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Lanolin

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631:(skin smoothing) action produced by lanolin is very significant and lasts for many hours. Lanolin applied to the skin at 2 mg/cm has been shown to reduce roughness by about 35% after one hour and 50% after two hours, with the overall effect lasting for considerably more than eight hours. Lanolin is also known to form semiocclusive (breathable) films on the skin. When applied daily at around 4 mg/cm for five consecutive days, the positive moisturising effects of lanolin were detectable until 72 hours after final application. Lanolin may achieve some of its moisturising effects by forming a secondary moisture reservoir within the skin. 589:, introduced in July 1976, contained a stipulation that cosmetics which contained lanolin should be labelled to that effect. This ruling was challenged immediately, and in the early 1980s, it was overturned and removed from the directive. Despite only being in force for a short period of time, this ruling did harm both to the lanolin industry and to the reputation of lanolin in general. The Cosmetics Directive ruling only applied to the presence of lanolin in cosmetic products; it did not apply to the many hundreds of its different uses in dermatological products designed for the treatment of compromised skin conditions. 48: 370: 385:
It is frequently used in protective baby skin treatment and for sore nipples from breastfeeding but health authorities recommend alternative methods first, including nipple cleaning and improving baby positioning as well as expressing milk by hand. Lanolin is reported to have soothing properties but
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Lanolin’s complex composition of long-chain esters, hydroxyesters, diesters, lanolin alcohols, and lanolin acids means in addition to its being a valuable product in its own right, it is also the starting point for the production of a whole spectrum of lanolin derivatives, which possess wide-ranging
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Lanolin and its many derivatives are used extensively in both the personal care (e.g., high value cosmetics, facial cosmetics, lip products) and health care sectors such as topical liniments. Lanolin is also found in lubricants, rust-preventive coatings, shoe polish, and other commercial products.
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Lanolin attracted attention owing to a misunderstanding concerning its sensitising potential. A study carried out at New York University Hospital in the early 1950s had shown about 1% of patients with dermatological disorders were allergic to the lanolin being used at that time. By one estimate,
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A second monograph also introduced into the US Pharmacopoeia XXII in 1992 was entitled 'Modified Lanolin'. Lanolin conforming to this monograph is intended for use in more exacting applications, for example on open wounds. In this monograph, the limit of total pesticides was reduced to 3 ppm
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and glycerol. In a small clinical study conducted on volunteer subjects with terribly dry (xerotic) hands, lanolin was shown to be superior to petrolatum in reducing the signs and symptoms of dryness and scaling, cracks and abrasions, and pain and itch. In another study, a high purity grade of
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Lanolin is a relatively common allergen and is often misunderstood as a wool allergy. However, allergy to a lanolin-containing product is difficult to pinpoint and often other products containing lanolin may be fine for use. Patch testing can be done if a lanolin allergy is suspected.
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Some very high-purity grades of lanolin surpass monograph requirements. New products obtained using complex purification techniques produce lanolin esters in their natural state, removing oxidative and environmental impurities resulting in white, odourless,
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An estimated 8,000 to 20,000 different types of lanolin esters are present in lanolin, resulting from combinations between the 200 or so different lanolin acids and the 100 or so different lanolin alcohols identified so far.
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introduced pesticide residue limits into its lanolin monograph. This requirement, which is generally regarded as the new quality standard, extends the list of pesticides to 40 and imposes even lower concentration limits.
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cannot adhere. Commercial products (e.g. Lanocote) containing up to 85% lanolin are used to prevent corrosion in marine fasteners, especially when two different metals are in contact with each other and saltwater. The
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this simple misunderstanding of failing to differentiate between the general healthy population and patients with dermatological disorders exaggerates the sensitising potential of lanolin by 5,000–6,000 times.
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will produce about 250–300 ml of recoverable wool grease. Lanolin is extracted by washing the wool in hot water with a special wool scouring detergent to remove dirt, wool grease (crude lanolin),
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formed by lanolin are identical to those formed by human stratum corneum lipids. The incorporation of bound water into the stratum corneum involves the formation of multilamellar vesicles.
236:(AHAs). The use of AHAs in skin care products has attracted a great deal of attention in recent years. Details of the AHAs isolated from lanolin can be seen in the table below. 1383: 511:(usually 99%), the ethanol acts as a carrier which evaporates quickly after application, leaving a fine film of lanolin behind to prevent brass seizing in resizing dies. 781: 1129:
Wang, I. J.; Lin, I. C.; Hou, Y. C.; Hu, F. R. (2007). "A comparison of the effect of carbomer-, cellulose- and mineral oil-based artificial tear formulations".
