“المحاضرات جميلة جدا و استفدت كتير وفى انتظار المزيد ان شاء الله ❤️”
Skin and Hair Care Diploma Part 4
The Most Comprehensive Diploma in Skincare, Haircare and Bodycare Part 4
4.8/5· 8 ratings· 453 learnerson Udemy
Taught in Arabic
Learn complex skincare science in your own language.
Practical & evidence-based
Connect science with real ingredients and products used in practice.
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Learn at your own pace
Study anytime, anywhere, on any device.

This course includes:
- Arabic-taught lessons
- 4.5 hours of video
- 58 lessons
- Lifetime access
- Watch on mobile or desktop
- Optional certificate of completion — USD 4.99
What you'll be able to do
Part 1 / The Scientific Foundation of cosmeceutics : Understanding the Basics.
Part 1 / Hyaluronic acid: Types, impact of particle size on efficacy and practical application to products on the market.
Part 1 / Collagen: Various ways to harness its benefits, influencing factors, and practical application to products on the market.
Part 1 / Understanding the difference between skin type and skin condition.
Part 1 / The bases on which the skin types are based.
Part 1 / The basic skin care steps.
Part 1 / Knowing the appropriate skin cleanser for the client by looking at it's ingredients list and being able to describe more suitable alternatives.
Part 1 / Understanding Micellar Water and practical application to products on the market.
Part 1 / Understanding Toner and practical application to products on the market.
Part 1 / Understanding the Science of Skin Exfoliation.
Part 1 / The different methods of physical peeling and practical application to the products on the market.
Part 1 / All types of chemical peels, the appropriate type for each skin, and practical application to products on the market.
Part 1 / Peeling and customer complaints that you need to know the answer to.
Part 1 / Vitamin A skin therapeutic role.
Part 1 / Factors that determine the effectiveness of a vitamin A product.
Part 1 / All essential vitamin A derivatives (Retinoic acid /Retinol / Retinal..), and practical application to products on the market.
Part 1 / All synthetic vitamin A derivatives , and practical application to products on the market.
Part 1 / Understanding Carbon Peeling and Laser Peeling.
Part 1 / Knowing how to perform a sensitivity test for cosmetic products.
Part 1 / Understanding the Science of Skin Hydration.
Part 1 / Understanding the difference between skin hydration and skin moisturization.
Part 1 / Scientific classification of moisturizing active ingredients.
Part 1 / The ideal moisturizer and practical application to products on the market for all skin types.
Part 1 / How to know the active ingredients in a moisturizing product just by looking at it's name.
Part 1 / Understanding the differences between pure and derivative forms of vitamin C in terms of their advantages and disadvantages.
Part 1 / Understanding the differences between pure and derivative forms of vitamin E in terms of their advantages and disadvantages.
Part 1 / Understanding the role of amino acids in skin care products.
Part 2 / Understanding the causes of hyperpigmentation and how to prevent its occurrence.
Part 2 / Understanding the types of hyperpigmentation and the correct way to deal with each type.
Part 2 / Understanding the process of melanogenesis.
Part 2 / The active ingredients used in hyperpigmentation treatment, and a practical application to the products on the market.
Part 2 / Understanding the types of dark circles and how to treat each type.
Part 2 / Understanding the process of acne formation.
Part 2 / Understanding all types of acne and the correct way to treat each type.
Part 2 / Understanding the benefits of niacinamide for the skin and how its concentration determines its effectiveness.
Part 2 / Knowing the causes of wrinkles and how to prevent and treat them.
Part 2 / Knowing the scientific basis of sunscreens.
Part 2 / Understanding the active ingredients used for sun protection and practical application to products in the market.
Part 3 / Understanding the hair composition and types.
Part 3 / Understanding the chemical bonds in hair and the impact of hair care tools and products on them.
Part 3 / Understanding the hair growth cycle.
Part 3 / Understanding the scientific basis for hair care products.
Part 3 / Understanding the types of shampoos and their effects on hair.
Part 3 / Understanding all types of hair moisturizers.
Part 3 / Understanding the scientific basis of hair dyes.
Part 3 / Understanding all types of hair dyes and practical application to the products on the market.
Part 3 / Learning about all hair straightening methods.
Part 3 / Understanding the types of dandruff, the active ingredients used in its treatment, and practical application to products on the market.
Part 3 / A detailed explanation of all types of hair loss.
Part 3 / How to diagnose hair loss and the specific laboratory tests associated with it.
Part 3 / Explanation of hair loss treatment products and hair supplements.
Part 4 / Understand the biological function of sweat and the different types of sweat glands.
Part 4 / Explain the mechanisms of action for deodorants and antiperspirants.
Part 4 / Identify the active ingredients in deodorants and antiperspirants and their specific roles.
Part 4 / Differentiate between various types of hyperhidrosis and appropriate management strategies.
Part 4 / Assess the effectiveness of antiperspirant and deodorant forms such as roll-ons, creams, sticks, and sprays.
Part 4 / Understand the scientific evidence regarding the relationship between aluminum salts in antiperspirants and breast cancer.
Part 4 / Evaluate the scientific basis behind product claims regarding protection duration (e.g., 24-hour, 48-hour).
Part 4 / Learn the correct way to apply deodorants and antiperspirants for optimal results.
Part 4 / Apply knowledge of sweating conditions to select and use suitable products scientifically.
Part 4 / Assess deodorant and antiperspirant products from a scientific perspective, considering active ingredients and efficacy.
Part 4 / Compare Vichy antiperspirant collections and analyze their ingredient lists and unique features.
Part 4 / Summarize key points from Vichy’s first and second antiperspirant collections.
