usually aesthetic and personal hygiene functions.
With the modern tendency of the customer to
request a cosmetic with some kind of therapeutic
nature, more difficulty is to clarify the role of such
topical preparations. Here, as well as in the vast
majority of circumstances, cosmetics will be concerned
only with the common range of biological
variation of normal skin. Keeping in mind the fact
that skin is composed of a matrix of connective tissue
(epidermis) that rests upon the dermis (confining
the nerves, blood and lymphatic vessels), it is
most likely that lipid-based formulations will be
the most appropriate for topical application of
actives. Containing physiological and biodegradable
lipid ingredients, these formulations resemble
the skin’ structure and therefore no or little disturbances
will occur when applied topically