What is a mature hairline?

A mature hairline is the adult position of the male hairline. In childhood the front edge sits on the highest forehead crease and curves downward in the middle; between 18 and 29 it rises by roughly 1 to 1.5 cm in the middle and a little more at the corners, and the curve becomes flat or gently convex. Rassman and colleagues describe it as a normal change driven by age and hormones rather than a disease. On the Norwood scale it is stage 2, which Norwood did not class as balding.

Is a mature hairline the same as a receding hairline?

No. A mature hairline moves once, evenly, and stops, and the hair along it keeps its thickness. A receding hairline keeps moving, deepens at the corners into an M and the hairs at the edge become finer and shorter as the follicles miniaturise. The two look alike for a year or two in the early twenties, which is why the distinction is made over time rather than in a single mirror check.

Does a mature hairline keep receding?

A mature hairline does not. Maturation happens once and the hairline then holds for decades. A hairline that continues to move after it has matured, or that moves again in the late twenties or thirties, is receding, and the thing to check is whether the hair along the edge has changed calibre. Recession can begin from a mature hairline in the same way it can begin from a juvenile one.

Can you get a hair transplant for a mature hairline?

It can be done, and some men have their hairline lowered or the corners filled, but most surgeons are reluctant in young men. A mature hairline is the adult position, and a line transplanted to a juvenile position at 22 has to look right at 45 with whatever has happened behind it in the meantime. The Norwood 2 page gives the graft ranges clinics quote for the corners, and the usual advice is to wait until the pattern is clearly stable.

Do women get a mature hairline?

Yes, differently. Rassman and colleagues report that the upward movement of the female hairline leaves a widow's peak in 81% of women, rather than the opened corners men develop. Temple recession in a woman is not a normal maturation pattern and is worth a dermatologist's opinion, since traction alopecia and frontal fibrosing alopecia both present that way.

Hairline reference

Mature hairline: the adult hairline, and how to tell it from receding

Between 18 and 29 the male hairline rises by about 1 to 1.5 cm and its corners open slightly. That is a mature hairline. It happens once, it keeps its hair thickness, and it is Norwood stage 2, which the scale does not class as balding. Here is how to find yours, what it looks like at each age, and the signs that say it is something else.

Juvenile, mature, receding: the three hairlines

Rassman, Pak and Kim, who studied hairline maturation using yearbook and clinic photographs, describe the childhood hairline as concave, with its central edge sitting on the highest forehead crease, and the adult hairline as convex, the transition happening between 18 and 29. Recession is the third state and the one the other two get mistaken for.

	Juvenile hairline Norwood stage 1	Mature hairline Norwood stage 2	Receding hairline Norwood stage 3 and beyond
Where the front edge sits	On the highest crease of the forehead: raise your eyebrows and the top wrinkle marks the front edge	About 1 to 1.5 cm above the highest crease in the middle, and further above it at the corners	Keeps climbing past the mature position, deepest at the corners
Shape	Concave, curving down into the middle, with rounded corners and no temple recession	Flat or gently convex, with shallow symmetrical corners that turn the childhood curve into a soft V	Corners cut back into an M, and the central forelock narrows as the temples open out
Hair at the edge	Thick terminal hair right to the line	Thick terminal hair, the same calibre as the hair behind it	Finer, shorter, semi-transparent hairs along the edge as follicles miniaturise
When	Childhood to late teens	Settles between 18 and 29, usually once	Any age from the mid teens onward, and it does not settle
Movement	Stable until maturation begins	Moves once, then holds for decades	Progressive, year on year
What is usually done	Nothing. It is the hairline of a boy	Nothing. It is the hairline of an adult man	A treatment decision with a clinician

What a mature hairline looks like

Five things, all checkable in a mirror or, better, in a photograph. The last one carries more weight than the other four together.

1
It sits above the top forehead crease rather than on it. Raise your eyebrows, find the highest wrinkle, and a mature hairline starts a finger-width or so above it in the middle.
2
The corners have opened slightly and evenly. Both temples have moved up by a similar amount, giving a soft V or a straight line rather than the rounded curve of a boy.
3
The hair along the front edge is the same thickness as the hair behind it. Maturation moves the line; it does not thin the hair on it.
4
The crown is untouched. A mature hairline is a hairline event only, and thinning at the whorl points at the pattern rather than at maturation.
5
It has stopped. Compared with a photograph from two or three years ago it is in the same place, which is the single sign that outweighs the other four.

The forehead crease test

The juvenile hairline has a fixed landmark: its central edge sits at the highest wrinkle of the furrowed brow. Raise your eyebrows as far as they go and the top crease is where your hairline was as a boy. A mature hairline sits above that crease, by about a finger's width in the middle and a little more at the corners. A receding hairline has kept going past it.

The test has a limit worth knowing. It tells you where the line is, not whether it is still moving, and position alone cannot separate a settled mature hairline from the first year of recession. That is what the hair calibre at the edge and the old photograph are for. A hairline that sits in the mature position, carries thick hair to the line and matches a photograph from three years ago is mature. One that meets only the first of those three is undecided.

