Skin Encyclopedia

A chronic inflammatory condition arising in the pores and sebaceous glands, appearing in various forms such as comedones, papules and pustules.

A depression or raised area that remains because skin tissue did not recover to its original state after inflammation subsided.

A condition in which hair falls out in round or oval patches with clear borders, known to involve an autoimmune reaction.

Also called male or female pattern hair loss, the most common type of hair loss, involving genetic predisposition and androgen metabolism.

A medicine that temporarily reduces the nerve signal to a muscle, easing excessive muscle contraction.

An injectable preparation using fine particles of a calcium compound that is also present in bone and teeth.

The very small coagulated area created when ultrasound or laser energy gathers heat at a single point within the tissue.

The protein fibre that makes up most of the dermis, responsible for the thickness and supporting strength of the skin.

Inducing the process in which controlled stimulation of the skin clears out old collagen and new collagen is formed.

A state in which the pore opening is blocked and sebum and dead cells have clumped together; the early lesion of acne.

A device or process used in heat-based procedures to lower the skin surface temperature, protecting the epidermis and reducing pain.

A state in which the area under the eyes looks dark; a representative concern for this area, with more than one cause.

The thick layer beneath the epidermis, where supporting fibres such as collagen and elastin gather together with blood vessels, nerves, sebaceous glands and hair follicles.

The recovery period after a procedure during which redness, swelling and marks remain until you return fully to daily life.

A wrinkle that forms when the muscles of expression move, as when smiling or frowning; also called an expression wrinkle.

The elastic fibre of the dermis responsible for the property of stretching and returning.

The outermost layer of the skin, acting as a protective shield against external irritants and water loss.

A very small vesicle secreted by cells, known to be involved in signalling between cells.

A symptom in which the face suddenly reddens and feels hot; when it recurs, the redness can also linger.

A collective term for preparations injected beneath the skin to fill hollowed areas or refine contour.

Small, light brown spots that appear scattered mainly on the face and tend to darken with sun exposure.

A filler made from hyaluronic acid, creating volume by making use of its water-holding property.

The cycle in which hair repeats the process of growing, stopping and falling out, divided into the anagen, catagen and telogen phases.

An approach that gathers ultrasound energy at a single point inside the skin to create heat, inducing contraction and a regenerative response in the tissue.

The basic care such as cleansing, moisturising and sun protection that you continue at home between procedures.

A moisturising substance naturally present in the skin that can attract water amounting to several hundred times its own weight.

A collective term for a state in which melanin has locally increased so that an area looks darker than its surroundings.

The fact that results, recovery speed and duration appear differently from person to person even with the same procedure.

Acne that becomes red and swollen or forms pus, including papules, pustules and nodules.

A method that administers fluids and nutrients intravenously to support the body's condition.

The shedding of corneocytes that have reached the end of their life from the skin surface, or the state in which they have accumulated.

A care approach that uses micro-vibration at a level of several million cycles per second to deliver mechanical stimulation into the skin.

Care that applies light of specific wavelengths to the skin for the purpose of helping calm or recovery.

A brown spot with a relatively clear border; a considerable share of the lesions commonly called sun spots fall into this category.

The line running down from the corner of the mouth towards the chin, named for its resemblance to a puppet's mouth.

The pigment that determines skin colour and protects cells from ultraviolet light.

A brown pigmented lesion that appears mainly on the cheeks, forehead and around the upper lip, close to symmetrical on both sides.

A method that injects medication or nutrients into the middle layer of the skin in small amounts across many points.

An approach that creates fine channels in the skin with very fine needles to provide stimulation or help ingredients penetrate.

An approach in which radiofrequency from a single electrode flows through the body to a return pad, delivering heat to relatively deep layers.

The line running from beside the nose towards the corner of the mouth, known medically as the nasolabial sulcus.

DNA-derived substances extracted and purified from sources such as salmon, dealt with in research related to skin regeneration.

Skin ageing caused by accumulated sun exposure, named to distinguish it from natural ageing with the passage of years.

A biodegradable polymer preparation intended to induce a collagen-producing response as it is gradually absorbed.

The opening of the hair follicle through which sebum emerges, referring to the small visible opening.

A phenomenon in which brown or greyish-brown marks remain where inflammation caused by acne, a wound or a procedure has subsided.

An approach that warms the dermis with the resistive heat generated when a radiofrequency current passes through tissue, inducing a response.

An additional procedure carried out after reviewing the course following the first one, to supplement what is lacking.

A method that injects toxin into the scalp for the purpose of regulating sebum and sweat production and the state of scalp tension.

A chronic inflammatory skin condition arising in areas with high sebum production, appearing on the scalp as dandruff and itching.

The oily substance produced in the sebaceous glands and released onto the skin surface, which prevents water evaporation and protects the surface.

A collective term for the defensive function at the skin surface that prevents water from escaping and blocks external irritants and micro-organisms.

A collective term for preparations injected into shallow layers with the aim of improving the skin's own hydration, texture and firmness rather than creating volume.

A method that injects toxin in small amounts spread widely in shallow layers, with the aim of refining skin texture, pores and sebum condition.

A common term for a method that injects moisturising ingredients such as hyaluronic acid into shallow layers of the skin across many points to replenish hydration.

A state in which the supporting strength of the skin and the tissue beneath it has declined so that it sags downwards.

Short for Superficial Musculo-Aponeurotic System, the fibrous and fascial layer beneath the facial skin that connects to the muscles of expression.

A wrinkle that remains even without making an expression; also called a fixed wrinkle.

The thin layer at the very outside of the epidermis, which retains moisture and blocks irritation with a structure often compared to bricks and mortar.

A product applied to protect the skin from ultraviolet light, indicating the degree of protection with SPF and PA.

A state in which fine blood vessels near the skin surface have dilated so that they show through as red lines or a net-like pattern.

A phenomenon in which a large amount of hair falls out at once a few months after experiences such as childbirth, surgery, rapid weight loss or major stress.

A procedure in which threads that are gradually absorbed by the body are placed beneath the skin to support or draw up tissue.

An anaesthetic in cream form applied to the treatment area in advance to help reduce pain.

A change in which subcutaneous fat and bone volume decrease with age so that the face looks hollowed.