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AnonyMs



Joined: 08 Sep 2005
Posts: 10

PostPosted: Tue Nov 22, 2005 8:07 pm    Post subject: Silica Reply with quote

Is it true that taking silica supports the connective tissues?
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drtodorov
Site Admin


Joined: 10 Dec 2004
Posts: 3255

PostPosted: Tue Nov 22, 2005 10:41 pm    Post subject: Reply with quote

It is true that silicon is essential mineral found, amound other tissues, in the skin. What is unclear is whether supplementing it in the form of silica or other form, orally or topically, has effect on the signs of skin aging. I found only one small study on the subject.

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J Int Med Res. 1993 Jul-Aug;21(4):209-15.

Colloidal silicic acid for oral and topical treatment of aged skin, fragile hair and brittle nails in females.

Lassus A.

Helsinki Research Centre, Finland.

In an open study, women with biologically aged skin and fragile or thin hair, or brittle nails were treated orally with 10 ml colloidal silicic acid (Silicol) once daily for 90 days and applied colloidal silicic acid to the face for 10 min twice daily. Of the 50 subjects treated, three withdrew from treatment after 30 days because of excessive drying of the facial skin due to topical application. In the remaining 47 subjects there was statistically significant improvement in the thickness and turgor of the skin, wrinkles and condition of the hair and nails. The number of mottles also declined, but the change was not statistically significant. Ultrasound measurements did not detect any statistically significant change in the thickness of the epidermis or elasticity of the skin, but there was a significant increase in the thickness of the dermis.


Last edited by drtodorov on Wed Apr 11, 2007 10:33 pm; edited 1 time in total
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merton



Joined: 12 Mar 2006
Posts: 80

PostPosted: Wed Apr 11, 2007 7:35 pm    Post subject: Reply with quote

Terminology is often confusing here. Silicon, silicone and silica are 3 different but related substances or categories. Silicon refers to the single element (atom) which is #14 on the Periodic Table of elements. It doesn't exist by itself in nature but combined with other atoms it accounts for 25% of the earth's crust. See O'lenick, Anthony, Silicones for Personal Care, p.11.

Silica is "silicon dioxide" aka Quartz, and varieties other than the typical single crystal include amethyst, citrine tiger's eye, agate, jasper onxy ect. and last but not least the major constituent of sand. See, Gemological Institute of America, Colored Stone Gemologist Certification Material, vol. 20, pp. 1-4.

Silicones refer to the enormous cross industry silicon containing compounds. The name is actually a historic misnomer as it was thought that the earlier synthesizes silicon polymers were ketones and thus the addition of the "e". Anyway, the name stuck. See O'lenick.

"Silica" as you are refering to it is quartz (SiO2) ground so finely that it forms a gel when suspended in water. Its one of the components in Monistat AC that is so popular here.
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