Learn the Technique.
Then Name Your Price.
Two or three days with Eva Spiess. Build a 3D injected wig, topper or hairpiece from scratch on the Inject Machine Plus, and offer a service almost nobody in your market can.
USA · Canada · Australia, from November 2026
This class is for a specific kind of hairdresser.
You will know within ten seconds.
We would rather you close this page now than sit through three days that were never meant for you. So here it is plainly.
This is for you if
- You want a seminar that pays for itself within days when you apply it properly
- You already buy in wigs, toppers or hairpieces and hand most of the margin to a supplier
- Clients ask you for medical hair loss solutions and you turn that work away or outsource it
- You want a service your competitors physically cannot copy, not another certificate everyone has
- You are prepared to spend two or three full days with your hands on the work, not watching a demo
- You are building a business, not collecting a hobby skill
- You are a wigmaker, salon owner, session stylist, beauty professional, or a complete beginner starting from zero
This is not for you if
- You are looking for a product launch or a goodie bag
- You want theory. You will be building from the first morning
- You are not willing to charge properly for the work once you can do it
The window on this is open, and narrow.
Techniques stay valuable while they are rare. The method is new, so the number of professionals anywhere who can build an injected piece to this standard is still small enough to count. That will not be true in five years.
First tour of your region.
Eva has taught this method across 38 countries. This is the first time it has been brought to the USA, Canada and Australia, starting November 2026, with a limited number of dates.
Demand is outrunning supply.
Up to half of all men and women experience pattern hair loss, and there are nowhere near enough makers able to serve them.
Small rooms fill fast.
These are hands-on classes with a hard cap on numbers, because you cannot teach injection work to a crowd. When a city sells out, the next date is the next tour, not next month.
The Injected
Hair Masterclass
With Eva Spiess · Inject Machine Plus
Not hand-knotting. Not a ventilating course. This is 3D injected construction, built to be fast enough to be commercially worth doing and precise enough to read as real growth from a few centimetres away.
You build the base. Measure and mark it to a real head. Inject the hair, control the density, set the hairline, seal and finish. You work on your own pieces from the first hour to the last and you take 2 to 3 of them home, finished, certified, ready to put in front of a client.
2 to 3
12
100%
This is not a course fee.
It is equipment for a service you cannot currently sell.
Do not value it by what you will learn. Value it by what a custom injected piece sells for in your market, and how many you need to make before it has paid for itself.
€500 to €900
What a finished injected piece sells for.
2 to 3
You finish 2 to 3 in class. At €500 to €900 a piece, 2 to 3 pieces cover Tier One; Tiers Two and Three pay back from about 3 pieces at the upper end of that range.
2 hrs
To build one piece on the Inject Machine Plus.
These figures reflect what trained professionals have achieved with the technique. Your own results depend on your market, your pricing and your client base. We make no guarantee of income.
“The difference here is not in your hands. It is in the tool, and in knowing exactly how to use it.”
Look at it up close.
Every claim on this page comes down to one test: does the piece survive daylight and a close look? Judge it yourself.
Unretouched. From Eva’s own classes and studio.
You do not watch a demo.
You build the pieces.
Every participant works on their own project from the first morning. Theory is kept to exactly what you need to make the next decision. The rest of the time your hands are on the work, with Eva moving between you.
The Base
Everything the finished piece depends on. You will manufacture and prepare the base, measure and mark to the exact size required, prepare your materials, and set up the Inject Machine Plus properly, the step most people get wrong before they have injected a single hair.
- Base Manufacture
- Measurement & Marking
- Material Preparation
- Machine Setup
- Working With the Inject Machine Plus
The Injection
Hair injection, density control and the hairline, the three things that decide whether a piece looks real or looks like a wig. Then sealing, finishing, quality control, and professional attachment to the scalp including safe distance and aftercare.
- Hair Injection
- Density Control
- Hairline Construction
- Sealing & Finishing
- Quality Control
- Professional Attachment
The Extensions
The same machine and the same principle, turned into a second income line. You will manufacture invisible injected extensions yourself, in minutes, instead of ordering them in and marking them up. Keratin, microlink and double-sided tape too, all removable, maintainable and reusable.
- Microlink
- Invisible Injected Tape
- 3D Injected Tape
- Double-Sided Tape
- Removal & Reuse
You Also Leave With
Your 2 to 3 Finished Pieces
The prostheses or frontals you built in class, yours to keep, photograph, and show clients as proof of what you can now make.
