CAHYA NAILS EDUCATION/Dual Forms — The Complete Extension System

  • $999 or 2 monthly payments of $549

Dual Forms — The Complete Extension System

  • Course
  • 38 Lessons

Extensions that lift within a week. Shapes that are never quite symmetrical. Product that pops off the form before it even cures.

If any of this sounds familiar, the problem is not the product you are using. It is the system underneath it.

Dual forms look simple. Fit the form, add product, cure, remove. But the margin for error is small and most of what goes wrong happens before the form even goes on.

This course teaches the complete system. From form selection and fitting through to retention and troubleshooting. Every step. In the right order. With personal corrections on your actual work.

What is included:

MODULE 0 — Before You Begin
How to use this course
What you need — tools, products, dual forms kit
How submissions work

MODULE 1 — Understanding Dual Forms

What good practice looks like
What dual forms are and how they work
Types of dual forms — sizing, shape, material differences
When to use dual forms vs other extension methods
Common dual form mistakes before we even start

MODULE 2 — Prep for Extensions

Why prep for extensions is different from prep for overlays
Nail plate prep — dehydration, primer, and bonding
Cuticle work before extensions — what changes
How the natural nail condition affects extension wear

MODULE 3 — Sizing and Fitting

How to size dual forms correctly — the common mistakes
Fitting the form to the nail — contact, curvature, and seal
Customizing the form — filing the edges, adjusting the C-curve
How a poorly fitted form causes lifting and structural failure

MODULE 4 — Product Application Inside the Form

Product selection — which builder gel works with dual forms
How much product — bead size, placement, and spread
Structure inside the form — apex, zones, and C-curve
Curing inside the form — time, lamp positioning, and heat spikes

MODULE 5 — Removal and Reveal

How to remove the form without damaging the extension
What you see after removal — reading the surface
Immediate corrections after reveal — what can be fixed and what cannot
The reveal checklist — what a correct result looks like

MODULE 6 — Filing and Shaping the Extension

Filing sequence for extensions — shape, length, sidewalls
How to create correct side profile on an extension
Symmetry across all ten nails — how to read and correct
Surface prep before colour — buffing, cleansing, and final check

MODULE 7 — Finishing, Sealing, and Colour

Base gel on extensions — flooding risks and correct coverage
Colour on extensions — opacity, thin layers, and free edge
Top coat and sealing — why extensions need extra attention at the edge
The finished set checklist

MODULE 8 — Retention and Troubleshooting Extensions

Why extensions lift — the 5 most common causes
Reading wear patterns on extensions
How to respond to client concerns about extensions
Infills vs removal — how to decide and how to advise the client

BONUS — Money Leak Calculator (Extensions Edition)

How much is poor extension technique costing you per year? Calculate across 5 common extension technique gaps.

How much is poor extension technique costing you per year? Calculate across 5 common extension technique gaps.

Who this is for:

Nail techs who want to add extensions to their service menu and do it correctly from the start. Open to all levels — no prerequisites required.

If you have already completed the RM Foundations course, this course builds directly on the prep and structure knowledge you already have.

Frequently asked questions

Do I need to have done your RM Foundations course first?

No. This course is open to all levels. That said, if you have completed RM Foundations, you will find the prep and structure modules build directly on what you already know.

What dual forms do I need?

Module 0 covers the full kit list before you start. Most standard dual form kits work — the course is not brand-specific.

How do submissions work?

After each module you submit one complete set — photos and a short video. You receive personal corrections from Maya within 24 to 48 hours.

How long do I have access?

90 days from enrollment.

Can I do this alongside the RM Foundations course?

Yes. they cover different skills and can be taken at the same time.