The following is from:
The Skin Type Solution 2006 by
Dr Leslie Baumann MD Dermatologist
http://www.baumannstore.com/ Or you might be able to get her book from the library at no cost.
Which of the 16 skin types are you?
Dry (D) vs. Oily (O)
Oily skin appears shiny, and those who have it may prefer gel- or powder-based cosmetic products, as moisturizers feel greasy. Dry skin may appear dull and rough; dry skin types find moisturizer soothing and gravitate toward creamy makeup. Many people assume this parameter is solely affected by oil production, but the condition of your skin barrier - the moisture-retaining outer layer of skin - is equally important.
Sensitive (S) vs. Resistant ®
Sensitive skin flushes easily and may become red and irritated at the slightest deviation from its standard routine; it may also be prone to acne and eczema. While resistant skin sounds like an unqualified blessing, people with this type often need to use stronger products to penetrate their skin and achieve the desired effect.
Pigmented (P) vs. Non-Pigmented (N)
Some people believe that pigmented types are always dark-skinned, which is absolutely not the case. Anyone who experiences unwanted dark spots - melasma, sun spots, or freckles for example - is a pigmented type - in fact, 21% of visits to the dermatologist are for treatment of dark spots.
High pigment levels can lead to unsightly dark spots that don’t fade for months.
Dark spots can develop from cuts, inflammation, acne and increased Estrogen levels.
Examples are: Melasma (mask of pregnancy), Solar Lentigo (sun exposure and sun burns) and Ephelides (freckles).
Sun exposure accelerates skin’s tendency to produce pigment that creates dark spots, Melasma, sun spots and freckles.
As well, excessive heat/sun tanning can result in inflammation – which leads to dark spots where acne once was.
Avoid waxing, depilatories (Nair), peels, razors, spicy foods, saunas and tanning.
Wrinkled (W) vs. Tight (T)
Short of a crystal ball, this parameter is the best indication of how your skin will age, based on both genetic tendencies and lifestyle. You can't do much about your genes, but your daily routine can significantly affect your score on the wrinkled-tight scale: sun exposure, smoking, and poor nutrition, for example, all contribute to skin aging.