1061: 1570: 1322: 1376: 851: 814: 1029: 486: 38: 1560: 798: 886:"Comprehensive view on chemistry, manufacturing & applications of lanolin extracted from wool pretreatment,also used in vitamins" 1369: 727: 554:(i.e. 40 mg/kg) total pesticides was stipulated for lanolin of general use, with no individual limit greater than 10 ppm. 232:; they have been used extensively in skincare products for over 100 years. Approximately 40% of the acids derived from lanolin are 592:
Modern analytical methods have revealed lanolin possesses a number of important chemical and physical similarities to human
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lanolin. These ultra-high-purity grades of lanolin are ideally suited to the treatment of dermatological disorders such as
357:(sweat salts), and anything else stuck to the wool. The wool grease is continuously removed during this washing process by 610: 900: 669: 543: 1050: 142:
Lanolin's role in nature is to protect wool and skin from climate and the environment; it also plays a role in skin (
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Arden Jones, M. R.; Steel, I.; Powell, S. M. (July 2002). "British Contact Dermatitis Group: Summaries of Papers".
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In addition to general purity requirements, lanolin must meet official requirements for the permissible levels of
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property aids sheep in shedding water from their coats. Certain breeds of sheep produce large amounts of lanolin.
146:) hygiene. Lanolin and its derivatives are used in the protection, treatment, and beautification of human skin. 872:
to produce aminoalcohols. The process is also adaptable to produce specialty aminoalcohols from other epoxides.
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therapy to reduce irritation with masks, particular nasal pillow masks that can often create sore spots in the
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has shown that lanolin, like human stratum corneum lipids, consists of a mass of liquid crystalline material.
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lanolin was found to be significantly superior to petrolatum in assisting the healing of superficial wounds.
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separators, which concentrate it into a waxlike substance melting at approximately 38 °C (100 °F).
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Clark, E. W.; Steel, I. (1993). Poster No. 2 (Report). Washington, DC: American Academy of Dermatology.
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The barrier repair properties of lanolin have been reported to be superior to those produced by both
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Agence Nationale d'Accréditation et d'Évaluation en Santé (French Health Authority) (May 2022).
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Crude lanolin constitutes about 5–25% of the weight of freshly shorn wool. The wool from one
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of lanolin yields lanolin alcohols and lanolin acids. Lanolin alcohols are a rich source of
354: 1483: 869: 635: 593: 430: 421: 407: 191: 102: 47: 1565: 1403: 1198: 1173: 946: 929: 865: 571: 434: 358: 210:. Lanolin derivatives obtained from these processes are used widely in both high-value 195: 183: 113: 110: 369: 1554: 1501: 1489: 1476: 1429: 1234: 515: 497: 438: 199: 136: 117: 1158: 1115: 1409: 1189: 468: 350: 203: 1356: 790: 1415: 1351: 977: 527: 225: 215: 171: 1142: 1516: 1433: 507:
in the ammunition reloading process. Mixed warm 1:12 with highly concentrated
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Yellow waxy substance secreted by the sebaceous glands of wool-bearing animals
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properties make it valuable in many applications as a lubricant grease where
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Lanolin is used as a primary lubricating component in aerosol-based brass
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the lack of research leads to the previous recommendations being primary.
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This article is about the sheep grease. For the fictional characters, see
1510: 1392: 1099: 618: 475: 523: 519: 508: 490: 445: 131:(glycerol esters), it is not a true fat. Lanolin primarily consists of 389:
Lanolin is used commercially in many industrial products ranging from
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Skin bioengineering studies have shown the durational effect of the
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total pesticides, with no individual limit greater than 1 ppm.
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XXII published in 1992 was the first to specify limits for 34 named
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A typical high-purity grade of lanolin is composed predominantly of
1174:"Over the counter (OTC) artificial tear drops for dry eye syndrome" 1536: 368: 159: 63: 46: 1253:
Steel, I. (1994). "Lanolin Allergy: Hype or Hypersensitivity?".
464: 397:. Some sailors use lanolin to create slippery surfaces on their 390: 167: 116:
that are raised specifically for their wool. Historically, many
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quaternise: to convert (as an amine) into a quaternary compound
162:(approximately 97% by weight) with the remainder being lanolin 1469: 1361: 467:
garments to make them water and dirt repellent, such as for
1439: 228:(an important skin lipid) and are powerful water-in-oil 1058:
www.forespar.com/products/boat-lubricant-lanocote.shtml
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which help regulate the rate of water loss across the
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from lanolin is used as a raw material for producing
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Riemenschneider, W.; Bolt, H. M. "Esters, Organic".
