The honest answer about growing hair faster
You can barely change the growth rate, but you can stop giving length away. That is a less appealing message and it is the only accurate one.
Scalp hair grows about 0.35 millimetres a day, which comes to a centimetre a month. That figure is largely fixed by your genes and your age.
Where it goes wrong in practice is at the bottom. Produce a centimetre a month and lose half a centimetre to broken ends, and you grow at half speed.
So this article is about limiting loss rather than speeding up the factory. That is where the gain lives.
How fast hair actually grows
About a centimetre a month, which works out at roughly twelve to thirteen centimetres a year. No product changes that pace.
Ten centimetres therefore takes about ten months, and going from a shoulder length bob to hip length takes years. That is planning rather than discouragement.
Growth rate varies between people and shifts with age, hormones and health. No shampoo or mask makes a follicle work faster.
So how fast your hair grows depends mostly on who you are rather than on what you buy. What you can do to encourage growth is remove every condition that holds it back.
What a good routine does is keep every centimetre you grow. On long hair that is the difference between growing and standing still.
The growth cycle in three phases
Every follicle works in cycles rather than continuously. That explains why hair stops getting longer at a certain point.
The growing phase lasts two to six years and holds roughly eighty five to ninety percent of your hairs. That phase determines the maximum length your hair can reach.
Then comes a transition of two to three weeks holding one to three percent of your hairs. The follicle shrinks and production stops.
The resting phase lasts about three months and covers five to ten percent of your hairs. At the end of it the hair sheds and the follicle starts again.
Losing fifty to a hundred hairs a day is therefore normal. Anyone with a short growing phase simply will not reach waist length, however well they care for it.
What demonstrably does not work
Three pieces of advice circulate stubbornly and none of them holds up. Worth dropping before you spend money on them.
Cutting more often does not speed growth. The dermatology association puts it bluntly: hair growth occurs below the level of the skin and is not affected by cutting.
A hundred brush strokes a day cause split ends, according to that same association. That old piece of beauty advice is counterproductive.
And supplements without a demonstrated deficiency do not help. Worse, too much selenium or preformed vitamin A is itself linked to hair loss, on which more below.
The same goes for shampoos and hair products promising faster growth. There is no evidence that a shampoo or mask changes the growth rate of the follicle.
Cutting speeds nothing and saves length
This sounds contradictory and is not. Cutting does nothing for production and everything for retention.
The dermatology association puts it this way: regular cutting makes hair grow healthier because it removes the hair that would split. That is exactly why growing out without cutting rarely works.
A split hair does not grow back together. Cosmetic scientists point to friction and torsion during grooming and styling as the cause, and the literature deals almost entirely with prevention.
The split also travels upward. Leave it and you will have to remove more later than if you had cut it in time.
Half a centimetre two or three times a year is usually enough while growing out. Say clearly that you are growing it, and the shape will be built around that.
Breakage is where length is lost
The lowest centimetres of long hair are years old and have survived thousands of treatments. That is where the bill comes due.
Wet hair is the most fragile, which is why the dermatology association advises a wide tooth comb rather than a brush. Start at the ends and work upward instead of dragging from the top down.
Blot your hair with a towel rather than rubbing. Rubbing lifts the cuticle scales, and that is where frizz and breakage begin.
Friction against clothes and pillows does the rest. A looser gathering before sleep saves more over a year than it sounds like.
You recognise breakage by short broken hairs along your parting and by ends that thin out while the length stays the same. That is different from shedding, where the hair comes away root and all.
There is more on care between cuts under hair care.
Heat and chemistry
These are the two factors you can do most about. They also reinforce each other.
Damage starts lower than people assume: in the one dryer study I found, cracks in the cuticle were visible at forty seven degrees, the lowest temperature tested. Straighteners in the research typically run at two hundred degrees.
Never put an iron on wet hair. Water in the shaft turns to steam, expands and blows the fibre apart from within, damage called bubble hair.
The dermatology association keeps straighteners to dry hair, on a low or medium setting and no more than every other day. It also advises one chemical service at a time with two weeks in between.
