How Much Silica Per Day? An Honest Answer
Short answer: There is no official recommended daily amount for silica. No reference intake has been established, and no tolerable upper limit either — silicon is not classed as an essential nutrient, so the usual numbers simply do not exist. Supplements typically supply somewhere in the range of 5 to 40 mg a day, and typical dietary intake sits in a broadly similar range. Anyone quoting you a precise daily requirement is inventing it.
What silica actually is
Silica is a compound of silicon and oxygen, and it is abundant in the natural world — in soil, in plants, and in the food that grows in them. Oats, barley, whole grains, green beans, bananas, beer and drinking water are all everyday sources. Supplement forms are usually derived from bamboo extract or horsetail, or supplied as choline-stabilised orthosilicic acid, which differ mainly in how readily the silicon is available.
Why there is no official number
Setting a reference intake requires evidence of a defined requirement and a clear deficiency state — what happens when you do not get enough. For silicon, that evidence has not been established in humans, so no authority has issued a daily value. It also means silica carries no approved health claim wording in the way vitamins and essential minerals do. That is worth saying plainly, because a lot of hair-and-nail marketing treats silica as though it does.
So where do hair, skin and nail claims belong?
With the nutrients that have established wording. Zinc helps keep skin, hair and nails normal. Selenium helps keep hair and nails normal. Biotin helps keep hair normal. Vitamin C helps your body build collagen for skin that works like it should. Silica appears in formulas as a structural trace element and a reasonable inclusion — not as the ingredient carrying the claim. Our guide to the best vitamins for hair and nails after 50 sets out which nutrient does what.
Is a daily silica supplement safe?
Dietary silica is generally regarded as well tolerated, and no upper limit has been set. That said, no upper limit reflects insufficient evidence rather than a licence for large doses, and horsetail-derived products carry their own considerations — horsetail contains thiaminase and is not recommended for long-term unsupervised use or during pregnancy. Modest amounts within the typical supplement range are the sensible approach, and if you take medication or are pregnant, ask your provider before adding it.
Silica in Vyelle
Vyelle Daily Renewal contains 20 mg of silica — a modest amount within the usual supplement range, disclosed on the label like every other dose. It sits alongside 10 mg of zinc, 55 mcg of selenium and 50 mcg of biotin, which are the nutrients that carry the recognised hair, skin and nail wording. Read more on silica for hair, skin and nails, see supplements for nails after 50, or view the full ingredient list.
Related questions
Can you take too much silica?
No tolerable upper limit has been established, and dietary silica is generally well tolerated. But an absent upper limit means the evidence was not there to set one, not that any amount is fine — staying within the typical supplement range is the reasonable position.
Is silica the same as collagen?
No. Silica is a mineral compound; collagen is a protein and is best understood as raw material. They are unrelated ingredients that often appear in the same formulas because both are associated with structural tissue.
Do I need a silica supplement if I eat well?
Probably not on its own. Silica is widespread in whole grains, vegetables and drinking water, so a varied diet supplies it without effort. In a combined formula it is a sensible inclusion rather than something to seek out separately.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This page is general information, not medical advice; consult your healthcare provider before starting any new supplement, especially if you take prescription medication.
