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Professional Guide: 14 modules (digital manual in Spanish, French and English) UV technology UV hair extensions: how they work Hair compatibility Benefits for professionals Application and removal guide UV extension masterclasses Masterclass: dates and terms Become a distributor UV extension advice More frequently asked questions Buy the kit
EHE LIGHT™ UV extension masterclass: a demonstration in front of a small group of hairdressers

EHE LIGHT™ professional training

UV Hair Extension Masterclasses

Hands-on, in-person training for hairdressers, stylists and salons who want to master UV light extensions: heat-free application, very discreet bond points and careful removal. The location and dates of each session are sent on WhatsApp to those who register.

1In-person day
395nmUV-A light from the device
6-8sCuring per side
Heat-freeNo heated clamp

Good to know

The location of each masterclass is sent on WhatsApp to those who register. Dates, session language and conditions are confirmed with the team before you sign up. No sessions are announced in the UK or Europe at present, and the training awards no certification.

In a few words

What is a UV extension masterclass?

A UV extension masterclass is hands-on training where hair professionals learn to attach natural human hair extensions with an adhesive that hardens under ultraviolet light, without a heated clamp. At EHE LIGHT™ it is held in person, lasts one day, brings together a small group and is practical from the very first minute with the professional kit: a 395 nm device, Clear and Black adhesives and removal solution. You leave knowing how to apply, blend and remove, with a clear idea of how to price this service in your salon.

The technique is simple to explain and demanding to carry out. The adhesive drop should measure 2 to 3 mm, the strand should weigh between 0.5 and 1 g, the bond should sit 1 to 1.5 cm from the scalp, and the light should cure for 6 to 8 seconds on the top and then 6 to 8 seconds underneath, at less than 1 cm. These details make the difference between an invisible bond and one that shows: they are best learnt with your hands, and with someone to correct you.

Close-up of a UV extension bond, very discreet within natural hair
Bond cured with UV light

The method

UV extensions: one method, several names

This technique is sometimes searched for under other names, often coming from social media. Technically, these are extensions attached with UV light: a photopolymerisable resin that changes from liquid to solid when the photo-initiator receives ultraviolet light. It is the same principle used to cure gel nail polish or dental fillings. EHE LIGHT™ is the brand of this system; other brands’ consumables and instructions are not interchangeable.

The EHE LIGHT™ system works at 395 nm, in the long-wavelength UV-A band, with a 5 W device fitted with a protective shield and certified CE, RoHS and FCC. What sets it apart from a generic kit is everything around the light: the adhesive formulated for hair, the removal solution, the protocol and the training. For the technical detail, see UV technology for extensions.

Why now

Why learn UV extensions in 2026

Clients arrive at the salon with Instagram and TikTok videos and ask for “light extensions”. Few salons know how to apply them properly, and that is an opportunity.

01

No heat on the hair

Keratin melts at 160 to 200°C. The UV bond forms at room temperature, so no heated clamp touches the natural hair.

02

Faster in the chair

You don’t wait for keratin to cool and you don’t go back over every bond. A full head can be finished in under 2 hours, against the usual 3 or 4.

03

Minimal bonds

The cured resin is transparent and flexible. It suits fine hair and delicate areas such as the front hairline.

04

Water resistant, with a few precautions

Once cured, the bond is designed to withstand washing, styling and exercise. It is best, however, not to wet it for the first three days, and then to space out washes.

05

Controlled removal

With the removal solution and professional heat at 120°C, the bond softens and comes away without pulling. You can re-apply in the same appointment.

06

Clients who come back

Maintenance takes place every 6 to 8 weeks. It is a repeat service, not a one-off sale.

Programme

The EHE LIGHT™ masterclass programme

Six blocks, from consultation to service menu. You first see a live demonstration, then you practise and we correct every bond.

01

Assessment and preparation

How to assess the density, texture and condition of the hair. Which extension to choose, and why the ideal weight is between 0.5 and 1 g per strand.

02

Precision sectioning

Fine sections, a bond 1 to 1.5 cm from the scalp, and a map of the 6 zones of the head to distribute the volume.

03

UV adhesive and curing

The 2 to 3 mm drop, when to use the Clear or the Black adhesive, and the curing protocol: 6 to 8 seconds on the top and underneath, at less than 1 cm.

04

Invisible blending

Cutting and finishing so that nobody can see where the extension begins, including at the front hairline and on fine hair.

05

Careful removal

Removal solution, activation at 120°C and the EHE LIGHT™ tool. Cleaning off residue and re-applying in the same appointment.

06

Business and pricing

How to add the service to your menu, price guidelines (indicative only), how to present it to the client, and the 6 to 8 week maintenance cycle.