Mature hairline by age

The maturation window is 18 to 29 in the clinical description, with the first changes visible in some boys earlier. What movement means depends on which side of that window you are on.

At 15 to 17

Early for maturation, which Rassman and colleagues place between 18 and 29, though their yearbook series showed the first changes in some boys from the mid teens. A hairline moving at 16 is more often the start of maturation than of pattern loss, but the teens are also the earliest pattern loss can begin, so it is the one age where a dated photograph is worth taking now.

At 18 to 20

The usual start. The corners lift, the line flattens and the change is often noticed suddenly in a photograph. Roughly a quarter of men show the first signs of pattern hair loss before 21, so the question at this age is not whether the hairline has moved but whether the hair on it has changed calibre.

At 21 to 25

The most common age to be asking. Maturation is usually complete or completing, and this is the age at which a mature hairline is most often mistaken for a receding one. The five-sign check below is built for exactly this case.

At 26 to 29

The tail end of the maturation window. A hairline that moves for the first time now can still be maturation, but a hairline that was mature at 24 and is moving again at 28 is not maturing a second time. There is only one maturation.

At 30 and beyond

Maturation is over. Movement at 30 is recession until shown otherwise, and it is worth treating the question seriously because the AAD notes that the earlier treatment is started, the better it works. A stable mature hairline at 30, 40 or 50 is simply a stable hairline.

Mature or receding? The five-sign check

The same five questions a clinician works through, in order of how much each one tells you. It runs in your browser and nothing is sent anywhere.

Answer five questions about what you can actually see. Nothing is saved or sent anywhere.

0 / 5

1. Compare a photo of yourself from two or three years ago. Has the hairline moved since?
2. Look closely at the hairs along the front edge, in good light. How do they compare with the hair further back?
3. How has the front edge changed shape?
4. Is there any thinning at the crown, the whorl at the back of the head?
5. When did you first notice the change?

If it turns out to be receding

Then it is the start of androgenetic alopecia rather than a mature hairline, and the useful questions change: how far along it is, how fast it is moving, and what is usually done at that stage. The receding hairline page covers the stages, the conditions that mimic recession and what people at each stage typically do. The Norwood stage finder places it on the scale, and the Norwood 2 and Norwood 3 pages describe the two stages a hairline in question is usually between.

The one thing no page can do is look at the follicles. A dermatologist or hair restoration surgeon can examine the edge under magnification and see whether the hairs are miniaturising, which settles the question in a way that a mirror, a measurement and a checklist cannot.

Mature hairline: frequently asked questions

What is a mature hairline?: A mature hairline is the adult position of the male hairline. In childhood the front edge sits on the highest forehead crease and curves downward in the middle; between 18 and 29 it rises by roughly 1 to 1.5 cm in the middle and a little more at the corners, and the curve becomes flat or gently convex. Rassman and colleagues describe it as a normal change driven by age and hormones rather than a disease. On the Norwood scale it is stage 2, which Norwood did not class as balding.
Is a mature hairline the same as a receding hairline?: No. A mature hairline moves once, evenly, and stops, and the hair along it keeps its thickness. A receding hairline keeps moving, deepens at the corners into an M and the hairs at the edge become finer and shorter as the follicles miniaturise. The two look alike for a year or two in the early twenties, which is why the distinction is made over time rather than in a single mirror check.
Does a mature hairline keep receding?: A mature hairline does not. Maturation happens once and the hairline then holds for decades. A hairline that continues to move after it has matured, or that moves again in the late twenties or thirties, is receding, and the thing to check is whether the hair along the edge has changed calibre. Recession can begin from a mature hairline in the same way it can begin from a juvenile one.
Can you get a hair transplant for a mature hairline?: It can be done, and some men have their hairline lowered or the corners filled, but most surgeons are reluctant in young men. A mature hairline is the adult position, and a line transplanted to a juvenile position at 22 has to look right at 45 with whatever has happened behind it in the meantime. The Norwood 2 page gives the graft ranges clinics quote for the corners, and the usual advice is to wait until the pattern is clearly stable.
Do women get a mature hairline?: Yes, differently. Rassman and colleagues report that the upward movement of the female hairline leaves a widow's peak in 81% of women, rather than the opened corners men develop. Temple recession in a woman is not a normal maturation pattern and is worth a dermatologist's opinion, since traction alopecia and frontal fibrosing alopecia both present that way.

Sources

Juvenile and mature hairline shape, the crease landmark, the 18 to 29 window and the figure for women from Rassman, Pak and Kim 2013. Norwood types I and II as non-balding from Norwood 1975. Miniaturisation, prevalence and the case for early treatment from the ISHRS and the AAD.

How Bald is an information site, not a clinic. Nothing here is medical advice and we do not sell procedures or medication. Figures are estimates with sources listed on our methodology page. Talk to a dermatologist or hair restoration surgeon before treatment.