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Aesthetician Course
More than 2 million students worldwide

Aesthetician Course

Launch your career in skincare with a comprehensive Aesthetician Course that covers everything from skin science to advanced treatments. Learn professional techniques, control cutting-edge devices, and build the business skills to thrive in any setting. This course gives you the real-world knowledge and hands-on expertise that clients and employers expect from day one.

Dedika for businesses

What you will learn:

This course takes you through the full scope of professional aesthetics, starting with skin anatomy and working up to advanced chemical peels, specialized treatment protocols, and esthetic technology. You'll learn how to conduct thorough client consultations, develop personalized treatment plans, and recommend products grounded in real-ingredient science. Hygiene standards, regulatory compliance, and client safety are covered in depth, so you're always practicing within professional guidelines. You'll also develop the business and marketing skills needed to attract clients, boost retail sales, and grow a sustainable career. By the end, you'll be equipped to work confidently in a day spa, medical spa, or your own independent practice.

How you study in practice Aesthetician Course

How you practice Aesthetician Course

For companies that want to train their team

With Dedika for Business, the course includes exercises and examples tailored to your own business and the way your company needs.

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Course content

8 Chapters • 42 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Skin Science

  • Lesson 1 • Skin Types and Conditions

    Differentiates normal, oily, dry, combination, and sensitive skin types. Builds classification skills used in every client consultation and product selection.

  • Lesson 2 • Skin Anatomy and Structure

    Covers epidermis, dermis, and hypodermis layers with cellular composition. Anchors all subsequent treatment decisions in accurate anatomical understanding.

  • Lesson 3 • Skin Physiology and Functions

    Explains barrier function, thermoregulation, sensation, and immune response. Connects physiological roles to treatment contraindications and expected outcomes.

  • Lesson 4 • Common Skin Disorders Overview

    Identifies acne, rosacea, hyperpigmentation, eczema, and aging changes. Enables students to recognize treatable versus contraindicated conditions before service.

  • Lesson 5 • Skin Analysis Techniques

    Introduces visual, tactile, and magnification-based assessment methods. Prepares students to document findings and build individualized treatment plans.

Chapter 2See details

Hygiene, Safety, and Professional Standards

  • Lesson 1 • Regulatory Compliance and Licensing

    Outlines scope-of-practice boundaries, licensing requirements, and inspection readiness. Prepares students to operate within professional and regulatory frameworks.

  • Lesson 2 • Client Safety and Contraindications

    Identifies medical conditions, medications, and allergies that restrict treatments. Builds systematic intake screening to prevent adverse events.

  • Lesson 3 • Sanitation and Disinfection Protocols

    Distinguishes sterilization, disinfection, and sanitation levels for tools and surfaces. Ensures students select correct decontamination methods for each item category.

  • Lesson 4 • Personal Protective Equipment

    Establishes correct glove, mask, and eyewear use during treatments. Protects both practitioner and client from cross-contamination and chemical exposure.

  • Lesson 5 • Microbiology for Aestheticians

    Covers bacteria, viruses, fungi, and parasites relevant to skin services. Grounds sanitation decisions in understanding of pathogen transmission routes.

Chapter 3See details

Cosmetic Chemistry and Ingredients

  • Lesson 1 • Ingredient Interactions and Conflicts

    Identifies incompatible ingredient pairings and sequencing errors that reduce efficacy. Prevents client harm and product waste through informed layering decisions.

  • Lesson 2 • Sunscreen Science and SPF

    Differentiates chemical and mineral UV filters, SPF ratings, and broad-spectrum protection. Establishes daily SPF recommendation as a non-negotiable professional standard.

  • Lesson 3 • Hydration and Barrier Ingredients

    Examines humectants, emollients, occlusives, and ceramides and their roles. Connects ingredient function to barrier repair protocols for compromised skin.

  • Lesson 4 • Cosmetic Formulation Basics

    Explains emulsions, pH, preservatives, and vehicle systems in skincare products. Provides the chemical context needed to evaluate product efficacy and safety.

  • Lesson 5 • Key Active Ingredients

    Covers retinoids, AHAs, BHAs, vitamin C, niacinamide, and peptides in depth. Enables evidence-based ingredient recommendations matched to specific skin concerns.

Chapter 4See details

Client Consultation and Communication

  • Lesson 1 • Consultation Framework and Intake

    Establishes a repeatable consultation structure covering health history, goals, and lifestyle. Creates the foundation for safe, goal-aligned service delivery.

  • Lesson 2 • Managing Difficult Conversations

    Addresses unrealistic expectations, complaints, and sensitive skin concerns diplomatically. Equips students to de-escalate and redirect without damaging the client relationship.

  • Lesson 3 • Treatment Plan Development

    Translates consultation findings into sequenced, goal-oriented treatment plans. Connects skin analysis data to service selection and home-care recommendations.

  • Lesson 4 • Active Listening and Empathy Skills

    Trains reflective listening, open-ended questioning, and non-verbal communication. Builds trust that increases client disclosure and treatment compliance.

  • Lesson 5 • Informed Consent and Ethics

    Covers disclosure of risks, benefits, and alternatives before each service. Ensures students uphold ethical standards and protect client autonomy.

Chapter 5See details

Facial Treatment Fundamentals

  • Lesson 1 • Facial Massage Techniques

    Introduces effleurage, petrissage, tapotement, and lymphatic strokes for the face. Develops manual dexterity and pressure control essential to client comfort and results.

