Observ Skin Analysis: What an Imaging Scan Can and Cannot Tell You

The most useful thing I do in a first appointment is often the thing that talks somebody out of what they came in for.

A patient books a course of light-based treatment for the brown patches on her cheeks. She has read about it, she has decided, and the consultation looks like a formality. Then we put her under the imaging and the pattern across her cheekbones is not the discrete, edged sun spots she thinks it is. It is diffuse, symmetrical and mask-shaped, which is what melasma looks like, and melasma treated with light frequently comes back worse. She leaves with a topical plan and a different appointment.

Nothing about that outcome was visible in ordinary consulting-room light. That is what a skin scan is for.

What the imaging shows

Observ is a diagnostic imaging system. The face is photographed under several different light modes, and each one carries information the others do not.

Daylight gives the reference image, the face as anyone would see it across a table.

Cross-polarised light cancels the reflection coming off the surface, so what is left is what is happening below it rather than the shine on top. Vascular patterns and redness that the eye reads as general flushing separate into their component parts here.

UV shows pigment and damage that has not yet surfaced. This is the mode that surprises patients most, because sun exposure laid down in your twenties is visible under it a decade before it appears in the mirror.

Between them, those views tell us where pigment sits, how deep it goes, what the vascular picture underneath looks like, and how the skin’s surface is behaving. That is the material a treatment plan should be built from, and it is the reason a scan changes the recommendation more often than patients expect.

What it changes about the plan

Three things, in my experience, and they are worth being concrete about.

It corrects the diagnosis. Several conditions look brown at arm’s length and behave nothing alike. Melasma, post-inflammatory pigmentation and solar lentigines call for different treatments, and treating the wrong one can set a patient back months. The guide to hyperpigmentation types sets out why.

It changes the order. Most plans are a sequence rather than a single treatment, and the scan usually determines what goes first. A compromised barrier means homecare before energy. Underlying vascularity means the redness before the texture.

It gives you a baseline you can argue with. Skin changes slowly, and your eye adapts to your own face daily, which means you are the worst-placed person to judge whether a course worked. A repeat scan at three or six months against the original is evidence. It also, on occasion, shows that something has not worked, and that is worth knowing before you buy another course of it.

The four things it cannot tell you

This is the section that decides whether the scan is worth £50 to you, so I would rather set the limits out plainly.

It is not a diagnosis of skin cancer, and it must never be treated as one. Imaging of this kind assesses skin quality and pigment distribution. It does not assess whether a lesion is malignant. If you have a mole or lesion you are worried about, that is a different examination with a different device, and the answer needs a dermatologist rather than a skin camera. We run a separate dermatologist-reviewed mole checking service for exactly that reason, and anything urgent belongs with your GP.

It does not tell you what to buy. A scan produces findings. Turning findings into a plan is clinical judgement, and the scan cannot do that part. Which is why the next point matters.

It cannot see below a certain depth. Surface and near-surface information is where this technology is strong. Deeper structural change, fat pad position, bone resorption and the mechanics of laxity are not what it measures. Those are assessed by examination, not by camera.

It cannot tell you how your skin will respond. Fitzpatrick type, medical history, medication and sun behaviour all shape the outcome, and none of them are in the image. The scan informs the conversation. It does not replace it.

How to tell a diagnostic scan from a sales tool

Skin imaging is on almost every clinic menu now, and the machines are broadly similar. What differs is what happens in the ten minutes after the photograph.

Some honest tests. Did the clinician explain what each light mode was showing you, or narrate the screen while reaching for a product list? Did the findings change the recommendation, or confirm the treatment you had already enquired about? Were you told what the images could not tell you? Did anyone say no to anything? Were you given a written plan you could take away and think about, or a package price with a discount attached to signing today?

A scan that ends in the same recommendation every patient gets was not diagnostic. It was a slide deck.

The guide to what a thorough aesthetic consultation involves covers the wider standard we think patients should hold every clinic to, including ours.

The practical detail

Observ skin analysis at The London Road Clinic is from £50. It is a short appointment: no needles, no anaesthetic, no downtime and no aftercare. The one situation where we would not recommend it is significant light sensitivity, since the assessment relies on illuminating the face under several light sources.

Most patients have it once, at the start, and again later to measure progress. It is also the assessment we run before any Lumecca course, because pigmentation is the area where a wrong diagnosis costs the most.

We are at 65 London Road, Newark-on-Trent, NG24 1RZ, on the A46 approach rather than in the town centre, with free parking at the front and evening appointments until 20:00 Monday to Thursday. Patients travel in from across Nottinghamshire and Lincolnshire for treatment courses, and the scan is the sensible first appointment if you are weighing up whether a course is worth the drive at all. Southwell is around 15 minutes; the Southwell clinic page has the route. Lincoln is around 25 minutes down the A46, covered on the Lincoln clinic page.

What you leave with is a plan and a homecare routine, and the homecare is not an afterthought. In-clinic treatment does the visible work in short bursts. What you put on your skin the other 364 days is what holds it, which the homecare between treatments guide covers in detail.

Frequently asked questions