Skincare Blueprint: Glow Up From Within
Skincare Formulation Series
At the Heart of the Skin Barrier: Water

At the Heart of the Skin Barrier: Water

Skin Anatomy & Physiology at the Heart of Barrier Function & Hydration

You may already be aware of the importance of skin barrier function—how it can affect the condition of the skin, but how exactly? Skin hydration and the stratum corneum barrier have been active areas of dermatologic research for a good decade. Alongside these developments, consumers are beginning to find their interest piqued about the subject, largely because of the marketing campaigns by industry giants. Before you commit to any product or treatment that promises skin barrier repair, I’ll teach you exactly how to navigate industry jargon so you don’t get confused, worse still, foxed by the deluge of claims—beginning with the basic science of skin.

Check out the podcast episode where I’ll share with you the concept of skin function and importance of skin barrier repair.

The second edition of the skincare bible includes specialised Focus Tutorials on two new modules Skin Resilience & Skin Barrier Repair with extended question and answer practice for advanced practitioners. Get the updated paperback and hardback versions with Dr.TWL’s advanced note-taking template and access to supplementary online learning material.

Skin barrier function – the skin acts as a physical barrier between the internal and external environments to retain moisture and protect the skin against mechanical, chemical and microbial injury; dysfunction of the skin barrier may result in injury, dehydration, infection and inflammation

The Skincare Bible: Strategic Blueprint for Resilient Skin teaches you the art and science of skin barrier repair.

Skin hydration is a critical factor in attaining healthy skin and a measure of any effective skin barrier repair. A mixture of water-soluble compounds called natural moisturising factor (NMF) have been found to affect water content levels. The arrangement of lipids (fats) in the stratum corneum is also important, as it serves as an effective barrier to the passage of water through the layer. A poor arrangement or deficiency in the corneocyte “cement” can lead to increased transepidermal water loss (TEWL). TEWL occurs as water diffuses and evaporates from the skin surface. While this is a physiological process, excess TEWL is undesirable as it can lead to excessively dry skin.

Achieve healthy, radiant skin inside-out—based on principles of skin barrier repair for resilience.

Ceramide for Skin Barrier Repair

Ceramides for Skin Barrier Repair Model
Figure 1.3: Diagram showing brick and mortar skin barrier model

Ceramides are best understood as the cement joining bricks of a wall together. Genetically, people with sensitive/eczema skin types have deficient ceramide content. Additionally, one’s skin barrier can be damaged by the use of harsh cleansers containing laureth sulfates, over-washing or just due to ageing and hormonal influences such as menopause. The use of ceramides in moisturisers is crucial in preventing and repairing skin barrier dysfunction.

Though the mechanisms for skin hydration are complex and beyond the scope of this book, a basic understanding about the skin structure and function is crucial to form the basis for choosing appropriate moisturisers for any skin type. Dermatologist-recommended moisturisers target at least one, if not all of these pathways for effective skin hydration to achieve skin barrier repair. With a myriad of drug-store and luxury beauty brands available, it is a useful guide to determine what may be worth your dollar for your basic moisturiser.

Heal your skin barrier with the best skin barrier repair products recommended at our pharmacy.

Moisturising is a basic step in a skincare routine after cleansing which every one should incorporate. That aside, if you are looking to up your current skincare routine, cosmeceuticals are the buzzword amongst dermatologists. A combination of ‘cosmetics’ and ‘pharmaceuticals’, cosmeceuticals are products with bioactive ingredients that can bring benefits to skin health including skin barrier repair, and are prescribed as adjuncts to anti-ageing treatment.

Skincare Blueprint: Glow Up From Within
Skincare Formulation Series
Access tutorials created as part of the upcoming Skincare Formulation Series, a course created for advanced skincare practitioners. Join Dr.TWL as she imparts her expertise in treating sensitive skin types with advanced skincare routine techniques. Learn to choose cosmeceutical products for non-prescription acne therapy with her holistic approach to beautiful skin inside out.