A course of Ultracel Q+ HIFU holds for about 12 to 18 months, and almost none of that result is visible in the first month. If you are booking it for an event in three weeks, book something else.
HIFU stands for high intensity focused ultrasound. At Halcyon Medispa, the aesthetic clinic on Hinde Street in Marylebone, London, we use the Ultracel Q+ system, which pairs focused ultrasound with radiofrequency in one handpiece. This guide covers how long the result actually lasts, how many sessions it takes, what the first three months feel like, who it suits, and the cases where it is the wrong treatment and we say so.
The short answer: focused ultrasound is delivered to set depths under the skin, heating small points of tissue enough to trigger a repair response. The tissue contracts a little at once and then rebuilds collagen over the following months. Expect almost nothing for two to three weeks, visible firming from about six to eight weeks, and the settled result at around three months after your last session. A course is usually two to three sessions, three to four months apart, and the result typically lasts 12 to 18 months. Treatment takes 20 to 30 minutes, needs no anaesthetic, and Ultracel Q+ starts from GBP 299.
In this guide:
- What HIFU actually does under the skin
- How long HIFU lasts, and what "lasts" means
- The first three months, week by week
- How many sessions, and why the gap matters
- Who HIFU suits, and who it does not
- HIFU against the other tightening options here
- What HIFU will not do
- Preparing for treatment
- Afterwards, side effects and what to watch
- What it costs in London
- Frequently asked questions
What HIFU actually does under the skin
Most skin treatments work on the surface and travel down. A peel, a laser resurfacing, microneedling: they all begin at the top. Focused ultrasound does the opposite. The energy passes through the surface without doing anything to it and releases its heat at a set depth below, in the supporting tissue that holds the face up.
At that depth the heat is enough to cause tiny, controlled points of thermal injury. Two things follow. The treated tissue contracts slightly straight away, which is the small tightening some people feel in the first week. Then the body repairs those points, and repair in the dermis means new collagen. That second process is slow, and it is where the real result comes from.
The Ultracel Q+ handpiece adds radiofrequency alongside the ultrasound, which works at a shallower level and addresses skin quality and fine lines rather than deep support. That is the reason a session covers both the sag and the crepiness rather than one or the other. You can read more about the equipment we use on the technology page.
The energy skips the surface entirely. Everything you eventually see is your own collagen answering it.
How long HIFU lasts, and what that word is doing
The figure we give patients at Halcyon Medispa is 12 to 18 months from a completed course. It is worth being precise about what that means, because the word lasting suggests something sitting in your face and slowly leaving, which is what happens with a hyaluronic acid filler. Nothing is left behind after HIFU. There is no gel, no implant and nothing to dissolve.
What you have at the end of a course is a quantity of new collagen that was not there before. From the day it forms it begins ageing at the same rate as the rest of your collagen. So the result does not switch off at month 13. It fades, gradually, and the point at which someone says it has gone tends to fall somewhere between a year and eighteen months depending on age, sun exposure, smoking and how much laxity there was to begin with.
Three things shorten it in practice: heavy unprotected sun, smoking, and starting from significant laxity rather than early laxity. Two things lengthen it: repeating the course roughly annually before the result has fully gone, and daily sunscreen, which is dull advice and also the single most effective thing on this page.
The first three months, week by week
This is the part most people are not told, and it is the reason HIFU gets unfairly poor reviews from patients who judged it at week two.
| When | What is happening | What you will see |
|---|---|---|
| Day of treatment | Tissue contracts slightly from the heat | Mild redness for an hour or two, occasional light swelling. Some people see a small immediate tightening |
| Week 1 | Swelling settles, repair begins | Any early tightening softens. This is normal and not the treatment failing |
| Weeks 2 to 4 | Collagen synthesis under way, nothing visible on the surface | Little to nothing. This is the stage people wrongly judge it on |
| Weeks 6 to 8 | New collagen maturing | First real change. Usually the jawline reads cleaner in photographs before you notice it in the mirror |
| Month 3 | Result settled from that session | The firming you were treated for. Time the next session in the course from here |
Take a photograph on the day of treatment, in daylight, from straight on and from each side, and put it somewhere you will find it. Faces change too slowly for memory to be a fair judge, and week eight against day zero is the comparison that matters.