Official Certification
An official certificate from Eva Spiess / Inject Machine, awarded on completion of your pieces.
Hair Mastery Community
Lifetime access to the Hair Mastery network, ongoing support and connection with graduates worldwide.
Eva Spiess
Specialist in 3D Injected Hair Prosthesis
Eva built her reputation on a single obsession: hairpieces that hold up to a close look. Not from a distance, not in flattering light, but up close, in daylight, on a real client who has to live in it every day.
That obsession produced a method. It is built to make injected construction fast enough to be commercially viable and precise enough to pass as natural growth. It is the difference between a technique that impresses in a classroom and one that changes what your business can charge.
She teaches from Zurich, and has taught the method to more than a thousand professionals across 38 countries. This is her first masterclass series with Hair Mastery.
Do not take our word for it.
“
You do not leave until
you have actually made one.
The honest risk with any hands-on class is that you fly in, follow along, and fly home without being able to do it alone. So we have removed that outcome from the table.
The Finished Pieces Guarantee
Every participant leaves this class with at least two completed, professional-standard pieces built with their own hands, and time permitting a third, or you are welcome back on the next available date at no cost.
That is the whole promise, and it is deliberately narrow. We cannot guarantee what you will charge, how many clients you will win, or what your market will bear. What we can guarantee is that you will not go home having only watched.
Certified, not just attended
Certification is awarded on completion of your pieces, not on turning up: an official certificate from Eva Spiess / Inject Machine.
Choose your tier.
Every tier is fully hands-on, every tier is certified, and every tier sends you home with the 2 to 3 pieces you built. The difference is what is provided, and how much of the business you walk away with.
Tier One
€1,500
- 2 full days, 09:00 to 17:00
- Wig / topper design and construction
- Inject Machine Plus access in class
- You supply your own materials
- Official certificate on completion
- Take your 2 to 3 finished pieces home
Tier Two
€1,990
- 2 full days, 09:00 to 17:00
- Wig / topper design and construction
- Inject Machine Plus access in class
- All materials and consumables provided
- Official certificate on completion
- Take your 2 to 3 finished pieces home
Tier Three
€2,600
- 3 full days, 09:00 to 17:00
- Wig / topper design and construction
- Plus a full day of invisible extension creation, your own product at your full margin
- All materials and consumables provided
- Official certificate on completion
- Take your 2 to 3 finished pieces home
Join the waitlist
Be first to hear when Eva’s city and dates are confirmed. Just your email, nothing to pay.
We’ll only email you about this class. Unsubscribe any time.
First dates begin November 2026 across the USA, Canada and Australia. We confirm cities based on where the interest is, so tell us your city when you enquire. Prices exclude travel and accommodation. Payment plans available on request.
Everything else.
No. The class takes complete beginners through the full process, and it is equally suited to working hairdressers, wigmakers, beauty professionals and brand owners. Everyone works on their own project at their own level.
The Inject Machine Plus is provided for you to use in class, on every tier. If you would like your own machine after the class, ask us when you book.
Scissors, a stapler, a mannequin head (half head, with support) and a small beard trimmer or clipper. Eva provides the Inject Machine Plus and all specialist materials. On Tier One you also bring your own hair and consumables. On Tiers Two and Three everything is provided.
A maximum of 12 participants per class, so Eva can work on every piece with you.
English. Eva also teaches in German, Portuguese and Spanish, so if a cohort needs one of those it can be arranged: tell us when you enquire.
No, travel and accommodation are arranged by you. We are happy to recommend options near the venue once a city is confirmed.
Cancellations made two weeks or more before the class may be eligible for credit or rescheduling to a future date. Requests made 30 or more days before the original class carry no fee; within 30 days a €150 admin fee applies. Cancellations under two weeks, and no-shows, are non-refundable. If we cancel a class for any reason you receive a full refund or a free transfer to the next date, your choice. Full terms are in our refund policy.
You will be able to build and sell something most salons in your area cannot make at all, which is what gives you room on price. What you actually charge depends on your market and your clients. We do not promise an income, and you should be sceptical of anyone who does.
Almost nobody in your city
can make this.
Three days is all it takes to be one of the people who can.
01
Join the waitlist with your city and tier.
02
We confirm your date as soon as your region is locked.
03
You arrive, you build, you leave with 2 to 3 finished pieces.