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Transcript of cosmetic chemistry
1 in 3 people develop
Nothing to worry about
Harmless long hydrocarbon tail with ion head Arbutin Lead in Lipsticks? Trace amounts of
cases with popular brands such as Maybelline and L’Oreal
FDA statements say that there is problem
Would you take the risk Saponification sodium stearate, a common soap
amphipathic properties Chemicals absorb the -> harmless Zinc oxide or titanium oxide sit on
Deflect Foods as natural “ ”
Fat-soluble carotenoids - Sunscreen Purpose:
260-320 Sunscreens Emulsifiers
Contain oily/fatty substances/lipids + water
Emulsifiers act as mediator
Molecules that are attracted to both sides
Lipophilic + Hydrophilic = Ampiphilic
Reduces surface Structure of SLS in soaps
Hydrocarbon binds to and
Ion head binds to
skin irritation….if in hair for Arbutin inhibits tyrosinase which controls synthesis of
Makes less pigment, the skin
Different types of glycosidic bonds between and Consumer Chemistry the science of everyday products Jenny Mu
Amanda Jara Thermodynamics energy and enthalpy are positive s p o n t a n e o s U more interfaces Impacts consistency, feel, care properties BREAKDOWN IS INEVITABLE emulsifiers slooooow it down Basics t e n s i o n LEAD •Tweets
-Correcting the cosmetic scientist
-Components of cosmetic chemicals
- range of topics
•Savvy consumers Potassium hydroxide
used in l i q u i d soaps
solubility Sodium Lauryl Sulfate
-share information with peers
-December = "Compound of the Day"
-connect with other bloggers/tweeters Twitter Beta is extracted
Alpha is produced in
Is newer necessarily better?
are being performed Arbutin - glucose and hydroquinone
From views a day to views
Recognition from and
classmates and Internet users Thank you for watching! NO ??? 400 w i d e fat + base = soap higher (KOH) hydrophobic hydrophilic + rays protect against UVA and UVB rays cause nm level of exposure energy HARMFUL astaxanthin s u r f a c e sunscreens carcinogenic cancer Essential real danger twitter 12 hours educate 1-2 1000+ chemistscorner beautybrains Accomplished a lot! lightens naturally glucose LABORATORIES hydroquinone alpha beta Toxicological tests MELANIN grease oil w ate r twitter: http://twitter.com/advchemyellow1 blog: http://advchemyellow1.blogspot.com/ http://advchemyellow1.blogspot.com/2012/10/lead-in-lipstick.html Results of the FDA study: http://www.fda.gov/cosmetics/productandingredientsafety/productinformation/ucm137224.htm#expanalyses http://advchemyellow1.blogspot.com/2013/02/lets-make-some-soap.html http://advchemyellow1.blogspot.com/2012/12/sunscreen-chemical-vs-physical.html Nanoparticles in sunscreens: http://bit.ly/Nhdjql http://advchemyellow1.blogspot.com/2013/01/lets-mix-oil-and-water.html http://bit.ly/YXWaDR http://bit.ly/Y0JnzC Side effects of SLS: http://advchemyellow1.blogspot.com/2012/11/how-do-skin-lighteners-work-arbutins.html Results from arbutin toxicological tests: http://ntp.niehs.nih.gov/files/Arbutin.pdf How to make soap: http://bit.ly/YET1My Blog Post: Blog Post: http://bit.ly/YEXgYz