What is Moisturizer?
[[Image:White Petrolatum1.jpg|thumb|300px|Moisturizer]] A '''moisturizer''' (or '''moisturiser''') is a [[liquid]] that is used for softening the [[skin]], especially for naturally dry skins. They increase the skin's [[water]] content by reducing [[evaporation]].<ref>{{Cite news|url=https://www.health.harvard.edu/newsletter_article/moisturizers-do-they-work|title=Moisturizers: Do they work? - Harvard Health|last=Publishing|first=Harvard Health|newspaper=Harvard Health|access-date=2017-11-10|language=en-US}}</ref> The thickness of a moisturizer is ''actually'' what keeps the hydration concealed into the skin, which then creates the moisturizing effect. Due to its thickening agents, moisturizers typically ''only come in lotion or night cream form''.<ref>{{Cite web|date=2021-06-03|title=What are Moisturizers?|url=https://www.kryzuy.com/serum-vs-moisturizer/|access-date=2021-06-12|language=en-US}}</ref> Unlike a serum, a moisturizer does not penetrate deeply into the skin. The main job of a moisturizer is to seal products into the skin, locking all the moisture and nutrients your skin needs. They can be quite a complicated chemical mixture. They may contain naturally occurring skin [[lipids]] and [[sterol]]s, artificial or natural [[oil]]s, emollients, [[lubricant]]s,etc. Moisturizers are not always needed or used. They are most useful for persons with dry skin. Moisturizers are designed to either impart or restore hydration in the stratum corneum, which is an interactive, dynamic structure, and maintenance of hydration can impact its barrier function.<ref>{{Cite journal|last1=Wan|first1=Derrick C.|last2=Wong|first2=Victor W.|last3=Longaker|first3=Michael T.|last4=Yang|first4=George P.|last5=Wei|first5=Fu-Chan|date=June 2014|title=Moisturizing Different Racial Skin Types|journal=The Journal of Clinical and Aesthetic Dermatology|volume=7|issue=6|pages=25–32|issn=1941-2789|pmc=4086530|pmid=25013536}}</ref> == How they act == Ways that a moisturizer affects the body include: # Occlusives work by forming a thin fil