456:. Anhydrous lanolin is also used as a lubricant for 109:-bearing animals. Lanolin used by humans comes from 1255:Journal of the National Eczema Society (Exchange) 1172:Pucker, A. D.; Ng, S. M.; Nichols, J. J. (2016). 1285: 1283: 1028:National Health Service (UK) (7 December 2020). 930:"Moisturizer allergy: Diagnosis and management" 893:American Journal of Engineering Research (AJER) 752:Barnett, G. (1986). "Lanolin and Derivatives". 713: 711: 709: 707: 782:Ullmann's Encyclopedia of Industrial Chemistry 705: 703: 701: 699: 697: 695: 693: 691: 689: 687: 1377: 1268:Steel, I.; White, I. R.; Beck, M. H. (1995). 1086:Holick, M. F (2007). "Vitamin D deficiency". 934:Journal of Clinical and Aesthetic Dermatology 923: 921: 514:Lanolin, when mixed with ingredients such as 482:. For some people, it can irritate the lips. 8: 1030:"Sore or cracked nipples when breastfeeding" 604:and govern the hydration state of the skin. 53:Centre touristique de la Laine et de la Mode 1315:Journal of the Society of Cosmetic Chemists 928:Zirwas, M. J.; Stechschulte, S. A. (2008). 182:chemical and physical properties. The main 1384: 1370: 1362: 1301: 1299: 1297: 441:with lanolin is popularly used for this). 433:often use it to soften and break in their 1197: 945: 747: 745: 743: 741: 739: 1248: 1246: 1244: 444:Anhydrous liquid lanolin, combined with 238: 1178:Cochrane Database of Systematic Reviews 648: 500:, particularly 'extra-firm' varieties. 485:Lanolin is sometimes used by people on 427:by irradiation with ultraviolet light. 542:residues. The Fifth Supplement of the 120:have referred to lanolin as wool fat ( 7: 1328:from the original on 29 October 2016 854:from the original on 16 January 2021 672:from the original on 4 November 2021 864:Reaction of ammonia or amines with 487:continuous positive airway pressure 51:Wool fat tin (adeps lanae), at the 819:Merriam-Webster Medical Dictionary 658:"Technological aspects of lanolin" 25: 1463:Additional chemicals (E1100–1599) 1131:European Journal of Ophthalmology 906:from the original on 13 July 2019 522:and glycerol, is used in various 496:Lanolin is a popular additive to 1306:Clark, E. W.; Steel, I. (1993). 1235:10.1046/j.1365-2133.147.s62.19.x 1067:from the original on 18 May 2018 615:Cross-polarised light microscopy 526:treatments, for example in some 463:Lanolin can also be restored to 1270:Dilemmas in Lanolin Sensitivity 1088:New England Journal of Medicine 884:Sengupta, Amit; Behera (2014). 1571:Non-petroleum based lubricants 1223:British Journal of Dermatology 1190:10.1002/14651858.CD009729.pub2 530:and in leather care products. 414:would otherwise be a problem. 1: 791:10.1002/14356007.a09_565.pub2 448:, has been used in trials as 127:); however, as lanolin lacks 611:scanning electron microscopy 662:Journal of Cosmetic Science 550:. A total limit of 40  544:United States Pharmacopoeia 101:, is a wax secreted by the 1592: 1143:10.1177/112067210701700202 754:Cosmetics & Toiletries 135:esters instead. Lanolin's 29: 1561:Animal glandular products 1399: 534:Standards and legislation 1459:Miscellaneous (E900–999) 1352:MedlinePlus Encyclopedia 718:Hoppe, Udo, ed. (1999). 656:Malmstrom, Ivar (1949). 474:Lanolin is also used in 401:and stern gear to which 1008:Haute Autorité de Santé 785:. Weinheim: Wiley-VCH. 722:. Hamburg: Beiersdorf. 