20 mg, Plant Sourced Silica
  • Healthy Bone Density
  • Beautiful Hair, Skin, and Nails
  • Optimize Collagen*

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Silica is crucial for healthy bones, thick lustrous hair, and strong, flexible joints. But when it comes to supplemental silica, the form you take makes all the difference. Silica-20 provides 20 mg of silica (per serving) gently extracted from horsetail plant (Equisetum arvense) that is harvested at exactly the right time for optimum silica content. This source is one that your body easily and readily utilizes for noticeable benefits.*

The Silica-20 difference:

  • Silica is a must for healthy bone density—and much more
  • Boosts bone absorption of calcium up to 50%
  • Helps optimize collagen—a critical factor for healthy skin, hair, and joints
  • Easily utilized, plant-based silica combined with vitamin D3 for even greater benefits*

Strong Healthy Bones Begin with Silica

Silica Absorption Chart

Cutting-edge science has shown that silica is as important, if not more so, than calcium and magnesium for healthy bone density. In fact, bone formation is dependent on adequate silica.*

Supplement Facts

Serving Size: 2 Tablets
Servings Per Container: 30
Ingredient Amount/Serving Daily Value
Vitamin D3 (cholecalciferol) 200 IU 50%
Horsetail 800 mg **

(Equisetum arvense) Aerial Extract standardized to 20 mg of Silica, with naturally occurring flavonoids

**Daily Value (DV) Not Established

Other Ingredients: tricalcium phosphate, magnesium hydroxide, coating (hydroxypropyl methylcellulose, titanium dioxide, stearic acid, microcrystalline cellulose, chlorophyll), silica, fish (dogfish) oil, vegetable source magnesium stearate, trace minerals (from the sea), maltodextrin, ethylcellulose.

No: sugar, salt, yeast, wheat, gluten, corn, soy, dairy products, artificial coloring, artificial flavoring, or artificial preservatives.

Terry Naturally brand products contain natural and other premium ingredients.

Recommendations: 1-2 tablets twice daily.

If pregnant or nursing, consult a healthcare practitioner before using.


† In vitro evaluation on cultured human bone.

Frequently Asked Questions

Can’t I get silica from food?

There are food sources of silica, but very little of it is absorbed during digestion. In fact, you’d probably have to eat 50 bananas just to get about 8 mg of absorbed silica. So a supplemental source is a must. In fact, in Europe, silica is more popular than calcium for bone support. Considering that silica does even more than support bone density and strength, it is a sensible supplemental choice for joints, hair, skin, and nails, too.*

Is the use of Silica-20 supported by research?

Yes. A randomized, double blind, placebo controlled study of 65 women over 12 months revealed that Silica-20 supported bone health and strength, and that Silica-20 supported a healthy balance of minerals in bone. Another Silica-20 study with 150 individuals showed support for healthy bone-building activity. Doctors reported that in 80 percent of participants, significant indicators of bone health support were evident after 15 days of use, and further gains were measurable after 6 weeks of use.*

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