Avoid anything else that dries out your lengths: hot water, rough towelling and washing daily with a harsh shampoo. Dried out hair breaks sooner than supple hair.
Two heat free days a week is the cheapest measure in this entire article. Anyone growing their hair while straightening daily is working against themselves.
Tight styles and tension
This is the only styling habit that can cause permanent hair loss. It is called traction alopecia and it is largely preventable.
The dermatology association is explicit: when the pulling continues, most people eventually notice that their hair stops growing. Where there was hair you then see shiny, bald skin, and at that stage it cannot grow back. The warning signs are pain from tightly pulled hair, stinging on the scalp and crusts.
Dermatology sources elsewhere point to tight buns, cornrows, dreadlocks, weaves and extensions as causes. Initially the damage is reversible, but prolonged tension destroys the follicles permanently.
The advice is concrete: loosen braids, especially around the hairline, opt for thicker braids and keep them short, since longer hair is heavier and pulls more. Alternate with wearing it loose.
Pain is not a sign the style is set well. Pain is a signal that your follicles are under tension.
Nutrition and deficiencies
Nutrition affects the hair still to grow, not the hair already there. That boundary runs exactly along your scalp.
Severe protein malnutrition causes hair loss, and that is uncontroversial. For the role of individual amino acids the evidence is far weaker.
Iron deficiency is the best supported nutrition related cause, particularly in women with diffuse shedding. On the exact threshold there is no consensus: the literature discusses cut offs of thirty, forty and seventy micrograms per litre of ferritin.
For vitamin D the link with alopecia areata is reasonably supported while results in diffuse shedding are conflicting. For zinc, selenium, vitamin E, folic acid and B12 the evidence is insufficient to screen or supplement.
What else you take in counts as well. Foods such as fish, eggs, pulses, nuts, seeds and green vegetables supply the vitamins and minerals in this list without a tub coming into it, and drinking enough water belongs to that same basis.
In short: see your doctor before you start taking anything. Correcting a deficiency is worthwhile, inventing one is not.
Supplements, honestly
Without a deficiency hair supplements do not work, and too much of some nutrients backfires. That is the summary of the literature, and it applies to shampoos and hair products promising faster growth too.
On biotin the picture is unambiguous. A 2017 review found eighteen reported cases where it helped, and in every one the patiënt had an underlying condition or a genuine deficiency.
Make sure you mention what you take at a blood test, because high doses interfere with laboratory tests including the troponin test for a heart attack. And watch the upper limits: too much selenium or preformed vitamin A is itself linked to hair loss.
The full weighing per nutrient is in the article about hair vitamins. That is also where you find which claims may legally be made about hair in the European Union.
Scalp and massage
A healthy scalp is a reasonable starting point, but the evidence for massage is thinner than its popularity. I would rather be honest about how thin.
The most cited study followed nine healthy men massaging with a device for four minutes a day over twenty four weeks. Hair thickness went from 0.085 to 0.092 millimetres, measured against the untreated other side of the scalp.
Nine participants is too few to build anything on. The only follow up was an online survey in which nearly seventy percent reported stabilisation or regrowth, and the authors themselves write that there was no control group and that self reported data allow no objective assessment.
The idea behind it is that massage improves circulation and therefore the blood supply to the follicle. Plausible, which is something other than demonstrated.
If you want to try it, use your fingertips rather than your nails, light pressure in small circles, two to four minutes.
Massage costs nothing and feels pleasant, so carry on. Just do not expect centimetres from it.
What does count is leaving the scalp alone. Scratching, aggressive scrubbing and built up dry shampoo do more harm than a missed massage.
What does have medical support
For genuine hair loss there are treatments with evidence, and they run through a doctor. That is a different subject from growing faster.
The NHS names finasteride and minoxidil as the main treatments for male pattern baldness. Minoxidil is also used in women, but the same source states plainly that women should not use finasteride, and warns that both work only for as long as they are used.
That is not a detail but the heart of the decision. Stopping means returning to where you started.