563:European Pharmacopoeia 374: 313:Alpha-hydroxy anteiso 72: 66: 56: 372: 253:Alpha-hydroxy normal 242:Type of lanolic acid 190:, fractional solvent 50: 1100:10.1056/NEJMra070553 970:"HPA® Lanolin Cream" 578:and on open wounds. 418:7-Dehydrocholesterol 245:Carbon chain length 77:'oil'), also called 55:in Verviers, Belgium 1051:"MSDS for Lanocote" 587:Cosmetics Directive 234:alpha-hydroxy acids 1420:Acidity regulators 375: 283:Alpha-hydroxy iso 248:Number identified 57: 40:Sonic the Hedgehog 1546: 1545: 1453:Flavour enhancers 1447:anticaking agents 1357:Lanolin poisoning 1229:(Suppl. 62): 71. 478:products such as 342: 341: 16:(Redirected from 1583: 1530:polyethylene wax 1484:Improving agents 1477:Synthetic glazes 1386: 1379: 1372: 1363: 1338: 1337: 1335: 1333: 1327: 1312: 1303: 1292: 1291: 1287: 1278: 1277: 1265: 1259: 1258: 1250: 1239: 1238: 1218: 1212: 1211: 1201: 1169: 1163: 1162: 1126: 1120: 1119: 1083: 1077: 1076: 1074: 1072: 1066: 1055: 1047: 1041: 1040: 1038: 1036: 1025: 1019: 1018: 1016: 1014: 1005: 996: 990: 989: 987: 985: 976:. 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BASF. 670:Archived 622:vesicles 491:nostrils 476:lip balm 471:covers. 446:parabens 164:alcohols 87:wool wax 79:wool fat 1523:Lanolin 1404:Colours 1199:5045033 947:3016930 524:leather 520:beeswax 509:ethanol 465:woollen 454:dry eye 60:Lanolin 1539:(E915) 1532:(E914) 1525:(E913) 1519:(E912) 1513:(E910) 1445:& 1432:& 1418:& 1274:Nagoya 1206:  1196:  1157:  1149:  1114:  1106:  1071:17 May 1035:24 May 1013:24 May 954:  944:  858:23 May 829:23 May 797:  764:  726:  598:lipids 576:eczema 480:Carmex 160:esters 133:sterol 114:breeds 62:(from 37:, and 1566:Waxes 1470:Waxes 1326:(PDF) 1311:(PDF) 1155:S2CID 1112:S2CID 1065:(PDF) 1054:(PDF) 1004:(PDF) 904:(PDF) 889:(PDF) 668:(4). 355:suint 168:acids 158:waxy 125:lanae 123:adeps 97:, or 74:oleum 64:Latin 1334:2016 1204:PMID 1182:2016 1147:PMID 1104:PMID 1073:2018 1037:2023 1015:2023 986:2014 952:PMID 912:2018 860:2011 831:2011 795:ISBN 762:ISSN 724:ISBN 678:2021 214:and 206:and 107:wool 68:lāna 1231:doi 1227:147 1194:PMC 1186:doi 1139:doi 1096:doi 1092:357 942:PMC 868:or 787:doi 758:101 552:ppm 278:12 105:of 1557:: 1440:pH 1428:, 1355:: 1319:44 1317:. 1313:. 1296:^ 1282:^ 1243:^ 1225:. 1202:. 1192:. 1180:. 1176:. 1153:. 1145:. 1135:17 1133:. 1110:. 1102:. 1090:. 1060:. 1056:. 1006:. 972:. 950:. 936:. 932:. 920:^ 895:. 891:. 862:. 833:. 817:. 793:. 756:. 738:^ 686:^ 664:. 660:. 518:, 493:. 338:7 331:24 326:–C 322:12 308:6 301:23 296:–C 292:13 271:24 266:–C 262:13 202:, 198:, 194:, 174:. 93:, 89:, 85:, 81:, 1385:e 1378:t 1371:v 1336:. 1276:. 1237:. 1233:: 1210:. 1188:: 1161:. 1141:: 1118:. 1098:: 1075:. 1039:. 1017:. 988:. 958:. 938:1 914:. 897:3 803:. 789:: 768:. 732:. 680:. 666:1 437:( 424:3 317:C 287:C 257:C 44:. 20:)

Index

Adeps lanae
U.S. Acres § Lanolin Sheep
Sonic the Hedgehog (IDW Publishing)

Latin
lāna
oleum
sebaceous glands
wool
domestic sheep
breeds
pharmacopoeias
adeps
glycerides
sterol
waterproofing
integumental
long chain
esters
alcohols
acids
hydrocarbons
derivatisation
hydrolysis
crystallisation
esterification
hydrogenation
alkoxylation
quaternisation
cosmetics

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