Healthy-looking hair starts with understanding what is happening at the scalp level. That is why more salons are investing in smarter consultation tools that go beyond what can be seen with the naked eye. Kérastase K-Scan is one of the most advanced examples of that shift. It is an in-salon smart camera system that combines high-definition imaging, three specialised light modes and AI analysis to help stylists assess the condition of both the scalp and hair more precisely.
At selected Rush salons, currently Bromley, Chichester and Sutton, K-Scan gives you a more informed starting point for their hair journey. Instead of relying on guesswork alone, your stylist can use live scalp imagery and AI-backed analysis to build a more personalised care plan around your real needs, whether that means tackling visible flakes, managing excess oil, responding to signs of irritation or understanding more about density and fibre thickness. The result is a consultation that feels more tailored, more visual and more evidence-led.
What is a K-Scan?
K-Scan is Kérastase’s AI-powered hair and scalp analysis tool, developed in L’Oréal research labs for more than two years and designed for use in salons. It captures close-up scalp and hair images, analyses them using in-house algorithms trained on a dataset of more than 12,000 images, and helps the stylist recommend a bespoke combination of in-salon services and at-home care.
What makes it feel different from a traditional consultation is that it turns the conversation into something you can actually see. Rather than only describing dryness, oiliness or sensitivity, your stylist can show you a close-up view on screen, explain what the scan is highlighting, and use that information to guide the next step including which products are truly best suited for your scalp and hair type. Kérastase also positions K-Scan as a way to track progress over time, not just as a one-off snapshot.
How does K-Scan work?
K-Scan uses a smart camera with 4K resolution and three-light technology: UV light, cross-polarised light and white LED light.
Each mode highlights different scalp or hair characteristics, giving your stylist a fuller picture than standard visual inspection alone.
The scan is then interpreted with AI developed by L’Oréal Advanced Research to support a more accurate and personalised consultation.
UV light: detecting dandruff and porphyrin
The UV mode is used to highlight dandruff and porphyrin. In practical terms, that gives your stylist an extra layer of detail when looking at scalp build-up and scalp condition, especially where concerns may not be obvious in normal lighting.
If you have been struggling with flakes, residue or a scalp that never quite feels balanced, this part of the scan can help move the conversation from assumption to something more visible and specific.
Cross-polarised light: identifying redness and irritation
Cross-polarised light is designed to reveal redness and irritation. This is especially useful when the scalp feels uncomfortable, reactive or sensitive but the cause is not always easy to identify in a standard consultation.
By helping the stylist see beneath the most obvious surface view, K-Scan can support a more informed plan for clients dealing with sensitivity or signs of imbalance.
White LED: assessing oil levels, thickness and density
White LED light focuses on visible surface features such as oiliness, plus hair thickness and density. That makes it useful for clients who feel their roots get greasy quickly, who are worried their hair feels finer than usual, or who simply want a clearer picture of how their scalp environment may be affecting the way their hair behaves day to day.
How the AI analysis fits in
The scan does not replace the stylist, it strengthens the consultation. K-Scan’s AI analyses the captured images using algorithms trained on a large and inclusive dataset, while the stylist interprets those findings in the context of your hair history, current routine and goals.
The scoring is based on four criteria: dandruff, porphyrin, hair fibre diameter and hair density. That combination of technology and professional judgement is what turns the scan into a practical, personalised recommendation rather than just a visual gimmick.
Why K-Scan matters more than a traditional scalp consultation
A traditional consultation still matters, but it is usually based on observation, touch and what the client reports. K-Scan adds a layer of visible evidence. It gives the stylist close-up scalp imagery, AI-assisted analysis and before-and-after comparison tools, which can make the consultation feel more precise and easier for the client to understand.
This is important as hair and scalp issues can be misread. A client might assume they need more moisture when the real issue is build-up, or they may think a general shampoo change will solve the problem when the scalp is showing signs of sensitivity or imbalance. K-Scan helps narrow that gap between what feels wrong and what may actually be going on.
Benefits of getting a K-Scan diagnosis
The biggest benefit of K-Scan is personalisation. Instead of buying products based on trend, packaging or broad hair type labels, you get recommendations shaped by what the scan and your stylist uncover together. That can make your routine feel more focused and potentially more effective.
Additional benefits include:
- A more personalised care plan based on visible scalp and hair analysis, not guesswork alone.
- Earlier visibility of scalp concerns such as dandruff, redness, irritation, oiliness and density changes.
