Biology
One Hylora inside-out skin health model. Explore how the visible barrier, structural layers and functional systems work together, and how the final Hylora range maps to each story with careful support language.
The epidermis is the skin's visible outer layer. It includes the stratum corneum, which acts as the first-line protective barrier, and the living epidermal layers beneath it, where keratinocytes renew upward and melanocytes influence visible tone. It helps reduce water loss, helps defend against external irritants, and strongly influences visible smoothness, dryness, dullness, clarity and radiance.
UV exposure, pollution, harsh cleansing, over-exfoliation, low humidity, heat and cold stress, smoking, dehydration, picking, acne-related irritation, inflammation, hormonal pigmentation triggers and overuse of aggressive actives can all stress this visible layer. Sun exposure contributes to visible uneven tone, spots and wrinkles over time.
The epidermis is avascular, so it receives nutritional support by diffusion from the dermis below. It needs hydration, water-binding molecules, barrier lipids, ceramides, cholesterol, fatty acids, amino acids, zinc, vitamin C, vitamin E and nutrients that support normal keratin formation and barrier function.
Dermal Repair Complex is the primary surface-barrier match because this layer needs moisture retention and barrier support. Niacinamide + NAG Clarity maps to visible clarity and the appearance of uneven tone. Radiance Shield C + E maps to antioxidant radiance support for the exposed surface. PhotoDefense System supports the inside-out environmental-stress story, but it complements and does not replace SPF or responsible sun protection.
The epidermis is the visible shield. When it is well supported, skin can look smoother, calmer and more luminous. Hylora supports this layer through barrier care, clarity actives, antioxidant defence and internal environmental resilience.
Education only. Hylora product language is cosmetic and supportive. PhotoDefense System complements SPF and responsible sun protection; it does not replace sunscreen.
Anatomical zone
The epidermis is the skin's visible outer layer. It includes the stratum corneum, which acts as the first-line protective barrier, and the living epidermal layers beneath it, where keratinocytes renew upward and melanocytes influence visible tone. It helps reduce water loss, helps defend against external irritants, and strongly influences visible smoothness, dryness, dullness, clarity and radiance.
Anatomical zone
The dermis is the structural layer of the skin. It contains collagen, elastin, fibroblasts, blood vessels, nerves, hair follicles, sweat glands and sebaceous glands. It influences firmness, elasticity, bounce, hydration support, resilience and the visible quality of ageing.
Anatomical zone
The hypodermis, or subcutaneous layer, sits beneath the dermis. It contains mainly adipose tissue and connective tissue, helping with cushioning, insulation, contour support and protection from mechanical impact. It is not the main target of topical skincare, but it influences how skin looks structurally.
Functional system
This is not a separate skin layer. It is the delivery and responsiveness system that runs through the dermis and hypodermis. Blood vessels deliver oxygen, nutrients and immune support, while nerves support sensation, responsiveness and environmental feedback.
Functional system
The extracellular matrix is not a separate skin layer; it is the supportive scaffold within the dermis. It includes collagen, elastin, glycosaminoglycans, hyaluronic-acid-rich hydration space and water-binding structures that influence visible firmness, elasticity, smoothness and resilience.
