Builder Gel & E File (1 Day)
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Elevate Your Services with Builder Gel Mastery
Accredited course | Case studies required | E-file qualification included
Already qualified in gel polish and ready to take your skills to the next level? The TWENTY BUILD & BOOST Builder Gel Course is designed for nail techs who want to confidently offer builder gel services—whether you're starting from scratch or refining your technique to align with the TWENTY standard.
This hands-on, accredited course is perfect for those looking to improve structure, retention, and client results using our HEMA-free BUILD & BOOST system.
Learn from the Best
Taught by Lauren Jones, TWENTY’s award-winning Head of Education and Product Consultant, this course gives you direct access to elite industry knowledge and practical, real-world skills. You’ll leave confident in your builder gel services—with a flawless finish, faster appointment times, and better results for your clients.
What You’ll Learn
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The perfect prep routine using both hand tools and the E-file
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When and why to use primer, base, or go straight to builder
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How to build flawless structure with apex and balance
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Tips to avoid common issues like lifting, cracking, or bubbles
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HEMA-free builder gel best practices for maximum retention and safety
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Infill and rebalance techniques for long-term clients
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Safe, efficient removal of builder gel without damage to the natural nail
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Prescriptive guidance on when to use builder gel and on whom
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Client aftercare advice that supports nail health and rebooking
BONUS: E-File Qualification Included
If you’re not already trained in E-file techniques, this course includes a fully accredited E-file qualification at no extra cost.
Already trained? You’ll still benefit from a professional refresher designed to enhance your skills and improve your speed and precision.
Why We Teach E-File
E-file techniques are essential for modern nail professionals. At TWENTY, we believe in working smarter, not harder.
The E-file allows for:
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More efficient and thorough nail prep
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Smoother product application
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Reduced strain on your hands and wrists
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Quicker, safer removals
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Better retention through precise refinement
Learning how to use the E-file properly means you can cut down on appointment times, increase bookings, and ultimately boost your income—without sacrificing quality.
Your Qualification
This is an accredited course, and upon completion you’ll be required to submit two case studies demonstrating your understanding and execution of BUILD & BOOST builder gel services. Once approved by your educator, you’ll receive your official Builder Gel Certificate, allowing you to offer these services professionally and confidently.
Why Choose a Builder Gel Course with TWENTY?
Because we don’t believe in “good enough.” We believe in industry-standard education that’s rooted in performance, professionalism, and purpose. Our builder gel course goes beyond surface-level training and gets to the heart of what makes a service exceptional: correct product use, perfect prep, flawless execution, and strong client relationships.
Whether you’re rebranding, upgrading your technique, or refining your process—this course will set you apart.
Full Nail Preparation: The Foundation of Every Great Set
Learn our proven prep routine using both traditional hand tools and the E-file for precision and longevity.
We’ll guide you through:
- Safe and effective cuticle work
- Nail plate refinement
- Managing common prep challenges (peeling, flaking, uneven surfaces)
- Prepping for sensitive clients with minimal dust/friction
- Choosing the right bits for each step
BUILD & BOOST Builder Gel Application
Master both our original and HEMA-free builder systems with techniques that prioritise retention and nail health.
We’ll cover:
- Choosing the right base coat and when to use primer
- Structuring for natural nail overlays
- How to get a smooth, strong apex with minimal filing
- Safe removal and infill techniques
- Tips for preventing lifting on challenging nail types
- How to maximise retention with HEMA-free formulas
Prescriptive Manicures: Tailoring the System to the Client
Not every client needs the same product or approach. You’ll be guided through how to assess nail types, lifestyle and concerns to prescribe the right service—from BIAB overlays to hard gel extensions—ensuring long wear and client satisfaction.
Finishing Techniques for Flawless Results
Perfect your shaping, buffing and top coat application to leave a high-gloss, durable finish every time—no matter the nail type or product used.