Sudden or unusual shedding belongs with a doctor rather than a web shop. Your doctor decides which blood tests make sense, and that is the logical first step.
A stylist can flag but not diagnose. What I do see are the patterns: loss at the hairline from tension, or breakage presenting as shedding.
If you are suddenly shedding
A sudden increase in shedding often has an identifiable cause months earlier. The pattern is called telogen effluvium.
The trigger usually sits about three months before the shedding starts, with a range of one to six months. Fever, severe infection, surgery, childbirth, a crash diet or iron deficiency are known triggers.
Medication can also be the cause, including beta blockers and retinoids, and excess vitamin A falls under that too. One more reason not to dose heavily on your own initiative.
The good news is that it usually resolves by itself. Hair growth generally restarts within six months, although it takes longer before you can see it.
During that period treating your hair gently matters more than any product. Less heat, less tension and no stacked chemistry.
Natural oils on the ends can help with hydration during those months, though that is about suppleness rather than growth. A drop is enough, because more only weighs your hair down.
A realistic plan for a year
This is what I give clients who want to grow their hair. It is dull and it works.
- Have half a centimetre taken off the ends two or three times a year and say you are growing it.
- Detangle with a wide tooth comb on towel dried hair with conditioner in it, from the ends upward.
- Keep two heat free days a week and otherwise work on a low or medium setting.
- Wear your hair loose or loosely tied and treat pain at the hairline as a warning.
- Wash two or three times a week and always condition the lengths.
- Eat varied with enough protein, and if in doubt talk to your doctor before taking anything.
- Do not stack chemical services: one at a time with two weeks in between.
Expect around twelve centimetres in a year if you lose little. That sounds modest and it is more than most people manage.
With Hanna Valiullina trimming the ends is thirty euros and a wash with a trim is thirty five, including the visit to your home. The full list is on the services page, and for advice you can get in touch.
Frequently asked questions about hair growth
How can you make your hair grow faster?
The growth rate itself is barely changeable: scalp hair grows about 0.35 millimetres a day, or one centimetre a month. What you can steer is how much of that growth you lose to breakage along the way, and in practice that is where the length is won.
How long does it take to grow ten centimetres of hair?
About ten months at an average rate of one centimetre a month. Expect longer if your ends are breaking, because then you lose at the bottom what you gain at the top.
Does hair grow faster if you cut it more often?
No, and the American Academy of Dermatology calls this a popular but false myth in as many words. Hair is produced below the skin where scissors never reach, though regular cutting does remove hair that would otherwise split.
Does scalp massage work for hair growth?
The evidence is thin. The best known study followed nine men massaging four minutes a day for twenty four weeks, after which hair thickness went from 0.085 to 0.092 millimetres, which is far too few participants to build on.
How much hair is it normal to lose daily?
Fifty to a hundred hairs a day is normal according to the NHS. Roughly eighty five to ninety percent of your hairs are in the growing phase and the rest are cycling, so daily loss is part of the system.
Which vitamin genuinely helps against hair loss?
Only correcting a demonstrated deficiency, which means a blood test at your doctor first. Without a deficiency there is no good evidence that supplements make hair grow faster or thicker, and too much selenium or vitamin A actually causes hair loss.
Why is my hair suddenly shedding more?
That pattern fits telogen effluvium, where an illness, surgery, childbirth, crash diet or iron deficiency about three months earlier was the trigger. Regrowth usually restarts within six months, though it takes longer before you can see it.
What does trimming the ends at home cost?
With Hanna Valiullina trimming the ends is thirty euros and a wash with a trim is thirty five euros. Both include the visit to your home.
The essentials
The growth rate is fixed at around a centimetre a month and cannot be accelerated. The gain lies entirely in limiting loss at the ends.
Cutting speeds nothing but stops split ends travelling upward and costing more length later. Heat, chemistry, combing wet and tight styles are the four biggest thieves.
Supplements only work with a demonstrated deficiency, and too much selenium or vitamin A actually causes hair loss. Sudden shedding calls for a doctor rather than a web shop.