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Organic silicon: what benefits does it offer? Which form should you choose?

If you’re wondering what benefits organic silicon offers, and which form is the best, read on for our summary of this valuable trace-element.

What is organic silicon?

With the chemical symbol Si, silicon has the atomic number 14 in the periodic table. Representing around 26% of the Earth’s crust, it is the planet’s second most abundant element after oxygen (1). It does not, however, exist in a free state in nature but in a compound form, combined with other atoms.

The adult human body contains around 7g of silicon. Concentrated in various tissues (the skin, arteries, thymus …), it is also a trace element that’s important for health. As silicon cannot be produced by the body, it is essentially obtained from the diet, from sources such as mineral water, whole grains, pulses, lettuce, and almonds … (2)

Two main forms of silicon are present in our environment (3):

  • the mineral silicon: found in sand as well as in certain rocks (quartz, opal, amethyst …), it is not water-soluble and is thus very poorly-absorbed by the body;
  • organic silicon: in its natural state, it’s the result of the metabolism of the mineral silicon by the root system of plants. Woody plants, such as bamboo, horsetail, oats and nettles, contain significant amounts. It can also be chemically synthesised in the laboratory, in which case it is water-soluble and offers much better bioavailability.

What benefits does organic silicon offer?

More radiant skin

Organic silicon preserves the skin’s youthfulness and radiance by reducing wrinkles and maintaining hydration. It also plays a role in ensuring beautiful nails and hair (4). As our silicon reserves unfortunately diminish over time, it constitutes an invaluable aid to mature skin.

By way of example, one study of 50 women with sun-damaged skin showed a clear improvement in skin texture following supplementation with a particular form of organic silicon called orthosilicic acid (5).

Ensures bone mineralisation

A key component of bone and connective tissue, organic silicon supports calcium binding. It is found in the osteoid border, where bone is built (6).

Several studies have also examined the effects of increased intake of dietary silicon on bone mineral density in perimenopausal women (7). A number of tests on laboratory animals are also investigating the effects of a lack of silicon on skeleton formation (8).

A defensive boost

A key immune system organ, the thymus contains a significant level of silicon. Located in the upper chest area between the lungs, the thymus gland is involved, in particular, in the maturation of T-lymphocytes (9-10).

Good for the arteries

Did you know that one of the highest concentrations of organic silicon is found in the aorta? As the body’s main artery, this complex structure distributes oxygenated blood from the heart to the organs.

Closely linked to the production of elastin, silicon is believed to modulate the elasticity of blood vessels (11). And as we know, rigidity of artery walls is a key risk factor for cardiovascular disease.

Anti-metal shield

A number of studies have looked at the interactions between aluminium and silicon, and the potential ‘buffer’ effect of the latter on the former (12).

Part of the family of heavy metals, aluminium has a tendency to accumulate in tissues such as the bones, liver, lungs and brain. Known to be toxic at high doses, it may play a role in the development of certain neurological disorders, particularly in people with kidney failure (13).

Which is the best form of organic silicon?

Keen to start supplementing with organic silicon but unsure as to which form to choose?

Three forms are generally used in the production of dietary supplements : solid silicon (silicon dioxide), silicic acid gel and liquid silicon (stabilised orthosilicic acid). However, they do not all offer the same degree of bioavailability.

Stabilised orthosilicic acid is to date the most beneficial form for health because of its high qualitycholine, which itself already serves as a nutrient for cells, but which acts here as a stabiliser, preventing the polymerisation of the orthosilicic acid (in other words, its conversion into substances with a higher molecular mass) (15).

Without choline, the unstable orthosilicic acid would be partly converted into silica gel. This stabilisation thus ensures better absorption in the gut for maximum efficacy.

Looking for a comprehensive organic silicon supplement?

Stabilised by the addition of choline, the liquid silicon supplement Orthosilicic Acid benefits from a synergy of vitamins and minerals which boosts its effects in the body. It contains, in particular, vitamin B12, boron, manganese, zinc (which supports healthy skin and nails) and selenium (which helps to maintain healthy hair and nails) (16-17).

It is also notable for its content of L-carnitine (present in mitochondria, the cells’ powerhouses), and MSM (a precursor of key joint compounds) (18-19).


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  2. Farooq MA, Dietz KJ. Silicon as Versatile Player in Plant and Human Biology: Overlooked and Poorly Understood. Front Plant Sci. 2015 Nov 12;6:994. doi: 10.3389/fpls.2015.00994. PMID: 26617630; PMCID: PMC4641902.
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  10. Thapa P, Farber DL. The Role of the Thymus in the Immune Response. Thorac Surg Clin. 2019 May;29(2):123-131. doi: 10.1016/j.thorsurg.2018.12.001. Epub 2019 Mar 7. PMID: 30927993; PMCID: PMC6446584.
  11. Maehira F, Motomura K, Ishimine N, Miyagi I, Eguchi Y, Teruya S. Soluble silica and coral sand suppress high blood pressure and improve the related aortic gene expressions in spontaneously hypertensive rats. Nutr Res. 2011 Feb;31(2):147-56. doi: 10.1016/j.nutres.2010.12.002. PMID: 21419319.
  12. Bellia JP, Birchall JD, Roberts NB. The role of silicic acid in the renal excretion of aluminium. Ann Clin Lab Sci. 1996 May-Jun;26(3):227-33. PMID: 8726215.
  13. Klotz K, Weistenhöfer W, Neff F, Hartwig A, van Thriel C, Drexler H. The Health Effects of Aluminum Exposure. Dtsch Arztebl Int. 2017 Sep 29;114(39):653-659. doi: 10.3238/arztebl.2017.0653. PMID: 29034866; PMCID: PMC5651828.
  14. Araújo LA, Addor F, Campos PM. Use of silicon for skin and hair care: an approach of chemical forms available and efficacy. An Bras Dermatol. 2016;91(3):331-335. doi:10.1590/abd1806-4841.20163986
  15. Wickett RR, Kossmann E, Barel A, Demeester N, Clarys P, Vanden Berghe D, Calomme M. Effect of oral intake of chol.-stabilized orthosilicic acid on hair tensile strength and morphology in women with fine hair. Arch Dermatol Res. 2007 Dec;299(10):499-505. doi: 10.1007/s00403-007-0796-z. Epub 2007 Oct 25. PMID: 17960402.
  16. Gupta M, Mahajan VK, Mehta KS, Chauhan PS. Zinc therapy in dermatology: a review. Dermatol Res Pract. 2014;2014:709152. doi:10.1155/2014/709152
  17. Tortelly Costa VD, Melo DF, Matsunaga AM. The Relevance of Selenium to Alopecias. Int J Trichology. 2018;10(2):92-93. doi:10.4103/ijt.ijt_37_17
  18. Virmani MA, Cirulli M. The Role of l-Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation. Int J Mol Sci. 2022 Feb 28;23(5):2717. doi: 10.3390/ijms23052717. PMID: 35269860; PMCID: PMC8910660.
  19. Butawan M, Benjamin RL, Bloomer RJ. Methylsulfonylmethane: Applications and Safety of a Novel Dietary Supplement. 2017 Mar 16;9(3):290. doi: 10.3390/nu9030290. PMID: 28300758; PMCID: PMC5372953.


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