Words to Know | |
A useful and continually updated glossary of spa terms. | |
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| There are 29 entries in the glossary. | |
| Pages: 1 | |
| Term | Definition |
| Hair bulb | The lower extremity of the hair |
| Hair density | The number of hairs per square inch on the scalp or body |
| Hair follicle | The depression of the skin containing the root |
| Hair root | The part of the hair contained within the follicle |
| Hair shaft | The portion of the hair that projects beyond the skin |
| Heart attack | a sudden, serious, painful, and sometimes fatal interruption of the heart’s normal functioning, especially due to a blockage in the coronary artery |
| HGH | Human Growth Hormone, a hormone produced by the anterior pituitary gland and promotes growth in humans |
| High Frequency | (HF) radio frequencies are between three and 30MHz; also known as the decameter band or decameter wave as the wavelengths range from one to 10 decameters; shortwave (2.310 to 25.820MHz) overlaps and is slightly lower than HF |
| Hirsuate | Hairy; having coarse, long hair |
| Hirsutism | A term reserved for females in reference to face an body hair that has masculine characteristics |
| Homeopathy | A system for treating disease based on the administration of minute doses of a drug that in massive amounts produces symptoms in healthy individuals similar to those of the disease itself |
| Homeostasis | The tendency of an organism or cell to regulate its internal conditions, such as the chemical composition of its body fluids, so as to maintain health and functioning, regardless of outside conditions. |
| Hormones | Substances secreted by various organs that regulate the growth, metabolism |
| Hostile environment sexual harassment | occurs when unwelcome sexual conduct unreasonably interferes with an individual’s job performance or creates a hostile, intimidating, or offensive work environment even though the harassment may not result in tangible or economic job consequences, that is, the person may not lose pay or a promotion; employers, supervisors, coworkers, customers, or clients can create a hostile work environment |
| HTML | the markup language used for creating documents on the World Wide Web |
| Human Growth Factor | A naturally occurring family of complex hormones that are produced by the body to regulate cell growth and division in skin, blood, bone, and nerve tissue. They also can influence the growth rate of some cancers. HGFs are also synthesized and used in medicine for a range of applications, including wound healing and immune system stimulation. |
| Humectant | A substance that promotes retention of moisture |
| Hyaluronic | Hydrophilic agent with excellent water-binding properties |
| Hydrocarbon | Any compound composed only of hydrogen and carbon |
| Hydrocortisone | The hormone produced by the adrenals that can also be created synthetically. It has potent anti-inflammatory properties for skin, but prolonged use can destroy collagen in the skin and cause skin fragility |
| Hydrophilic | “water loving” Hydrophilic compounds dissolve easily in water, and are usually polar, which means they and have a positive or negative charge |
| Hydrophobic | “water fearing”-Hydrophobic compounds do not dissolve easily in water, and are usually non polar. Oils are hydrophobic in their chemical makeup |
| Hydroquinone | A skin-bleaching ingredient to suppress melanin |
| Hyperpigmentation | Darkening of the skin |
| Hypertrophic | A nontumorous enlargement of an organ or a tissue |
| Hypoallergenic | Term used by the cosmetics industry to lead consumers to believe they are using a product that will not cause them to have an allergic or sensitizing skin reaction to a product. However, the word "hypoallergenic" is not regulated in any manner by the FDA and it is therefore used indiscriminately by cosmetics companies without any substantiation or need to show proof of the claim |
| Hyponychium | The area between the nail plate and the fingertip. It is the junction between the free edge of the nail and the skin of the fingertip, also providing a waterproof barrier. |
| Hypopigmentation | A condition caused by a deficiency in melanin formation or a loss of pre-existing melanin |
| Hypothalamus | The part of the brain that regulates metabolic processes and regulates body temperature, emotions, hunger sensations, etc. The hypothalamus strongly influences the pituitary gland. |
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