Threading is a method of hair removal originating in Asia. In more recent times it has gained popularity in Western countries, especially with a cosmetic application (particularly for removing/shaping eyebrows).
Waxing is a form of semi-permanent hair removal which removes the hair from the root. New hair will not grow back in the previously waxed area for four to six weeks, although some people will start to see regrowth in only a week due to some of their hair being on a different human hair growth cycle.
A facial is a family of skin care treatments for the face, including steam, exfoliation, extraction, creams, lotions, facial masks, peels, and massage. They are normally performed in beauty salons, but are also a common spa treatment.
A semi-permanent hair straightening method done by temporarily sealing a liquid keratin and a preservative solution into the hair with a hair iron. Some versions of these treatments with an excessive amount of formaldehyde have been banned.
Henna can also refer to the temporary body art (staining) based on those dyes (see also mehndi). Henna has been used since antiquity to dye skin, hair and fingernails, as well as fabrics including silk, wool and leather.
Artificial hair integrations, more commonly known as hair extensions or hair weaves, add length and/or fullness to human hair. Hair extensions are usually clipped, glued, or sewed on to other hair by incorporating additional human or synthetic hair.