged ends. Ask for light shaping every couple of months instead.
Can a barber tell if my hair is thinning?
Often, yes, and a good one will mention it tactfully. They cannot diagnose a cause; that is a GP’s job.
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