The nail growth plan
Why Your Nails Aren't Growing: The 6-Week Night Routine
Your nails are almost certainly growing. Fingernails grow at an average of about 3.5 mm a month whatever you put on them, and nothing sold in a shop changes that rate — so when nails "stop growing", what is really happening is that they are being lost at the tip faster than they are being gained at the root. That splits the problem in two, and only one half is fixable by a product: you cannot speed the root up, but you can change the quality of what it produces, and you can stop the losses at the other end. Below is the six-week night routine, what each fortnight should look like, and the five things quietly costing you length.
Where a nail is actually made — and where you lose it
A fingernail is built in the matrix, a small pocket of living tissue tucked under the skin at the base of the nail. Cells are made there, flatten, harden into keratin and are pushed forward. By the time any part of the nail is visible past the cuticle it is finished material — dead tissue, as dermatologists put it, with nothing in it to heal. That single fact decides what is possible: nothing applied to the visible nail repairs it, because there is nothing living there to repair.
It also explains why length feels so stubborn. The rate is fixed and it is slow — a measured average of 3.47 mm a month for fingernails, and 1.62 mm for toenails. Over six weeks that is roughly five millimetres of new fingernail, and every break, split or peel takes back more than a week of it in one go. Two people with identical growth rates end up with visibly different nails purely on how much they lose.
So there are two levers, and it is worth being clear about which is which. The first is the quality of what the matrix produces — how well hydrated, how flexible, how evenly formed the new nail is. That is influenced by what reaches the matrix, which is why a nutritive cream is massaged into the nail root rather than painted on the plate. The second is how much of that new nail survives to the fingertip, which is mechanical: water, solvents, filing, knocks.
Almost every disappointing nail routine is one lever pulled and the other ignored. Feeding the root while washing up bare-handed twice a day gets you better nail that breaks anyway. Hardening the tip while the matrix is producing dry, brittle plate gets you a stiffer version of the same problem. The routine below does both, in the order that fits into an actual evening.
The 6-week night routine
Eight steps, and the first one is the reason the other seven get done: this is the rare nail treatment that survives a manicure and a busy week.
Do it at night — and it does not matter whether you are wearing polish
This is the step that makes the routine survivable. A nutritive nail cream is not working on the surface of the plate the way a hardener or a base coat does; it is working on the skin at the base of the nail and on what sits underneath it. So it goes on over a manicure just as happily as over bare nails, and there is no removal, no drying time and no reason to skip it because you are wearing colour.
Use a small amount and massage it in — the massage is part of the dose
Something around a pea for both hands. Work it into the base of each nail and the skin immediately around it for a few seconds per finger. The rubbing is not just spreading: the matrix is fed by blood supply, and a minute of massage across ten fingers is the cheapest thing in this entire routine.
Cover the nail root, not just the nail
MAVALA's instruction for Nailactan is to massage nail and nail root, in that order, and the second half is the one people skip. The root is the part that is alive and the only part any of this can reach. If you find yourself concentrating on the free edge, you are treating the part of the nail that is already finished.
Leave it on overnight
Do not rinse it off, and do not put it on twenty minutes before washing your face. Eight hours of contact is the entire reason this is an evening step rather than a morning one — it is the same logic as a hand cream and cotton gloves, at a much smaller scale.
Run it as a four-to-six week cure, then reassess
This is MAVALA's own framing and it is a sensible one. Six weeks buys you roughly five millimetres of new nail — enough that the band coming out of the cuticle can be compared against the plate ahead of it. Deciding at week two whether a nutritive cream is working is deciding before there is anything to look at.
Protect the free edge while the cure runs
The cream does nothing for the tip, and the tip is where you lose the length the root is making. Keep the nails short for the six weeks, file in one direction rather than sawing back and forth, and if they are splitting or peeling at the edge, harden the free edge separately — that is a different product doing a different job.
Cut the losses at the same time
Gloves for washing up and for anything with a cleaning product in it. A base coat under colour, so removal happens less often. And leave the cuticles alone beyond softening and gently rolling them back — the cuticle is the seal over the matrix, and MAVALA is specific that a cotton-wrapped manicure stick is the tool, not metal, because metal instruments can injure the matrix underneath.
Measure at the base, never at the tip
On day one, look at where the new growth line sits and remember it. Six weeks later, compare the new band against the older plate in front of it: is it smoother, less dry, less inclined to split? That is the only honest measure of whether the cure did anything. Tip length tells you about your washing-up gloves, not about your matrix.
What to expect, a fortnight at a time
Weeks 1–2
The skin changes before the nail does
At about 3.5 mm a month, a fortnight is roughly a millimetre and a half of new nail — a sliver you would need to look for. What does change in this window is everything around it: cuticles stop tearing, hangnails become rarer, and the plate itself often looks smoother and less dull, which is hydration returning to the surface rather than new growth. Take the improvement, but do not read it as the nail being rebuilt.
