Download or read book The Science Behind Skin Care: written by Kelsey Hayden and published by Independently Published. This book was released on 2020-05-04 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: For Estheticians understanding the science of different ingredient types is crucial. This book breaks down and explains the biological chemistry concepts of common skin care ingredient types to assist Estheticians in their understanding of skin care science.