Editing Formaldehyde (section)

=== Acute irritation and allergic reaction ===
[[File:Epikutanni-test.jpg|thumb|[[Patch test]]]]

For most people, irritation from formaldehyde is temporary and reversible, although formaldehyde can cause allergies and is part of the standard patch test series. In 2005–06, it was the seventh-most-prevalent [[allergen]] in [[patch test]]s (9.0%).<ref>{{cite journal |vauthors=Zug KA, Warshaw EM, Fowler JF, Maibach HI, Belsito DL, Pratt MD, Sasseville D, Storrs FJ, Taylor JS, Mathias CG, Deleo VA, Rietschel RL, Marks J |s2cid=24088485 |title=Patch-test results of the North American Contact Dermatitis Group 2005-2006 |journal=Dermatitis |volume=20 |issue=3 |pages=149–60 |year=2009 |pmid=19470301 |doi= 10.2310/6620.2009.08097}}</ref> People with formaldehyde allergy are advised to avoid [[formaldehyde releasers]] as well (e.g., [[Quaternium-15]], [[imidazolidinyl urea]], and [[diazolidinyl urea]]).<ref>{{cite web | title = Formaldehyde allergy | url = https://www.dermnetnz.org/topics/formaldehyde-allergy/ | series = DermNet NZ | publisher = New Zealand Dermatological Society |year = 2002 | access-date = 2019-04-25 | archive-url = https://web.archive.org/web/20180923044606/https://www.dermnetnz.org/topics/formaldehyde-allergy/ | archive-date = 2018-09-23 | url-status = dead}}</ref> People who suffer allergic reactions to formaldehyde tend to display lesions on the skin in the areas that have had direct contact with the substance, such as the neck or thighs (often due to formaldehyde released from permanent press finished clothing) or [[dermatitis]] on the face (typically from cosmetics).<ref name="Formaldehyde Releasers">{{cite journal| title=Formaldehyde-releasers: relationship to formaldehyde contact allergy. Contact allergy to formaldehyde and inventory of formaldehyde-releasers| year=2009| journal=Contact Dermatitis| volume=61| pages=63–85| doi=10.1111/j.1600-0536.2009.01582.x| last1=De Groot| first1=Anton C| last2=Flyvholm| first2=Mari-Ann| last3=Lensen| first3=Gerda| last4=Menné| first4=Torkil| last5=Coenraads| first5=Pieter-Jan| issue=2| pmid=19706047| s2cid=23404196| url=https://www.rug.nl/research/portal/en/publications/formaldehydereleasers(c3ff7adf-9f21-4564-96e0-0b9c5d025b30).html| hdl=11370/c3ff7adf-9f21-4564-96e0-0b9c5d025b30| hdl-access=free| access-date=2019-07-08| archive-date=2020-03-13| archive-url=https://web.archive.org/web/20200313130216/https://www.rug.nl/research/portal/en/publications/formaldehydereleasers(c3ff7adf-9f21-4564-96e0-0b9c5d025b30).html| url-status=live}}</ref> Formaldehyde has been banned in cosmetics in both [[Sweden]]<ref>{{Cite web |title=Formaldehyde And Formaldehyde-Releasing Preservatives |url=https://www.safecosmetics.org/chemicals/formaldehyde/ |access-date=2024-06-03 |website=Safe Cosmetics |language=en-US}}</ref> and [[Japan]].<ref>{{cite web | last1 = Hayashida | first1 = Mike | title = The Regulation of Cosmetics in Japan | url = http://www.yakujihou.com/img/CosRegulationJapan.pdf | access-date = 2019-04-25 | archive-url = https://web.archive.org/web/20190414123529/http://www.yakujihou.com/img/CosRegulationJapan.pdf | archive-date = 2019-04-14 | url-status = dead}}</ref>