Science
Healthy skin is largely a reflection of good general health. As such the skin’s appearance is influenced by the consumption of dietary supplements, including vitamins and antioxidants, and the effects of nutrition on the skin have received increasing attention. A number of clinical studies have shown that dietary supplementation can improve skin condition, and reverse the signs of ageing.
THE TRUTH ABOUT FACE CREAMS
Studies have shown that topical cosmetics (creams to the surface of the skin) do not have a significant or sustained effect on skin condition.
Xhauflaire-Uhoda et al (4) investigated anti-wrinkle effects of surface-only skin care products and found no evidence of skin moisturizing after stopping treatment. Moreover, the low increase in skin hydration could simply be explained by the normal generation of new corneocystes* from deeper skin layers. They found that the tested creams and lotions did not penetrate deeply into the skin barrier, and that any anti-wrinkle effect could have been the result of the surface film that prevented evaporation. In addition, beyond the questionable effectivity of topical treatments Buraczewska et al. (17) could show that hydro-carbon creams applied to the surface of the skin over a long-term period did not increase skin hydration and led to an impaired skin barrier and an increase in water loss from the skin.
* A corneocyte is a protein complex that is made of tiny threads of keratin that can hold large amounts of water between the fibers/threads.