cleanser

WordNet

purge of an ideology, bad thoughts, or sins; "Purgatory is supposed to cleanse you from your sins"
clean ones body or parts thereof, as by washing; "clean up before you see your grandparents"; "clean your fingernails before dinner" (同)clean

PrepTutorEJDIC

洗剤(せっけん,磨き粉など)(detergent)
…'を'消毒する / (罪などを)〈人・人の心など〉‘から'洗い落として清める《+『名』+『of』(+『from』)+『名』》

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/04/11 18:43:31」(JST)

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[Wiki en表示]

A cleanser is a facial care product that is used to remove make-up, dead skin cells, oil, dirt, and other types of pollutants from the skin of the face. This helps to unclog pores and prevent skin conditions such as acne. A cleanser can be used as part of a skin care regimen together with a toner and moisturizer.

Using a cleanser to remove dirt is considered to be a better alternative to bar soap or another form of skin cleanser not specifically formulated for the face for the following reasons:

Bar soap has a high pH (in the area of 9 to 10), and the skin's surface pH is on average 4.7.^[1] This means that soap can change the balance present in the skin to favor the overgrowth of some types of bacteria, increasing acne.
Bar cleansers have thickeners that allow them to assume a bar shape. These thickeners can clog pores, leading to acne.^{[citation needed]}
Using bar soap on the face can remove natural oils from the skin that form a barrier against water loss. This causes the sebaceous glands to subsequently overproduce oil, a condition known as reactive seborrhoea, which will lead to clogged pores.^{[citation needed]} In order to prevent drying out the skin, many cleansers incorporate moisturizers.

Types of facial cleansers

Different types of cleansers have been developed for people with different skin types. Active cleansers are more suitable for oily skins to prevent breakouts. But they may overdry and irritate dry skin, this may make the skin appear and feel worse. Very dry skin may require a creamy lotion-type cleanser. These are normally too gentle to be effective on oily or even normal skin, but dry skin requires much less cleansing power. It may be a good idea to select a cleanser that is alcohol-free for use on dry, sensitive, or dehydrated skin.

Some cleansers may incorporate fragrance or essential oils. However, for some people, these cleansers may irritate the skin and often provoke allergic responses. People with such sensitivity should find cleansers that are pH-balanced cosmetic balanced, contain fewer irritants, suit many variating skin types, and do not make the skin feel dehydrated directly after cleansing. Tight, uncomfortable skin is often dehydrated and may appear shiny after cleansing, even when no sebum is present. This is due to the taughtening and 'stripping' effect some cleaners can have on the skin. One should discontinue use of a cleanser that upsets the balance of the skin; cleansers should work with the skin not against it. Finding the right cleanser can involve some trial-and-error.

References

^ Lambers H, Piessens S, Bloem A, Pronk H, Finkel P (October 2006). "Natural skin surface pH is on average below 5, which is beneficial for its resident flora". International Journal of Cosmetic Science 28 (5): 359–70. doi:10.1111/j.1467-2494.2006.00344.x. PMID 18489300.

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English Journal

Several cases of work-related allergic contact dermatitis caused by isocyanates at a company manufacturing heat exchangers.

Engfeldt M, Isaksson M, Zimerson E, Bruze M.SourceDepartment of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, 205 02 Malmö, Sweden.
Contact dermatitis.Contact Dermatitis.2013 Mar;68(3):175-80. doi: 10.1111/j.1600-0536.2012.02167.x. Epub 2012 Oct 10.
Background. A 43-year-old woman was referred by her occupational health service with suspected occupational contact dermatitis. In connection with the investigation, a workplace visit was undertaken at her company, which used an adhesive based on pre-polymeric diphenylmethane diisocyanate in one of
PMID 23046053

Adding denture cleanser to microwave disinfection regimen to reduce the irradiation time and the exposure of dentures to high temperatures.

Senna PM, Sotto-Maior BS, Silva WJ, Del Bel Cury AA.SourceDepartment of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil Department of Implantology, Sacred Heart University, Bauru, São Paulo, Brazil.
Gerodontology.Gerodontology.2013 Mar;30(1):26-31. doi: 10.1111/j.1741-2358.2012.00641.x. Epub 2012 Mar 16.
Background: The microwave energy is an efficient disinfection method; however, it can generate high temperatures that can result in distortion of the dentures. objectives: To evaluate whether the addition of an enzymatic cleanser to microwave disinfection regimen would disinfect dentures with
PMID 22420329

Absorption of triphenylmethane dyes Brilliant Blue and Patent Blue through intact skin, shaven skin and lingual mucosa from daily life products.

Lucová M, Hojerová J, Pažoureková S, Klimová Z.SourceSlovak University of Technology, Faculty of Chemical and Food Technology, Institute of Biotechnology and Food Science, Laboratory of Cosmetology, Radlinského 9, SK-812 37 Bratislava, Slovak Republic.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association.Food Chem Toxicol.2013 Feb;52:19-27. doi: 10.1016/j.fct.2012.10.027. Epub 2012 Nov 2.
Currently, there is evidence of health risks of triphenylmethane dyes after systemic absorption. This paper investigates the fate of Brilliant Blue (BB) and Patent Blue (PB) after 24-h in vitro diffusion, firstly through intact and secondly through shaven pig-ear skin (stored by freezing) from four
PMID 23127598

Japanese Journal

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Fragrance journal = フレグランスジャーナル 44(7), 45-50, 2016-07
NAID 40020913278

P-74 固定化抗菌剤Etakの義歯洗浄剤としての応用(臨床応用,一般講演(ポスター発表),第66回日本歯科理工学会学術講演会)

日本歯科理工学会誌 34(5), 418, 2015-09-15
NAID 110009985382

Method of Producing Flat Skin and Skeleton Specimens of Laboratory Mice for Exhibition at a University Museum

Shimane journal of medical science 32(1), 37-43, 2015-09-01
NAID 120005665885

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[1] Lambers H, Piessens S, Bloem A, Pronk H, Finkel P (October 2006). "Natural skin surface pH is on average below 5, which is beneficial for its resident flora". International Journal of Cosmetic Science 28 (5): 359–70. doi:10.1111/j.1467-2494.2006.00344.x. PMID 18489300.

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