Weeks 3–4
The first band worth judging
Around three and a half millimetres in, there is finally something to compare. Look at where the new growth meets the older plate — often a subtle change in thickness, or in how the light sits across it. This is also where the mechanical half of the routine starts showing up in the count: if you are still breaking a nail a week, the losses are the problem, not the matrix.
Weeks 5–6
The end of the cure, and the decision
Five millimetres of new nail is, for most people, around a third of the visible plate. That is enough to answer the question honestly: is the new growth better than what came before it? If yes, drop to a maintenance rhythm rather than stopping dead. If the new band looks exactly like the old one, the cause is probably not something a cream reaches — the last section of this guide is about that case.
After six weeks
Maintenance, and the six-month horizon
A fingernail takes roughly six months to be replaced from base to tip, so a six-week cure improves the newest third and leaves the rest to grow out on its own schedule. What changes is the effort: the cream on the nights you remember rather than every night, gloves as a permanent habit, and a base coat under colour. Toenails run on a different clock entirely — at 1.62 mm a month, a big toenail can take a year.
Five things quietly costing you length
None of these will show up as an event. They show up as nails that never seem to get anywhere, which is exactly why they are worth listing.
Washing up and cleaning without gloves
The biggest one, and the least glamorous. A nail plate absorbs water, swells, and shrinks again as it dries; repeat that several times a day and the layers at the free edge work apart. Detergents strip the lipids that slow the process down. Gloves for the sink and for anything with a cleaning product in it will do more for your length over six weeks than any bottle in this article.
Treating nail polish remover as free
Every removal takes something off the plate, and the shorter a manicure lasts the more often you do it. This is the argument for a base coat that most people hear as an upsell: a manicure that holds for a week instead of three days is two fewer solvent exposures a fortnight. Same product, entirely different reason for using it.
Working the cuticles too hard
The cuticle is a seal, not a cosmetic flaw. It sits directly over the matrix, and everything the matrix makes has to pass under it. Cutting cuticles, or pushing them back with a metal tool, risks injuring the tissue that produces the nail — which is why MAVALA specifies softening them first and rolling them back with a cotton-wrapped manicure stick. Damage there shows up weeks later as a ridge or a dent, by which time nobody connects the two.
Buffing ridges flat
Vertical ridges are extremely common and mostly a normal feature of getting older. The instinct is to buff them smooth, and buffing removes layers from a plate that is often already thin. The standard advice is the opposite — moisturise daily and leave the surface alone. If you want them gone visually, a ridge-filling base coat does it cosmetically without taking anything off.
Chasing it with supplements while the mechanical causes carry on
Oral biotin has some evidence behind it for brittle nails specifically, and that is a reasonable conversation to have with a pharmacist. What no supplement does is change the growth rate — that is fixed — and none of them stops a nail catching on a dishwasher rack. If you are going to try one, run it alongside the gloves and the base coat rather than instead of them, and give it the same six weeks before you judge it.
Root, tip, or losses — which one is your problem
Three jobs, and most people are only doing one of them. Work out which half of the problem you actually have before adding anything.
THE ROOT · New growth comes in dry, dull or brittle
a nutritive nail creamThe centre of this routine, and the only item here aimed at the matrix rather than the plate. Essential amino acids — glycine, tyrosine, cysteine and proline — with an anti-dryness effect that reinforces the nail’s elasticity, plus lipids, mineral salts and kerato-balancing vitamins A, B5, B6, C, E, F and H. Massaged into the nail and nail root every night as a four-to-six week cure. 15 ml, which is a great deal more than it looks when a pea does both hands.
THE ROOT · Nails that grow noticeably slowly
a nourishing massage oil for the nail rootNail roots are fed by blood supply, which is the reasoning behind massaging an oil into the skin below the half-moon rather than onto the nail. Wheat germ oil rich in vitamin E, olive oil and sweet almond oil. It pairs with a nutritive cream rather than replacing it — the oil is the massage step, the cream is the overnight one.
THE ROOT · Cuticles that tear, split or lift
a cuticle creamThe most under-rated product in a growth routine, because the cuticle is the seal directly over the matrix. A dry cuticle splits, a split cuticle gets picked at, and picking at it is happening a millimetre above the tissue that makes your nail. Softening it daily removes the whole chain.
THE TIP · Nails split or peel before they gain any length
a penetrating nail hardenerFeeding the root is wasted if the result snaps off at the fingertip. This hardens the free edge — the oldest, most exposed part of the plate — and is applied from the centre of the nail to the tip only, two to three times a week. Different product, different end of the nail, different job. There is a full 12-week routine for this half of the problem.
THE LOSSES · Surface flaking, and polish that never lasts
a fortifying base coatCovers the whole plate rather than the tip, reducing micro-flaking and dehydration at the surface and giving colour something to hold. The growth argument for it is indirect and it is the strongest one: a manicure that lasts is a manicure you strip off less often.
