by Dr. Kaplan (http://www.carefair.com/Skincare/Anti-Aging/About_Skin_Aging_1217.html)
But I have identified a new category of aging. I named this 3rd type of aging, "Hormonal Aging," where decreasing estrogen causes less Collagen, Elastic tissue, and Hyaluronic Acid to be made. This type of aging, unique to women, is separate and cumulative to the other forms of aging.
My research reveals that Hormonal Aging causes 12 distinct skin symptoms such as thinning skin; dehydrated dry sensitive skin; acceleration of fine lines and wrinkles; decreased elasticity and firmness; flushing and uneven skin pigmentation; occasional itchiness or breakouts; photosensitivity; and unwanted facial hair growth. It is my belief that if women address Hormonal Aging early, these symptoms could be reduced or delayed, preventing early severe damage.