The one detail that matters: check silica versus elemental silicon, chemical form, source and the exact preparation studied.
SuperDosed provides 950 mg horsetail extract providing 67 mg silica. View the product, or use this guide to compare any UK label first.
Looking for the best silica supplement UK shoppers can buy? Do not compare every milligram as equal. Silica, elemental silicon, soluble orthosilicic acid and horsetail extract describe different measurements and potentially different absorption.
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What to look for | Skin and nails | Hair | Bone and collagen | Dose and timing | Safety | SuperDosed formula
What is Organic Silica?
Silicon is an element found in food, water and connective tissues. Silica usually refers to silicon dioxide or related silicon-oxygen material. Orthosilicic acid is a soluble form that has been used in several human supplement trials.
Absorption varies substantially by chemical form. A human comparison tested foods and multiple supplements, including horsetail and choline-stabilised orthosilicic acid (Sripanyakorn et al., 2009). This is why a larger silica number is not automatically a larger absorbed silicon dose.
Section 1: What to look for before buying Organic Silica in the UK

1. Separate silica from elemental silicon
A label stating 67 mg silica is not stating 67 mg elemental silicon. Compare like with like and look for both the measured substance and its units before ranking strength.
2. Name the source and chemical form
Horsetail extract, colloidal silica and orthosilicic acid are different preparations. Evidence from one should not be pasted onto another simply because all contain silicon.

3. Check the real daily serving
Find the extract weight, declared silica amount, scoops or capsules per day and servings per pack. A scoop can carry a bulky botanical dose, but size alone does not establish bioavailability.
4. Match the claim to the trial
The best-known skin and hair studies used choline-stabilised orthosilicic acid. A horsetail product can discuss those studies as silicon context, but not as direct proof of the finished formula.
Fast buying rule
Buy a clearly measured silicon source and compare equivalent units; reject any page that silently swaps silica, silicon and horsetail evidence.
Section 2: The main questions and the science behind Organic Silica

Can silica improve skin or brittle nails?
Short answer: one small trial found encouraging changes with a specific soluble silicon form, not generic silica or horsetail.
Scientific studies
Fifty women with photodamaged skin received 10 mg elemental silicon per day as choline-stabilised orthosilicic acid or placebo for 20 weeks. The study reported improvements in selected skin mechanical and surface measures, with a signal for nail brittleness (Barel et al., 2005).
The sample was small and the preparation was ch-OSA. It does not establish that 10 mg ch-OSA silicon equals 10 mg from horsetail, or that every silica powder produces the same cosmetic result.
Does silicon make hair stronger?
Short answer: a small nine-month trial reported stronger fine hair, but it again tested choline-stabilised orthosilicic acid.
Scientific studies
Forty-eight women with fine hair received 10 mg elemental silicon as ch-OSA or placebo for nine months. Investigators reported favourable changes in tensile strength and hair morphology (Wickett et al., 2007).
This supports further research, not a promise to stop hair loss. New or rapid shedding can reflect iron deficiency, thyroid disease, medication, hormones or scalp conditions and deserves appropriate assessment.
Does silicon support bones or collagen?
Short answer: there is a biological signal, but trials have not shown a clear stand-alone improvement in bone density.
Scientific studies
In a 12-month trial, 184 osteopenic women were randomised to calcium and vitamin D with 3, 6 or 12 mg elemental silicon as ch-OSA, or placebo. Of 136 completers, one type-I-collagen marker improved at 6 and 12 mg, without a clear dose response (Spector et al., 2008).
Overall lumbar-spine bone density did not significantly improve. The result is best treated as a collagen-marker signal from a combined regimen, not evidence that horsetail silica prevents osteoporosis or fractures.
Who is Organic Silica most likely to suit?
A silica supplement may suit an adult who wants to test a measured beauty or connective-tissue routine and is comfortable with small, form-specific trials. Expectations should be modest and tracked over months.
Hair loss, nail changes, persistent rash, fractures or bone pain can have medical and nutritional causes. A silica product should not delay diagnosis or replace proven osteoporosis care.
What is an evidence-aligned silica dose?
The main beauty trials used 10 mg/day of elemental silicon as choline-stabilised orthosilicic acid. The bone trial used 3 to 12 mg/day of elemental silicon alongside calcium and vitamin D.
SuperDosed provides 950 mg horsetail extract delivering 67 mg silica in two scoops. Because the label measures silica rather than elemental silicon and uses a different source, the 67 mg figure cannot be directly matched to the 10 mg ch-OSA trials.

How long does silica take to work?
The skin study lasted 20 weeks and the hair study nine months. Hair and nails grow slowly, so a same-week judgement is unlikely to be meaningful.
Take consistent photographs under the same lighting and review at roughly three and six months. Stop earlier for adverse effects; do not increase the serving simply because growth is gradual.
Is horsetail silica safe, and what are the side effects?
The EMA horsetail overview recognises Equisetum arvense for traditional urinary uses, not beauty outcomes. It reports possible allergy and mild digestive effects and advises against urinary use when reduced fluid intake is required for severe heart or kidney disease.
A 36-person crossover trial found a diuretic effect from 900 mg/day horsetail extract over four days (Carneiro et al., 2014). Seek advice with diuretics, kidney or heart conditions, pregnancy, breastfeeding or regular medicines.

Why buy Organic Silica from SuperDosed?

SuperDosed provides 950 mg horsetail extract with 67 mg declared silica per daily serving. The two-scoop format carries the botanical amount without several capsules.
The label is specific about extract and silica weight. It does not call 67 mg silica '67 mg elemental silicon' or pretend a horsetail extract is the same preparation as the ch-OSA used in the best-known beauty trials.
That distinction stops a large compound number overstating the elemental amount.
| Label check | SuperDosed declaration | Why it matters |
|---|---|---|
| Source | Horsetail extract | Botanical source is visible |
| Daily extract | 950 mg | The real extract weight is stated |
| Declared amount | 67 mg silica | Not relabelled as elemental silicon |
| Format | Two measured scoops | Avoids multiple capsules |
950 mg horsetail extract. 67 mg declared silica.
950 mg horsetail extract providing 67 mg silica.
Buy SuperDosed Organic Silica UKQuick answers
What is the best silica supplement in the UK?
Choose a product that names the source and chemical form, distinguishes silica from elemental silicon, states the complete daily serving and does not borrow evidence from a different preparation.
Is silica the same as silicon?
No. Silicon is the element; silica is a silicon-oxygen compound. Their milligram figures are not interchangeable, and supplement forms differ in solubility and absorption.
Can I buy SuperDosed Silica in the UK?
Yes. Buy SuperDosed Organic Silica here after comparing its 950 mg horsetail extract and 67 mg silica serving with this guide.
Can silica stop hair loss?
No reliable evidence shows that a horsetail silica supplement treats hair-loss disorders. Small ch-OSA trials examined hair strength, which is a narrower outcome.
Sources and further reading
- EMA: Equisetum arvense overview and safety
- EMA: European Union horsetail monograph
- Barel et al. (2005): skin and nail ch-OSA RCT
- Wickett et al. (2007): fine-hair ch-OSA RCT
- Spector et al. (2008): osteopenia and bone-marker RCT
- Sripanyakorn et al. (2009): comparative silicon absorption
- EFSA (2018): OSA source safety and bioavailability
- Carneiro et al. (2014): horsetail diuretic crossover trial
- Araújo et al. (2016): silicon forms for skin and hair review
- Jugdaohsingh et al. (2013): absorbed silicon-form trial
Editorial note: SuperDosed sells the product discussed. This guide provides general information, not medical advice, and does not claim that Organic Silica prevents, treats or cures disease.
