lanolin


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lanolin,

greasy, yellow substance extracted from wool. When purified, it is used as a base for ointments and creams, as a lubricant, and in finishing and preserving leather. It is also a constituent of some varnishes and paints. Chemically, lanolin is chiefly a mixture of cholesterol and the esters of several fatty acids. With water it forms an emulsion. As a waste product in wool processing, it is known also as wool wax, wool fat, or wool grease.

Lanolin

 

wool fat, an animal wax obtained by rinsing sheep’s wool; a viscous, brownish-yellow mass.

Lanolin differs from other waxes in its high sterol content (in particular, cholesterol). It is readily absorbed into the skin and has an emollient effect. Lanolin is widely used in the preparation of various cosmetics (for example, skin creams). In medicine it serves as a base for ointments and as a skin softener (in combination with an equal amount of petroleum jelly).

lanolin

[′lan·ə·lən]
(materials)
The hydrous sheep's-wool wax (primarily cholesterol esters of higher fatty acids) derived as a by-product from the preparation of raw wool for the spinner; used as a base for emollients in cosmetics and shampoos.

lanolin

, lanoline
a yellowish viscous substance extracted from wool, consisting of a mixture of esters of fatty acids: used in some ointments
References in periodicals archive ?
Lanolin ointment manufactured by Farabi pharmaceutical company and then filled into the same 20g tubes by pharmacist and handed over to mothers.
The hypodermic glands of sheep release not only fats, but also lanolin substance.
The cream has 33.3% lanolin and 6.6% zinc oxide in a proprietary base.
Toleriane Ultra relies on a calming agent called neurosensine, and contains no preservatives, parabens, fragrance, alcohol, lanolin or colorants.
They weren't allowed to use base coats, oils, ridge fillers, topcoats, products which contain lanolin, or French tips.
Its varnishes use mica pigments in place of guanine and its scrubs and creams use sesame oils and plant-derived vitamin sources rather than lanolin or animalsourced vitamins.
If you have a child whose controlled condition suddenly worsens in their atopic areas, consider these potential culprits: lanolin, neomycin, and bacitracin, she said.
The cosmetic allergens in the standard series and the rates of positivity were as follows: fragrance mix (6.8%), lanolin alcohols (5.5%), paraphenylenedaimine (2.7%), colophony (1.4%), paraben mix (1.4%), formaldehyde (1.4%), and methylchloroisothiazolinone (Kathon CG) in descending order.
Zhejiang Garden Biochemical transforms wool grease into a variety of products - such as lanolin cholesterol, lanolin alcohol and other related products - which are used as raw materials in manufacturing Vitamin D3, as well as active ingredients in the cosmetic, pharmaceutical and animal feed industries.
An RCT involving 177 primiparous women compared four different interventions; warm water compress, milk massaged into the nipple and air-dried, instruction only and modified lanolin. (3,4) The warm water compress group reported the lowest pain intensity and affect on days 7 and 14.
Joke Bouwstra and Robert Rissmann at Leiden University in the Netherlands mixed a range of fatty compounds, including lanolin, fatty acids, ceramides and cholesterol with particles made of a water-storing hydrogel.
Selecting the best knot for a particular design, and relying on the natural lanolin of the wool, the artist-weaver produces a perfectly tightened finished product that will keep its shape for decades while on proud display--not on a wall, but on the floor of a main room frequented by many visitors.