Lanolin anhydrous

Menthol, camphor, or similar substances can be mixed to form a eutectic mixture, which can be absorbed onto wool fat (anhydrous lanolin), and then incorporated into the intended base. If such ingredients are not provided as mixtures, they can be dissolved in warm liquid petrolatum or vegetable oil before being incorporated into the base. 

Masticatory substances are of (11 vegetable origin, or (2) the products I organic synthesis. In the ease of anhydrous lanolin, the suurce is fat from the wool of sheep. 

The land animal waxes are either solid or liquid. Woolwax, derived from the wool of the sheep, is of great economic value. It is better known as anhydrous lanolin, and is of a stiff, soft, solid consistency. The only representative of liquid animal wax is mutton bird oil obtainable from the stomach of the mutton bird. 

The unsaponifiables of woolwax, known as woolwax alcohols, are in considerable demand by cosmetic and pharmaceutical industries. Woolwax has a great affinity for water, of which it will absorb 25 to 30%. Refined woolwax is kneaded with water to produce a water-white, colorless oiiilmenL, known as hydrous lanolin or lanolin USP. Anhydrous lanolin is widely used in cosmetic creams, since it is readily absorbed by the skin. It is also used m leather dressings and shoe pastes, as a superfatting agent for toilet soap, as a protective coating for metals, etc. United States consumption of wool wax is about 1.5 million lb/year. 

Ointments are similar to creams but may be more viscous. Many ointments are prepared from a base of anhydrous lanolin or white petrolatum, which is a mixture ofn-, iso-, and cyclic-paraffins. Waxes may be added to make the ointments harder. 

Lanolin appears to penetrate into the stratum corneum, but remains in the more superficial layers.38 39 Using the tape stripping technique, Clark demonstrated the penetration of anhydrous lanolin (2 mg/cm2) applied to the flexor aspect of the inner forearm.40 Almost all of the applied lanolin was recovered and most was removed in the first 15 strippings. Although the bulk of lanolin may remain in the superficial layers, electron-dense lead linoleate and lead oleate topically applied in lanolin were observed by transmission electron microscopy to be localized in intracellular spaces as far down as the stratum granulosum 40... 

Anhydrous lanolin appears to trap some of the water which is moving through the stratum corneum and spontaneously forms emulsions when placed on the skin for only 5 min.16,31 Cryo-SEM of skin samples following application of lanolin shows vesicles ranging from 0.5 to 300 nm in diameter, which are presumably water droplets that have passed through the skin, subsequently forming a water-in-oil emulsion.16,31,32... 

Lanolin and lanolin alcohols are excellent emulsifiers, giving oil-in-water emulsions, and can be combined with additional emulsifiers such as cetearyl alcohol to improve stability.8 The ability of anhydrous lanolin and especially lanolin alcohols to form stable emulsions with up to 300% (w/w) of water distinguishes lanolin from petrolatum in its physical properties.1 The chemical compositions of lanolin and petrolatum are also very different, as petrolatum is composed completely of hydrocarbons.16 Lanolin alcohols and petrolatum can be combined to form cholesterized petrolatum, which also has the capacity to form emulsions. For example, a mixture of 65% (w/w) lanolin, 20% (w/w) water, and 15% (w/w) petrolatum can incorporate an equivalent weight of water without changing its consistency.15,52... 

Wool (anhydrous lanolin) 36-42 Cholesteryl estolidic esters, alcohol esters of iso- and anteiso acids... 

NaCl, anhydrous lanolin, mineral oil, white petrolatum NaCl, anhydrous lanolin, mineral oil, white petrolamm NaCl NaCl... 

Glucose 40%, usually white petrolatum, anhydrous lanolin... 

Ointments, ophthalmic. Sterile ointments designed for application to the eyelids. Petrolatum, petrolatum-mineral oil, and petrolatum-anhydrous lanolin bases are often used in ophthalmic ointments because of their low irritating potential. Finely powdered, sterile active ingredients are aseptically incorporated into a sterile base, using sterile utensils, and dispensed in sterile ophthalmic-tipped tubes to reduce the possibility of contamination. ... 

Lanolin (the anhydrous material) may be confused in some instances with hydrous lanolin since the USP formerly contained monographs for lanolin and anhydrous lanolin in which the name lanolin referred to the material containing 25-30% w/w of purified water. However, in the USP 28 the former lanolin monograph (hydrous lanolin) is deleted and the monograph for anhydrous lanolin is renamed lanolin . 

A specification for anhydrous lanolin is contained in the Food Chemicals Codex (FCC), where it is described as being used as a masticatory substance in chewing gum base. The EINECS number for lanolin is 232-348-6. 

PCB concentrations in recycled paper products (envelopes, toilet paper, tissue paper, and cardboard boxes) of central European origin were in the range of 5-6,000 pg/kg (ppb) (Welling et al. 1992). PCBs (Aroclor 1254) also were detected in both anhydrous lanolin and lanocerin and in finished cosmetic products produced in Italy (Mariani et al. 1994). PCB concentrations detected in the various products included 1.2 ppm in anhydrous lanolin, 4.8 ppm in lanocerin, 0.64 ppm in anhydrous cream for children,... 

PCBs have been detected in several consumer products manufactured outside the United States, and it has not been determined whether any of these products would be likely to be imported into the United States. Many of these products could be used by children. PCB concentrations detected in various products include 1.2 ppm in anhydrous lanolin, 4.8 ppm in lanocerin, 0.64 ppm in anhydrous cream for children, 0.52 ppm in oil/water emulsion-emollient cream, and 3.8 ppm in water/oil emulsion-emollient cream (Welling et al. 1992). Various fish oils used as dietary supplements were collected from around the world between 1994 and 1995 and analyzed for PCB levels (Jacobs et al. 1998). Researchers found that PCB congeners 138,153, and especially 118 were detected most frequently and in the highest concentrations. None of the samples, however, exceeded the FDA regulatory limit of 2.0 ppm for total PCBs. In fact, total PCB concentrations ranged from <5 to 1,132 pg/L with a mean of 332.0 pg/L (Jacobs et al. 1998). Due to the lack of data concerning the amount of these products that are used by children, it is difficult to determine the degree of importance these items have on a child s exposure to PCBs. 

Anhydrous Lanolin HP-2050. [Henkel/ Emery/Cospha] Lanolin ointments, leather fiiushii soaps, face creams, facial tissues, hair set and sun-tan... 

Clearlan . [Henkel/Emeiy] Anhydrous lanolin emollient for cosmetics. 

Corona. [Qoda Chetiu Ltd.] Anhydrous lanolin condidoning emollient mds-turizer, cosolvent, plasticizer, w/o emulsifier, superfatdng agent wetdng/ dispersing agent for cosmedcs, phar-maceudcals. 

Super Corona. [Croda Inc.] Refined anhydrous lanolin USP supeifatting emollient, emulsifier for cosmetics, pharmaceuticals. 

Ultra Anhydrous Lanolin HP 2060. [Henkel/Emery/Cospha] Lamdin for cosmetics, % prods moisturizer. 

Yeoman. [Croda Chem. Ltd.] Anhydrous lanolin BP emollient for persomd care prods., pharmaceuticals. 

Anhydr lanolin is a yellowish tenacious, semisolid fat slight odor or practically odorless nip 38-42°, Pradically insol in, but mixes with about twice its weight of water, without separation. Sparingly sol in cold more in hot alcohol freely sol in benzene, chloroform, ether carbon disulfide acetone, petr ether. 

Adeps lanae Agnin Agnolin alapurin Anhydrous Lanolin Grade... 

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