ABSTRACT
The formulation of skin care products requires a cross-disciplinary knowledge base, which
can be difficult to obtain. How can any individual obtain the knowledge of a dermatologist,
the expertise of a PhD biochemist, the experience of a cosmetic chemist, and the insight of
a research and development scientist? There is not enough time in one lifetime to master
all of these disciplines. It takes eight years after college to become a dermatologist, at least
five years to obtain a PhD, 10 years to become an experienced cosmetic chemist, and
10 years to mature into a research and development scientist. Thus, after 33 years of work
experience and schooling the cross-disciplinary knowledge base would be complete! This
text aims to condense 33 years into 400 pages, allowing mastery of the field of skin care
formulation by the exchange of knowledge.