  • Lesson 2 • Mask Application and Removal

    Covers clay, cream, gel, and sheet mask selection, application, and removal. Connects mask choice to treatment goals established during consultation.

  • Lesson 3 • Exfoliation Methods and Application

    Differentiates mechanical and enzymatic exfoliation and their appropriate uses. Builds safe exfoliation judgment based on skin sensitivity and condition.

  • Lesson 4 • Cleansing and Skin Preparation

    Teaches double-cleanse methodology, makeup removal, and pre-treatment toning. Prepares the skin surface for maximum product penetration and accurate analysis.

  • Lesson 5 • Serum and Moisturizer Application

    Teaches layering serums, moisturizers, and SPF in correct order and quantity. Reinforces ingredient knowledge and product-layering logic for optimal skin outcomes.

  • Lesson 6 • Treatment Room Setup and Draping

    Covers ergonomic room layout, equipment positioning, and client draping standards. Establishes professional environment habits that support efficient, safe service delivery.

Chapter 6See details

Advanced Exfoliation and Chemical Peels

  • Lesson 1 • Managing Peel Reactions

    Identifies normal erythema, peeling, and hyperpigmentation versus adverse reactions. Prepares students to intervene appropriately and communicate expected healing timelines.

  • Lesson 2 • Pre-Peel Assessment and Preparation

    Covers Fitzpatrick typing, contraindication screening, and pre-conditioning protocols. Reduces adverse event risk through systematic client preparation before acid application.

  • Lesson 3 • Post-Peel Home Care Protocols

    Designs home-care regimens covering gentle cleansing, barrier repair, and strict SPF use. Maximizes peel results and minimizes complications through client education.

  • Lesson 4 • Chemical Peel Classification

    Categorizes peels by depth, acid type, and skin penetration level. Establishes the decision framework for matching peel depth to client skin condition and goals.

  • Lesson 5 • Peel Application Technique

    Teaches acid application tools, layering passes, timing, and neutralization methods. Builds precise manual technique to achieve consistent, controlled exfoliation results.

Chapter 7See details

Esthetic Technology and Devices

  • Lesson 1 • Microcurrent and Electrical Modalities

    Explains microcurrent, galvanic, and high-frequency device mechanisms and applications. Connects electrical modalities to muscle toning, product penetration, and acne treatment goals.

  • Lesson 2 • Ultrasound and Ultrasonic Devices

    Explains ultrasonic spatula, sonophoresis, and focused ultrasound mechanisms. Builds competency in using sound-wave technology for deep cleansing and product infusion.

  • Lesson 3 • Microdermabrasion Techniques

    Covers crystal and diamond-tip microdermabrasion mechanics, passes, and pressure settings. Builds controlled abrasion skills for resurfacing without compromising skin integrity.

  • Lesson 4 • LED Light Therapy

    Covers red, blue, near-infrared, and yellow LED wavelengths and their biological effects. Enables students to select correct wavelengths for acne, aging, and inflammation goals.

  • Lesson 5 • Device Safety and Maintenance

    Establishes cleaning, calibration, and storage protocols for all professional devices. Ensures equipment longevity and client safety through systematic maintenance habits.

Chapter 8See details

Specialized Treatments and Advanced Services

  • Lesson 1 • Treatment Series Planning

    Designs multi-session treatment series with progressive intensity and measurable milestones. Connects series planning to client retention, results optimization, and business growth.

  • Lesson 2 • Anti-Aging Treatment Protocols

    Integrates microcurrent, retinoid peels, LED, and peptide serums for aging skin. Develops sequenced multi-modality protocols targeting fine lines, laxity, and texture.

  • Lesson 3 • Acne Treatment Protocols

    Combines extractions, chemical exfoliation, LED, and high-frequency for acne management. Builds systematic acne treatment plans addressing sebum, bacteria, and inflammation simultaneously.

  • Lesson 4 • Body Treatment Services

    Extends facial skills to back facials, body exfoliation, and body wraps. Expands service menu competency and revenue potential beyond facial treatments.

  • Lesson 5 • Sensitive and Rosacea Skin Protocols

    Designs calming, barrier-focused treatments avoiding known triggers for reactive skin. Develops restraint and precision in service selection for the most vulnerable skin types.

  • Lesson 6 • Hyperpigmentation Treatment Protocols

    Addresses melasma, post-inflammatory hyperpigmentation, and sun damage with targeted actives. Builds safe brightening protocols that account for Fitzpatrick type and photosensitivity.

Certification

Your valid completion certificate

This course is for you:

  • Aspiring aestheticians: ready to build a client-ready professional skill set.

  • Cosmetology graduates: wanting to specialize deeper in skincare and treatments.

  • Career changers: drawn to the beauty industry from unrelated professional backgrounds.

  • Spa receptionists: looking to transition into a hands-on treatment provider role.

  • Skincare enthusiasts: serious about turning a personal passion into a real career.

  • Salon assistants: ready to expand their role beyond support into licensed services.

What our students say

Your classes are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of my interest without needing to switch platforms... I thank you for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can switch chapters and skip content I don't need.
Mariana Ferres
Mariana FerresPhotography Student
I like the content and the presentation style and video transcription, which speeds up the process!
Luciana Alvarenga
Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.
André Felipe
André FelipePrompt Engineering Student

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