
Classic Eyelash Extensions Course
Master the classic 1:1 eyelash extension technique from the ground up — covering anatomy, adhesive chemistry, isolation, lash mapping, and full-set application. This course gives you the hands-on knowledge and professional protocols to deliver safe, beautiful results on every client. Whether you are starting your lash career or formalising your skills, this is the complete foundation you need.
What you will learn:
You will learn how the eye and lash growth cycle works, so you can make smart decisions before you ever pick up a tweezer. You will master adhesive chemistry, bead control, and environmental management to build bonds that actually last. The course walks you through isolation mechanics, lash mapping for every eye shape, and the full classic application workflow. You will also cover safe removal, infill appointments, client consultations, and aftercare education. By the end, you will have the technical skills and professional knowledge to run a confident, compliant lash practice.
How you study in practice Classic Eyelash Extensions Course
How you practise Classic Eyelash Extensions Course
For companies looking to train their team
With Dedika for businesses, the course includes exercises and examples tailored to your own business and the specific needs of your company.
Course content
8 Chapters • 40 LessonsDuration between 4 and 360 hours (you decide)
Chapter 1HideHide detailsSee detailsFoundations of Lash Extension Practice
Foundations of Lash Extension Practice
Lesson 1 • Industry Standards and Scope of Practice
Defines professional boundaries, licensing requirements, and ethical conduct. Anchors all subsequent technical training within a compliant practice framework.
Lesson 2 • Lash Growth Cycle and Shedding
Explains anagen, catagen, and telogen phases and their impact on retention. Students predict shedding patterns to set accurate client expectations.
Lesson 3 • Eye and Lash Anatomy Essentials
Covers orbital anatomy, follicle structure, and natural lash characteristics. Provides the biological foundation required for safe extension placement.
Lesson 4 • Contraindications and Client Screening
Identifies medical, allergic, and lifestyle contraindications that prevent safe service. Students conduct intake assessments to protect client and technician.
Lesson 5 • Sanitation, Hygiene, and Infection Control
Applies disinfection, sterilization, and single-use protocols to the lash workspace. Meets health authority hygiene standards required for professional operation.
Chapter 2HideHide detailsSee detailsTools, Materials, and Product Knowledge
Tools, Materials, and Product Knowledge
Lesson 1 • Tweezers, Trays, and Application Tools
Identifies isolation and application tweezers, lash trays, and ancillary tools. Proper tool selection directly affects isolation precision and application speed.
Lesson 2 • Under-Eye Pads and Tape Techniques
Covers gel pad and tape selection, placement, and removal to protect lower lashes. Correct pad placement prevents sticking and client discomfort throughout service.
Lesson 3 • Extension Fiber Types and Specifications
Compares synthetic, silk, and mink-style fibers by weight, sheen, and taper. Students match fiber type to client lifestyle and natural lash health.
Lesson 4 • Adhesive Chemistry and Performance
Explains cyanoacrylate chemistry, cure mechanisms, and environmental variables. Students troubleshoot adhesive performance before applying it to clients.
Lesson 5 • Curl Types, Lengths, and Diameters
Maps curl designations from J to D and diameter ranges from 0.10 to 0.20 mm. Students apply specification knowledge to design decisions in later chapters.
Chapter 3HideHide detailsSee detailsAdhesive Mastery and Bonding Principles
Adhesive Mastery and Bonding Principles
Lesson 1 • Adhesive Troubleshooting and Correction
Diagnoses poor retention, stickies, and blooming caused by adhesive misuse. Students apply corrective techniques without compromising natural lash health.
Lesson 2 • Environmental Control for Adhesive Performance
Teaches humidity and temperature monitoring and adjustment strategies in the workspace. Students maintain optimal conditions to ensure predictable adhesive behavior.
Lesson 3 • Placement Timing and Cure Windows
Explains open time, placement window, and polymerization stages for common adhesives. Students time placements to maximize bond integrity before full cure.
Lesson 4 • Adhesive Preparation and Dispensing
Covers shaking, nozzle priming, and drop dispensing onto jade stone or ring. Correct preparation prevents inconsistent viscosity and premature curing.
Lesson 5 • Dipping Technique and Bead Control
Trains the precise dip angle and depth to achieve a micro-bead at the extension base. Bead size directly determines bond strength and prevents stickies.
Chapter 4HideHide detailsSee detailsIsolation Technique and Precision Handling
Isolation Technique and Precision Handling
Lesson 1 • Single-Lash Isolation Mechanics
Practices the push-and-hold isolation motion that separates one natural lash cleanly. Consistent isolation is the primary factor preventing stickies and client discomfort.
Lesson 2 • Identifying and Selecting Natural Lashes
Trains the eye to distinguish mature anagen lashes from baby and telogen lashes. Students select only appropriate lashes to protect follicle health and retention.
Lesson 3 • Isolation Practice on Training Aids
Uses mannequin heads and lash strips to build muscle memory before live models. Deliberate practice on training aids accelerates skill transfer to real clients.