THE LOSSES · Ridges you are tempted to buff away
a ridge-filling base coatWorth being clear that this is cosmetic and not a treatment: it fills and smooths the surface under polish, it does not change what the matrix is producing. That is exactly why it belongs here — it is the alternative to buffing ridges flat, which thins the plate for a result that lasts until the next manicure anyway.
When slow growth is not about your routine
Six weeks of this and no change in the new growth is useful information rather than a failure. It means the limit is somewhere a cream does not reach, and it is worth knowing what the usual candidates are.
Ridges running lengthways, from the cuticle to the tip, are the most common thing people mistake for damage. They are extremely common, they become more pronounced with age, and they are not dangerous. Dry skin can make them more obvious, which is why the standard advice is to moisturise daily rather than to file them away — filing a ridged surface flat costs you thickness you would rather keep.
Ridges running across the nail are a different matter. A single horizontal groove marks a point where the matrix paused — a high fever, a serious illness, chemotherapy, or a knock to the base of the nail. They grow out with everything else, and because growth is slow you can usually work backwards to roughly when it happened. If one appears on several nails at once, that is worth mentioning to a doctor rather than treating.
Toenails are simply on a different clock. At 1.62 mm a month against 3.47 for fingernails, a big toenail can take the better part of a year to replace, and judging a six-week cure on your feet will tell you almost nothing.
And the general rule, stated plainly because a nail care routine is not a diagnosis: new ridges or lines, a change in colour, a change in the shape of the nail, separation from the nail bed, or redness and swelling around it are all things to mention to a doctor or pharmacist rather than to manage with a cream. Nails are one of the places where systemic things show up, and that is a good reason to look at them regularly rather than a reason to worry about them.
The other half of this problem: How to strengthen weak nails — the 12-week plan for splitting and peeling
What to use
Three jobs — the root, the tip, and the losses. Most people are only doing one.
Questions people ask before they start
In almost every case they are — fingernails grow at a measured average of about 3.5 mm a month regardless of what is applied to them. What feels like nails that have stopped growing is nails being lost at the tip as fast as they are gained at the root: splits, peels and breaks each take back more than a week of growth in one go. The useful question is therefore not how to grow them faster but how much you are losing, and the usual culprits are water, cleaning products, frequent polish removal and filing back and forth.
Fingernails average 3.47 mm a month and toenails 1.62 mm, measured in healthy young adults. That works out to roughly 3.5 mm over four weeks and 5 mm over six — and around six months for a fingernail to be fully replaced from base to tip, closer to a year for a big toenail. Those numbers are worth knowing because they set the honest timeline for any nail treatment: anything promising a transformation in a fortnight is describing surface condition, not new nail.
Not the rate itself — that is set by the matrix and no cream, oil or supplement has been shown to move it meaningfully. What can be changed is the quality of the nail the matrix produces, which is what a nutritive cream massaged into the nail root over a four-to-six week cure is for, and how much of that nail survives to the fingertip, which is mechanical. In practice people who "grow their nails" have almost always stopped losing them rather than started growing them faster.
On the nail and, more importantly, on the nail root — the skin at the base of the nail, over the matrix. That is where the only living part of the nail sits and the only part any topical can influence. Massage it in for a few seconds per finger rather than simply spreading it, since the matrix is fed by blood supply, and leave it on overnight. Concentrating on the free edge is treating the part of the nail that is already finished.
No. This is one of the few nail treatments that does not need a bare nail, because it is working on the skin at the base of the nail and the matrix beneath it rather than on the surface of the plate. That matters more than it sounds: a step that survives a manicure is a step you will actually do for six weeks. A hardener is the opposite — it has to reach the nail plate itself, so it goes on bare nails only.
MAVALA describes it as a four-to-six week cure, applied every night. Six weeks is the sensible point to judge it, because that is roughly five millimetres of new nail — enough to compare the band at the base against the older plate ahead of it. After that there is no reason to stop dead; drop to a maintenance rhythm on the nights you remember. Unlike a hardener, there is no over-treating to worry about here: a nutritive cream cannot make a nail too hard.
Ridges running from the cuticle to the tip are very common and become more pronounced with age; they are not dangerous and are not a sign that something is wrong. Dry skin makes them more obvious, which is why daily moisturising is the usual advice and buffing them flat is not — buffing removes layers from a plate that may already be thin. If you want them gone visually rather than physically, a ridge-filling base coat smooths the surface under polish. Ridges running across the nail are a different thing entirely and are worth mentioning to a doctor.
Not the growth rate. There is some published evidence that oral biotin helps brittle nails specifically — nails that split and break — and less breakage does mean more length kept, which is why people experience it as growth. It is a supplement question rather than a nail care one, so a pharmacist is the right person to ask, particularly since high-dose biotin can interfere with some blood tests. Either way it belongs alongside the mechanical basics rather than instead of them.
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