How many sessions, and why the gap matters
A standard course at our clinic is two to three sessions, three to four months apart. Each session takes 20 to 30 minutes and needs no anaesthetic.
The gap is not a scheduling convenience. Collagen laid down after a session is still organising itself for months, and treating over the top of it before it has matured spends money without buying result. Anyone offering a course of six weekly HIFU sessions is describing a payment plan rather than a treatment protocol.
Whether you need two or three depends on how much laxity there was on day one, which is a judgement made at the consultation rather than something you can decide from a website. Some people with early laxity in their thirties do well on one session repeated annually.
Who HIFU suits, and who it does not
The people who get the most from it have mild to moderate laxity and skin that still has some bounce. In practice that is a large share of people between their mid thirties and late fifties who can see the jawline blurring, feel the neck starting to soften, or have a small pocket under the chin that persists whatever their weight does.
- A jawline that has lost its edge without there being loose skin to pinch
- Early sagging or skin laxity in the lower face
- An ageing neck where the skin is crepey rather than genuinely slack
- A modest pocket of fat under the chin with good overlying skin quality
- Anyone who cannot take downtime, since there is none
It is the wrong treatment if there is real skin excess. If skin can be lifted away from the jaw and held, the problem is quantity of skin, and no energy device removes skin. It is also the wrong treatment for someone in their late twenties with firm skin who has been sold it as prevention. There is nothing to tighten, and the money is better spent on sunscreen and skin quality work.
If volume rather than support has gone, the answer is different again. A face that has flattened through the cheeks and temples needs replacing rather than tightening, which is what Sculptra and Radiesse are for. We wrote about that timeline in how Sculptra works.
HIFU against the other tightening options here
| Treatment | How it works | Where it fits | Result appears | Roughly how long |
|---|---|---|---|---|
| Ultracel Q+ HIFU | Focused ultrasound at depth plus radiofrequency nearer the surface | Face, neck and decolletage. Jawline and submental laxity | 6 to 8 weeks, settling by 3 months | 12 to 18 months |
| Exion RF | Radiofrequency with targeted energy for fat reduction and firming | Body areas rather than the face | Progressive over a course | Maintained with repeat sessions |
| Endospheres | Compressive microvibration on the surface | Cellulite, puffiness, circulation and lymphatic drainage | Immediately, cumulative over a course | Short, maintenance based |
| Profhilo | Stabilised hyaluronic acid spread through the skin | Skin quality, crepiness and hydration, not lift | 4 to 8 weeks | Around 6 months |
| Sculptra | Poly-L-lactic acid stimulating your own collagen | Lost facial volume and support | 6 weeks to 6 months | Around 2 years |
| Dermapen microneedling | Controlled surface injury driving skin renewal | Texture, scarring and fine lines | 4 to 6 weeks per session | Maintenance based |
These are not competitors so much as answers to different questions. Plenty of treatment plans here run two of them: HIFU for the support, a skin quality treatment for the surface, and anti-wrinkle injections for the movement lines that neither of the other two touches.
What HIFU will not do
- It will not remove loose skin. After significant weight loss, or where skin lifts away from the jaw, this is a surgical question and we will tell you so at consultation.
- It is not a facelift and does not last like one. Anyone selling it as a non-surgical facelift is selling the phrase, not the result.
- It will not replace lost volume. Tightening a face that has deflated can make it look tighter and still tired.
- It does not treat pigmentation, redness or texture. Those live with peels, laser and facials.
- It will not stop you ageing. It resets a starting point. The clock runs from there at the usual speed.
Preparing for treatment
- Avoid blood thinning medication and supplements beforehand, unless they are prescribed, in which case tell us rather than stopping them.
- Come with clean skin and no makeup on the day.
- Drink water normally in the days before. Well hydrated tissue is more comfortable to treat.
- Use daily sunscreen in the run up, and keep using it afterwards. It protects the collagen you are paying for.
- Tell your practitioner about every medication and medical condition, including anything recent. This is the step people skip and it is the one that matters.
