glossary

3 A B C D E F H I K L M N O P R S T V W Z

hairline

The hairline refers to the border or line where the hair on the forehead begins to grow. It varies greatly from person to person and can be influenced by various factors...

Hair follicles

Hair follicles are tiny, pocket-shaped structures in the skin from which hair grows. Each follicle houses the root of the hair, consisting of protein cells. With the help of nutrients from the bloodstream produce...

Hair cortex

The hair cortex, or cortex, is the main part of the hair shaft and lies between the outer layer, the cuticle, and the inner core, the medulla (if present). The cortex makes the largest…

Hair cortex

The hair cortex, also called the cortex, is the main part of the hair shaft and lies between the outer layer (cuticle) and the inner core (medulla, if present). The bark makes up the majority…

hair shaft

The hair shaft is the visible part of the hair that protrudes from the skin. It consists of dead tissue formed from keratinized cells that have no living cells or blood vessels…

Hair transplant

A hair transplant is a surgical procedure in which hair follicles are transplanted from a part of the body, known as the “donor area,” to bald or balding areas of the head, known as the “recipient area.”…

Hair types

Hair types are often classified based on the texture and shape of the hair. The most widely used classification was developed by hairdresser Andre Walker and includes four main types: Type…

hair root

The hair root is the part of the hair that is located under the skin and embedded in the hair follicle. It is responsible for the growth of hair and consists of…

Hair bulb

The hair bulb, also known as the hair bulb, is the lower part of the hair root, located in the deepest region of the hair follicle. It has an onion-shaped structure and surrounds the hair papilla,…

Skin types

Skin Types for Facial Treatments Determining skin type is fundamental to effective skin care and protecting skin health. Skin types are usually divided into five main categories: 1. Normal Skin Characteristics:…

herpes infection

Herpes infections are caused by the herpes simplex virus (HSV) and manifest in two main types: herpes simplex virus type 1 (HSV-1) and herpes simplex virus type 2 (HSV-2). HSV-1 is in the…

Witch hair

Witch hair, also known as terminal hair or simply strong, thick hair, refers to the longest, thickest, and darkest hair on the body. The term is sometimes used colloquially to mean unusual...

Hirsutism

Hirsutism is a condition characterized by excessive growth of dark, coarse hair in women in a male pattern. This can include the growth of facial hair (chin and upper lip),…

Hormones

Hormones are chemical messengers that are produced by the endocrine glands in the body and released into the bloodstream. They travel throughout the body and act on specific target cells or organs,…

HR method

In the context of hair removal, the abbreviation “HR” typically stands for “Hair Removal”. A specific “HR method” can refer to various technologies and procedures used to remove unwanted body hair…

Hypertrichosis

Hypertrichosis is a rare condition characterized by excessive hair growth in areas of the body where little to no hair normally grows. This excessive hair growth can either be congenital (from birth...

Hypertrichosis

Paradoxical hair growth, also known as hypertrichosis, refers to the phenomenon in which, after hair removal treatment, particularly laser treatments or light therapies, instead of the expected hair reduction, there is increased hair growth in the…

Hypotrichosis

Hypotrichosis refers to a condition in which there is abnormally sparse hair growth. In contrast to alopecia, in which hair that previously grew normally falls out, hypotrichosis is caused by…

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