It is a common sense that fine appearance of the
skin usually reflects good health and human vigour.
Therefore, cosmetic industry is concerned
about not only the elegance of the product (prime
requirement to be purchased), but also the appearance
of the formulation itself, in addition to the
protective and pharmaceutical functions about
which the cosmetic might be advertized. Here, SLN
and NLC play an important role because of their
submicron-size and pearl-like nature.
Protective aspects