Part 4 / Examine Vichy deodorants in detail, focusing on active ingredients, pros and cons, and formulations.
Part 4 / Understand the differences between Uriage antiperspirants and deodorants, including active ingredients and product formulations.
Part 4 / Analyze budget-friendly antiperspirants and deodorants like Nivea products, focusing on active ingredients and uses.
Part 4 / Develop comprehensive knowledge of how to scientifically evaluate any sweat-related product, understanding key ingredients and factors to consider.
Part 4 / Understand the scientific basis of stretch marks formation.
Part 4 / Identify the causes and factors contributing to stretch marks.
Part 4 / Explain the stages of stretch marks and their progression.
Part 4 / Learn effective prevention methods for stretch marks.
Part 4 / Explore treatment methods for stretch marks that stimulate collagen production.
Part 4 / Evaluate less effective stretch marks treatments suitable for specific cases.
Part 4 / Analyze various market products for treating stretch marks.
Part 4 / Understand advanced device-based techniques for severe stretch mark treatment.
Part 4 / Understand the scientific basis of cellulite formation.
Part 4 / Identify the causes behind the development of cellulite.
Part 4 / Differentiate between the various grades of cellulite.
Part 4 / Compare cellulite appearance in women and men and understand the reasons for these differences.
Part 4 / Explore fundamental methods for treating cellulite.
Part 4 / Evaluate the effectiveness of topical cellulite products.
Part 4 / Understand the active ingredients in cellulite products and their roles.
Part 4 / Learn about advanced treatments for severe cellulite such as Cellulaze and Cellfina.
Part 4 / Understand non-invasive cellulite reduction methods like Cryolipolysis, Cavitation, and Radiofrequency.
Part 4 / Explore Mesotherapy as a treatment option for cellulite.
Part 4 / Understand the formation steps of keratosis pilaris.
Part 4 / Identify the factors that increase the appearance of keratosis pilaris.
Part 4 / Learn about essential products for treating keratosis pilaris.
Part 4 / Understand the active ingredients in keratosis pilaris products and their roles.
Part 4 / Explore innovative and simplified methods for treating keratosis pilaris.
Part 4 / Analyze global products for treating keratosis pilaris from companies like ISIS Pharma, SVR, and Uriage.
Part 4 / Evaluate the effectiveness of various global treatments based on their formulations and active ingredients.
Part 4 / Learn about off-label uses for treating keratosis pilaris.
From science to real products
Understand the science
Learn what's happening in the skin.
Understand the ingredients
See why different actives behave differently.
Apply it to real products
Compare formulations and products used in practice.
Is this course right for you?
This course is for
- Anyone interested in or dealing with cosmetic products, who wishes to enhance their understanding of deodorants and antiperspirants.
- This includes all health professionals such as pharmacists, doctors, dentists, nurses, veterinarians and even the layperson who wishes to better understand the products they are using.
Before you start
- No cosmetic knowledge required.
- We will begin by covering the basics to provide you with a strong foundation, upon which you can easily understand the more complex concepts which will be covered in this course.
- If you have minimal scientific, pharmaceutical, or medical background knowledge, you will have a deeper understanding.
Course curriculum
17 sections · 58 lessons · 286 min of video
Frequently Bought Together

Skin and Hair Care Diploma Part 3
The Most Comprehensive Diploma in Skincare, Haircare and Bodycare Part 3
Dr. Aya ElbrashyUSD 9.99
This courseSkin and Hair Care Diploma Part 4
The Most Comprehensive Diploma in Skincare, Haircare and Bodycare Part 4
Dr. Aya ElbrashyUSD 14.99
Total: USD 21.23
Full priceUSD 24.98Save 15%
Your instructor
Taught by Dr. Aya Elbrashy
Learn skin, hair, and beauty-nutrition science from an educator who has spent more than a decade turning research into decisions professionals use every day.
Professional credentials
Skin & Beauty Nutrition Specialist with 10+ years of experience, teaching an evidence-based curriculum.
What learners say
Real feedback from Dr. Aya's learners.
About this course
The objective of this diploma remains to provide you with comprehensive skills to address a variety of cosmetic concerns encountered in diverse settings, such as pharmacies or other professional environments. This will empower you to assess and recommend the most suitable products effectively.
Moreover, you will develop the ability to critically evaluate beauty products, gaining insight into essential considerations during the assessment process.
Each section of the diploma will continue to explore three primary aspects:
A detailed explanation of the scientific foundations underlying the subject matter or specific hair issue at hand.
Exploration of the active ingredients utilized in treating these hair concerns.
Practical application of this scientific knowledge through the examination of haircare products from renowned global brands, including La Roche-Posay, Bioderma, Avene, Isispharma, CeraVe, The Ordinary, Uriage, Vichy, SkinCeuticals, Paula's Choice, and others.
This diploma comprises four parts, all accessible on this platform. Both the first and second parts comprehensively cover skin-related topics, while the third part focuses on hair. The fourth and final part is dedicated to body care. As a token of appreciation, you’ll also gain access to a bonus course at the end of the diploma to further support your learning. Throughout, I will distill years of study, research, and practical experience in the field of medical cosmetics, guiding you towards professional proficiency in this field.
Now that we've completed the first three parts covering skincare and hair care, it's time to embark on the fourth and final part of the diploma — dedicated to body care.
In this part, we’ll explore essential topics including deodorants and antiperspirants, stretch marks, cellulite, and keratosis pilaris, with evidence-based insights and real-world applications.
I’m excited to guide you through this final stage of the journey and help you master the science behind
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Arabic-taught · Lifetime access · Learn at your own pace