This week Reactions takes a look at the science behind how shampoo works. Thanks to chemistry, the products we use to clean and style our hair have evolved over decades — even centuries. How do hairsprays protect your hair while keeping it flexible and light? What’s the deal with sls? How do shampoos work, and why are some people choosing to dump the lather altogether? This week, “Ms. Beautyphile” Trina Espinoza and Lex Fleming from “Made U Look” join us in the New York City YouTube Space to explain the science behind hair care.

0:38 – Scientific content starts

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Virada Cultural 2012 – Old Jazz – Ipiranga & Av Sao Joao by Listening to the City
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Funk by Jack Abrams
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Producer:
Elaine Seward

Writer:
Sophia Cai
Elaine Seward

Executive Producer:
Adam Dylewski

Scientific consultants:
Perry Romanowski
Trina Esponiza
Sophia Cai
Darcy Gentleman, Ph.D.

Sources:
http://www.ehow.com/about_5460777_basic-antidandruff-shampoo-ingredients.html
http://thebeautybrains.com/2007/03/the-shampoo-secret-beauty-companies-dont-want-you-to-know/

Ever wonder why dogs sniff each others’ butts? Or how Adderall works? Or whether it’s OK to pee in the pool? We’ve got you covered: Reactions a web series about the chemistry that surrounds you every day.

Reactions is produced by the American Chemical Society.