Time-Saving Methods That Boost Profitability
Learn how to structure your appointments, streamline your setup, and master application techniques that save time without compromising quality—helping you see more clients and grow your income confidently.
Professional E-File Training
Throughout the course, every technique is taught with the E-file in mind. If you’re not already E-file certified, this course includes a bonus qualification. You’ll learn:
- Correct bit selection and usage
- Safety techniques to protect the natural nail
- Prep, product refinement, and efficient removal
- How to prevent client discomfort and overfiling
Your kit will include:
1 x Professional Smart Lamp
1 x Primer
1 x Rubber Base Original Formula
1 x Rubber Base HEMA Free
1 x BUILD & BOOST Original Formula
1 x BUILD & BOOST HEMA Free
1 x Glass No-Wipe Top Coat
1 x Supergloss Top Coat
1 x Salon Towel
1 x Salon Apron
1 x Box 100 Gloves
1 x 'L' Liner Brush
1 x 'R' Round Brush
1 x File
1 x Buffer
If you do not have any TWENTY builder gel products or our Professional Smart Lamp, you may like to purchase a kit to use on your training course and take home with you so you are fully prepared to offer builder gel services to your clients.
However, products will be available to use on your course as well as items such as files, buffers, brushes and tools - you just won't be able to take them home with you.
What Makes This Course Different?
We believe that confidence and competence come from real experience. That’s why your learning journey doesn’t end in the classroom.
To complete the course, you’ll be required to submit two case studies—real-life client sets that demonstrate your understanding, technique, and professionalism.
Your educator will review your work in detail, offering personalised feedback to fine-tune your application process and ensure your results are safe, consistent, and salon-ready.
Why Case Studies?
Because confidence comes from doing—not just watching.
Working on real clients (friends or family) without an educator over your shoulder is your opportunity to prove to yourself that you’re ready. And with your educator's guidance, you’ll have the expert support to perfect your skills before you ever open your appointment book.
Once your case studies are approved, you’ll receive your fully accredited certificate, qualifying you as a professional nail technician.
Why In-Person Training Matters
While online courses offer flexibility and convenience, nothing compares to the quality, depth, and hands-on confidence you gain from in-person training—especially when you're learning a technical, practical skill like nail application.
Here’s why our in-person training makes all the difference:
1. Learn By Doing — Not Just Watching
Watching videos can teach theory, but real confidence comes from physically practising the techniques under expert guidance. You’ll be working with real products, on real hands, in real time—so you can refine your skills through action, not guesswork.
2. Instant, Personalised Feedback
With in-person training, your educator is right there to correct, adjust, and guide you every step of the way. This level of live, tailored feedback is something you simply can’t get from pre-recorded content.
3. Spot & Correct Bad Habits Early
Without supervision, it’s easy to develop incorrect techniques that can lead to lifting, client complaints, or even damage to the natural nail. In-person training allows us to spot those mistakes early—and fix them on the spot—before they become bad habits.
4. Build Confidence in a Real-World Setting
Our classroom environment is designed to mimic salon scenarios, giving you the chance to practise services in realistic conditions. You’ll gain experience managing timing, product control, and client communication in a way that prepares you for real paying clients.
5. Human Support = More Motivation
Learning can feel lonely online. In-person, you're surrounded by fellow students, a supportive educator, and a buzz of encouragement. You can ask questions, get reassurance, and stay motivated from start to finish.
6. You're Not Just Learning—You're Being Assessed
We hold our students to professional industry standards. That means you’re not just ‘ticking boxes’—you’re being coached, assessed, and supported until your skills meet the standard required to succeed in real life.
The TWENTY Standard
At TWENTY, we believe that nail training should be more than just passable—it should be exceptional. That’s why our in-person courses are immersive, detailed, and backed by industry-leading educators who care about your success.
Because when you’re working with real clients, real products, and real responsibility…
You deserve real training.
Yes! This course is fully accredited by ABT. Meaning that you will be a fully qualified nail technician once completed.
