Encyclopedia
Retinol: The Complete Guide
a vitamin A derivative (a retinoid) and one of the most studied anti-ageing ingredients. It speeds cell turnover and stimulates collagen, helping to smooth fine lines, refine texture, unclog pores...
Retinol: The Complete Guide
a vitamin A derivative (a retinoid) and one of the most studied anti-ageing ingredients. It speeds cell turnover and stimulates collagen, helping to smooth fine lines, refine texture, unclog pores...
Hyperpigmentation Explained
areas of skin that appear darker than the surrounding tone because of excess melanin. Common forms include post-inflammatory hyperpigmentation (after acne or injury), melasma (often hormonal) and sun-induced dark spots.
Hyperpigmentation Explained
areas of skin that appear darker than the surrounding tone because of excess melanin. Common forms include post-inflammatory hyperpigmentation (after acne or injury), melasma (often hormonal) and sun-induced dark spots.
Acne: Causes, Types and Treatment
a common inflammatory condition of the pilosebaceous unit (the pore and its oil gland). It develops when excess sebum, dead skin cells and the bacterium C. acnes clog pores, leading...
Acne: Causes, Types and Treatment
a common inflammatory condition of the pilosebaceous unit (the pore and its oil gland). It develops when excess sebum, dead skin cells and the bacterium C. acnes clog pores, leading...
Understanding Sensitive Skin
skin that reacts easily with stinging, burning, redness, itching or tightness in response to products, environment or friction. Sensitivity can be an inherent trait or a temporary state caused by...
Understanding Sensitive Skin
skin that reacts easily with stinging, burning, redness, itching or tightness in response to products, environment or friction. Sensitivity can be an inherent trait or a temporary state caused by...
How to Determine Your Skin Type
the process of identifying how your skin behaves — typically classed as oily, dry, combination, normal or sensitive — based on oil production, hydration and reactivity. Knowing your type guides...
How to Determine Your Skin Type
the process of identifying how your skin behaves — typically classed as oily, dry, combination, normal or sensitive — based on oil production, hydration and reactivity. Knowing your type guides...
The Skin Barrier Explained
the skin's outermost defensive layer — the stratum corneum — made of flattened skin cells (corneocytes) held together by a mortar of lipids: ceramides, cholesterol and fatty acids. A healthy...
The Skin Barrier Explained
the skin's outermost defensive layer — the stratum corneum — made of flattened skin cells (corneocytes) held together by a mortar of lipids: ceramides, cholesterol and fatty acids. A healthy...