Afterwards, side effects and what to watch
Expect brief redness, occasionally mild swelling, and tenderness to the touch for a few days, most often along the jaw where the bone sits close to the surface. Light bruising is possible and uncommon. There is no downtime and nothing to avoid beyond the obvious: no unprotected sun on a freshly treated face.
Ring the clinic on 020 7486 3225 if you get anything you were not warned about, particularly swelling that is worsening after 48 hours rather than settling, or any numbness or asymmetry of movement. These are rare with focused ultrasound and they are still worth a call rather than a wait.
What Ultracel Q+ costs in London
Ultracel Q+ starts from GBP 299 at Halcyon Medispa. The consultation is GBP 150, redeemable in full against treatment, so if you go ahead the consultation costs you nothing on top. Full and current figures sit on the treatment prices page, and packages are on packages and offers.
Price per session is the wrong comparison to make between clinics. A course of two well placed sessions at a higher price beats six cheap ones delivered at settings too low to do anything, and the second is a genuinely common story among people who come to us saying HIFU did nothing for them.
Frequently asked questions
How long does HIFU last?
At Halcyon Medispa the result from a course of Ultracel Q+ typically holds for 12 to 18 months. That is not the treatment wearing off like a filler dissolving. It is your own collagen continuing to age at its normal rate from a better starting point, which is why people who repeat the course roughly once a year tend to hold their result rather than climb back up from the bottom.
How many HIFU sessions will I need?
The usual course at our Marylebone clinic is two to three sessions spaced three to four months apart. The gap is deliberate. Collagen laid down after one session is still maturing when the next is given, so treating sooner adds cost without adding result.
How soon will I see anything after HIFU?
Very little in the first fortnight. Some people notice a mild tightening in the first week that then settles, which is swelling rather than result. The change worth judging appears from around six to eight weeks and builds to about three months after the final session.
Does HIFU hurt?
Most people describe brief heat or a prickling sensation as each line of energy is delivered, strongest over bone along the jaw and brow. No anaesthetic is used and the session runs 20 to 30 minutes. If you find the jawline sharp, say so during treatment rather than afterwards, because the settings can be adjusted.
Is there any downtime after HIFU?
No. Skin is often pink for an hour or two and can feel slightly tender to press for a few days. You can wear makeup, go back to work and train as normal the same day.
How much does Ultracel Q+ cost in London?
Ultracel Q+ starts from GBP 299 at Halcyon Medispa. The consultation is GBP 150 and is redeemable in full against the cost of treatment, so a consultation that ends in a booking costs nothing extra. Current figures are on our prices page.
Can HIFU replace a facelift?
No, and any clinic suggesting otherwise is overselling it. HIFU tightens tissue that still has elasticity. Where there is genuine skin excess, particularly after significant weight loss or in the lower face in the seventies, surgery is the treatment that does what the patient is actually asking for.
Can HIFU be combined with injectables?
Yes. It is common to combine Ultracel Q+ with anti-wrinkle injections or with a collagen stimulator such as Sculptra, because they address different problems: one lifts and firms, one softens movement lines, one restores lost volume. Sequencing is agreed at consultation.
Is HIFU safe on darker skin tones?
Focused ultrasound passes through the surface and releases its energy below it rather than being absorbed by pigment in the epidermis, so it does not carry the pigmentation risk that surface laser and light treatments carry on richer skin tones. Your practitioner should still take a full history at consultation.
What areas can Ultracel Q+ treat?
Face, neck and decolletage, most often the jawline, the lower face, under the chin and the neck. It is also used for a pocket of submental fat under the chin, where the fat is modest and the skin has held its quality.
Talking it through
Whether HIFU is right for your face is a five minute conversation in front of a mirror, not a decision to make from a page. Dr Osman Bashir Tahir and the team at Halcyon Medispa, 2 Hinde Street, Marylebone, London W1U 2AZ, will tell you if tightening is the answer, if it is volume you have lost, or if you would be better served by a surgeon. If you want to know what a first visit involves, our patient journey page walks through it, and this piece explains how an aesthetic clinic differs from a salon.