At a glance

The key points of the training

FormatIn person, one hands-on day.
GroupSmall, so that everyone works with the device and receives individual correction.
Who it is forWorking hairdressers, stylists and salon owners. No previous experience with extensions is needed.
EquipmentEHE LIGHT™ professional kit: 395 nm UV device, Clear and Black adhesives, removal solution, removal tool and combs.
What you practiseSectioning, application, curing, blending, removal and re-application.
LocationSent on WhatsApp when you register. No sessions are announced in the UK or Europe at present.
Dates, language and conditionsAnnounced on WhatsApp to those registered for each session, and to be confirmed with the team. No certification is announced.
RegistrationNo commitment. We write to you within 24 hours with the programme and the conditions.
BookingNext masterclass form

Comparison

Masterclass, online course or school: which training should you choose?

Not all extension training serves the same purpose. Here is an honest comparison by type of training, not by provider.

EHE LIGHT™ masterclassOnline courseGeneral extensions courseGeneric kit with a video
Practice with correctionYes, individual and in a small groupNo, you watch but nobody corrects youDepends on the providerNo
UV-specific techniqueIt is the central subjectSometimes, as a moduleOften centred on keratin, tape-ins and micro-ringsBasic instructions
Removal protocolSolution, 120°C and a dedicated toolTheoreticalDepends on the techniqueRarely included
Certified deviceCE, RoHS and FCC, 395 nmNot applicableDepends on the equipmentOften unbranded, with no clear certification
Business and pricingIncluded, with price guidelines (indicative only)VariesVariesNo

Before you pay

How to choose good UV extension training

Seven questions to ask any training provider, ours included.

  1. How much time do I spend practising?If almost everything is demonstration, you will learn to watch, not to apply.
  2. How many people are in each group?In a large group, nobody checks your bonds one by one.
  3. Is removal taught?Badly done removal damages hair. It must be practised, not just explained.
  4. Which device and which adhesive are used?Ask for the wavelength, the certifications and whether the adhesive is designed for hair.
  5. What happens afterwards?The questions arrive with your first client. Check that support is provided after the training.
  6. Does the training explain how to price the service?Knowing how to apply is not enough if you don’t know how to present the service or set its price.
  7. Is the equipment available where you work?If every restock takes weeks to arrive, the service grinds to a halt.
Hair professional making a fine section of the hair before applying a UV extension
Precision sectioning

After the masterclass

Your new UV extension service

With what you have learnt, you can offer full application, volume filling on fine hair, maintenance every 6 to 8 weeks, and removal with re-application. The EHE LIGHT™ professional kit contains everything you use during the training plus 6 months of VIP support, so you are supported when your first client walks in.

To set your prices, see our guide to UV extension prices (indicative only) and the article on how to offer UV extensions in your salon. If you are unsure between several techniques, the UV extensions or keratin comparison helps you explain it to your clients.

Frequently asked questions

Your questions about UV extension masterclasses

How long does the UV extension masterclass last?

It is one hands-on day, in person. During that time you see the full protocol live and practise it with the professional kit, including removal and re-application.

Do I need previous experience with extensions?

No. The training is designed for working hair professionals. If you already know how to section and work with hair, you will learn the UV method step by step.

Where and when are the masterclasses held?

The location of each masterclass is sent on WhatsApp to those who register, together with the dates. This lets us keep groups small and tell you as soon as a new place opens. Dates, language and conditions are confirmed with the team. No sessions are announced in the UK or Europe at present. You can register using the booking form.

How many people are in each group?

Few. Every bond is practised and corrected individually, so a group is full as soon as we can no longer supervise everyone with the device in hand.

Do UV extensions go by other names?

Yes, the technique goes by several names. UV extensions or UV light extensions is the technical description: in every case, an adhesive that cures under ultraviolet light is used. EHE LIGHT™ is the brand of this system; other brands’ consumables and instructions are not interchangeable. What differs from one brand to another is the quality of the device, the adhesive and the removal protocol.

Do you also learn how to remove the extensions?

Yes, and it is one of the most important parts. You practise removal with the EHE LIGHT™ removal solution, activation at 120°C and the specific tool, then re-application in the same appointment.

Is it safe to work with UV light in the salon?

The device works at 395 nm, in long-wavelength UV-A, with a protective shield and CE, RoHS and FCC certification. During the masterclass, we work with gloves, keeping the adhesive off the skin and placing the bond 1 to 1.5 cm from the scalp.

Is this technique suitable for fine hair?

Yes. It is one of the cases where it works best, because the bond is small and light. During the training we look at how to choose the weight of each strand and where to place it so that it doesn’t show.

Can I train my whole team?

Yes. If you have a salon and several people need to offer the service, say so when you register as a salon owner and we will send you the options.

Does registering commit me to anything?

No. We write to you on WhatsApp within 24 hours with the programme and the conditions, and you then decide whether or not to confirm your place.

Next session

Book your place on the next masterclass

A small group, real practice and all the information on WhatsApp. Location, dates, language and conditions are confirmed with the team.