- Better treatment matching because your stylist can recommend in-salon services and homecare around your actual scalp profile.
- Progress tracking over time through repeat scans and before-and-after imagery.
This means stronger confidence in the products you are using as you can understand why. For stylists, it creates a stronger consultation framework that supports evidence-based recommendations rather than generic advice.
What to expect during your K-Scan consultation
A K-Scan consultation is designed to feel informative, not intimidating. Official Kérastase guidance shows the process starting with a conversation about your needs, followed by a single capture scan of the scalp. The single capture, takes around five minutes, and provides a quick yet detailed overview to support personalised hair and scalp recommendations.
Step by step consultation process
Your stylist begins by discussing your concerns and goals, then uses the K-Scan device to part the hair and capture close-up live images of the scalp.
During the scan, you can view the images on a tablet or iPad, which helps make the consultation more transparent and easier to follow.
Analysis on tablet and visual results
Once the images are captured, the analysis is reviewed through the companion app. The stylist can explain what the scan has highlighted and how that relates to your hair and scalp concerns.
One of the strongest parts of the K-Scan experience is that it is visual. You are not simply told what your scalp looks like. You can see it.
Before and after treatment comparison
Kérastase also highlights before-and-after visualisation as a key feature of K-Scan. After an in-salon service, the system can show immediate comparison imagery so you can see how the scalp looks post-treatment. That is useful both for reassurance and for helping you understand the effect of a prescribed service in a more concrete way.
Personalised haircare with K-Scan
K-Scan is most valuable when it leads to action. The point is not just to scan your scalp. It is to use that information to build a more intelligent routine. Kérastase says the system is designed to recommend both in-salon services and at-home products based on the results of the analysis, with the goal of creating an ultra-personalised prescription for each client.
At-home routines prescribed around your needs
If your scan points to scalp build-up, excess oil, visible flakes, irritation or fibre concerns, your stylist can use that information to refine the products you use and how often you use it. This is where K-Scan becomes especially useful for clients who feel they have tried plenty of products but still do not feel fully in control of their scalp or hair health. It brings greater logic to your routine.
In-salon treatments recommended with more precision
Kérastase specifically links K-Scan to professional treatment recommendations, including services such as Fusio-Dose, using the scan to guide a more tailored service plan. This means the in-salon treatment is not chosen in isolation, instead it is chosen with a clearer picture of what the scalp and hair may actually need.
Follow-up scans to track change over time
One of the clearest strengths of K-Scan is its use as a tracking tool. Repeat in-salon diagnosis is not only possible but recommended, because it allows you and your stylists to observe how scalp and hair health evolve and to assess whether the routine is working. That makes K-Scan well suited to longer-term hair goals rather than one-off product advice.
Why choose Rush for your K-Scan experience?
Technology is only as good as the expertise behind it. That’s why K-Scan delivers the best results when used by trained salon professionals who pair advanced analysis with real know-how, practical product guidance, and a personal touch.
At Rush, this means you can enjoy a modern, evidence-based consultation at our selected salons in Bromley, Chichester and Sutton. It’s about making haircare personal from the very start, understanding your scalp and hair, rather than relying on guesswork and giving you a clear reason to book in when you want answers that really matter.
If you’ve ever wondered why your scalp behaves the way it does, or grown tired of the trial-and-error approach with products, K-Scan is the smarter way to begin. At participating Rush salons, your consultation becomes truly tailored, helping your stylist recommend treatments and care based on what your scalp and hair are actually showing at that moment.
Book your K-Scan consultation in Bromley, Chichester or Sutton today and discover a more informed, personalised approach to healthy hair and scalp care.
FAQ’s
What is K-Scan and how does it work?
K-Scan is an in-salon smart camera system from Kérastase that uses 4K imaging, three light modes and AI analysis to assess the condition of the scalp and hair. Your stylist captures close-up images, reviews the results on a tablet, and uses them to recommend a more personalised treatment and homecare routine.
Is K-Scan suitable for all hair types and conditions?
Kérastase says the machine learning algorithm behind K-Scan has been developed to work across all hair types and for both men and women. That means it is designed to support personalised recommendations across different textures, densities and scalp concerns.
K-Scan is designed to assess visible indicators such as dandruff, porphyrin, redness, irritation, oiliness, hair thickness and density. It gives the stylist a more detailed picture of scalp and hair condition, which can then inform more tailored recommendations.