Lesson 4 • Tweezer Grip and Hand Positioning
Establishes ergonomic grip, wrist angle, and hand-bracing techniques for sustained precision. Correct posture reduces fatigue and improves isolation accuracy over long sessions.
Lesson 5 • Working Across the Lash Line
Develops a systematic working pattern from inner to outer corner and back. Structured sequencing ensures full coverage and prevents missed or doubled lashes.
Chapter 5HideHide detailsSee detailsLash Mapping and Eye Shape Design
Lash Mapping and Eye Shape Design
Lesson 1 • Eye Shape Analysis and Classification
Identifies almond, round, hooded, monolid, downturned, and wide-set eye shapes. Accurate classification is the prerequisite for all design decisions in this chapter.
Lesson 2 • Consultation and Design Communication
Trains students to translate client inspiration images into achievable mapped designs. Clear communication prevents mismatched expectations and builds client trust.
Lesson 3 • Classic Style Variations
Covers natural, cat-eye, doll-eye, and squirrel-eye map configurations. Students select and execute the appropriate style based on eye shape and client preference.
Lesson 4 • Curl and Length Strategy by Eye Shape
Pairs specific curl and length combinations with each eye shape to enhance or correct proportions. Students apply strategic choices to lift, open, or elongate the eye.
Lesson 5 • Lash Mapping Fundamentals
Teaches zone-based mapping on under-eye pads to pre-plan length and curl placement. Mapping before application eliminates guesswork and ensures design consistency.
Chapter 6HideHide detailsSee detailsClassic 1:1 Application Technique
Classic 1:1 Application Technique
Lesson 1 • Post-Application Inspection and Finishing
Applies a systematic quality check for stickies, gaps, and misaligned extensions. Finishing steps include brushing, fanning, and client aftercare briefing.
Lesson 2 • Completing a Full Classic Set
Guides students through a timed full-set workflow from first lash to final check. Structured pacing builds the speed and consistency required for professional service.
Lesson 3 • Client Preparation and Positioning
Covers bed height, client recline, lighting setup, and pre-cleanse protocol. Proper preparation creates the ergonomic and hygienic conditions for precise application.
Lesson 4 • Extension Pickup and Placement
Trains the pinch-and-slide pickup and the glide-on placement at the natural lash base. Correct placement 0.5–1 mm from the lid ensures safety and bond longevity.
Lesson 5 • Angle, Direction, and Curl Alignment
Ensures each extension follows the natural lash's growth direction and curl orientation. Aligned extensions create a cohesive, natural-looking set and reduce torsional stress.
Chapter 7HideHide detailsSee detailsSafe Removal and Lash Health Protocols
Safe Removal and Lash Health Protocols
Lesson 1 • Recognizing and Responding to Adverse Reactions
Identifies allergic reactions, chemical burns, and mechanical damage requiring immediate action. Students apply first-response protocols and refer clients to medical care when appropriate.
Lesson 2 • Lash Recovery and Conditioning Treatments
Introduces lash serums, conditioning coats, and rest periods to restore natural lash vitality. Students recommend appropriate recovery protocols based on assessed damage level.
Lesson 3 • Full-Set Removal Methods
Compares gel, cream, and oil-based removers for full-set dissolution and mechanical removal. Students select the safest method based on client sensitivity and extension age.
Lesson 4 • Assessing Natural Lash Condition
Evaluates lash density, length, and curl after removal to detect damage or thinning. Assessment findings guide recommendations for recovery and future service timing.
Lesson 5 • Protecting Natural Lashes During Removal
Applies protective barriers and controlled technique to prevent mechanical trauma during removal. Lash health preservation is the primary measure of removal quality.
Chapter 8HideHide detailsSee detailsFill Appointments and Retention Management
Fill Appointments and Retention Management
Lesson 1 • Fill Workflow and Time Management
Structures the fill appointment into assessment, removal, and application phases with time targets. Efficient workflow allows professional fill completion within standard service windows.
Lesson 2 • Retention Assessment and Documentation
Evaluates percentage of remaining extensions and identifies retention failure causes. Systematic documentation supports pattern recognition and service improvement.
Lesson 3 • Client Aftercare Education
Delivers clear aftercare instructions covering cleansing, products to avoid, and sleep habits. Educated clients achieve better retention and require fewer corrective appointments.
Lesson 4 • Troubleshooting Poor Retention with Clients
Guides collaborative problem-solving when clients report premature shedding or damage. Students identify root causes and implement corrective strategies without blame.
Lesson 5 • Grown-Out Extension Removal
Safely removes extensions that have grown too far from the lid using remover or mechanical technique. Proper removal prevents natural lash breakage and prepares a clean base.
Your valid completion certificate
This course is for you:
Estheticians: looking to add a high-demand lash service to their menu.
Makeup artists: wanting to expand into longer-lasting beauty enhancement services.
Career changers: seeking a flexible, skill-based profession in the beauty industry.
Nail technicians: ready to diversify income with a complementary beauty specialty.
Stay-at-home parents: building a home-based business around a practical beauty skill.
Self-taught lash enthusiasts: needing structured training to work on paying clients safely.
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