Product Image

FloraSil

Flora
4.5
★ ★ ★ ★ ★
(1649 ratings)
Silicon 9 mg
Product Image
Score73
A long-supply horsetail silica capsule with simple dosing, but missing extract and soluble-silicon details limit confidence in potency.
How scoring works
Quantity:180 Capsule(s) • (180 servings)
Goals:
Nail Health
Hair Health

Score 73

A long-supply horsetail silica capsule with simple dosing, but missing extract and soluble-silicon details limit confidence in potency.
How scoring works

Also available as

1 option
90 servings Silicon 9 mg • 90 Capsule(s) • 90 servings $30.59 ($0.33 per serving)
$55.84($0.31 per serving)
iHerb
$ 55.84
Vitacost
$ 55.84
Report prices

Analysis

One capsule provides 9 mg silica from horsetail extract in a focused single-ingredient formula. The amount may contribute to connective-tissue support, but evidence is more dependent on the extract’s actual soluble silicon yield than the headline silica number.

The label does not identify the horsetail species, extraction ratio, or standardization. That makes it less predictable than orthosilicic acid or another chemically defined soluble silicon source.

The bottle supplies 180 servings, making it convenient for long-term use. It suits someone who specifically prefers horsetail rather than a user seeking the most precisely characterized silicon form.

Who is it for
  • Adults who prefer plant-derived horsetail silica
  • Users focused on hair or nails
  • People wanting a long one-capsule supply
Best for
  • Plant-derived silica supplementation
  • Long-term one-capsule use
  • Hair and nail structural support

Pros

  • 9 mg silica per capsule
  • Single active ingredient
  • One-capsule serving
  • 180 servings

Cons

  • Horsetail species is not identified
  • No extract ratio or standardization
  • Actual soluble silicon yield is unknown

Nutrient quality

76 High impact

The formula offers partial support but has a dose or purpose-alignment limitation. Form uncertainty or weak secondary amounts reduce confidence in its practical contribution.

Ingredient transparency

81 Highest impact

The listed active ingredients have specific amounts and no proprietary blend hides the core doses. Full use directions and a complete inactive-ingredient list are not supplied.

Customer satisfaction

68 High impact

The aggregate satisfaction signal is strong and the supplied volume is substantial. No specific experience details are supplied to assess repeated complaints or purpose-related outcomes.

Value for money

65 High impact

The core actives provide some quality, but serving value is only modest or weak. Limited targeting, uncertain forms, or a heavy serving reduce competitiveness.

Report analysis

Goals

Nail Health
Nail Health
Impact
High effect
C+ Goal FitC Strength of SupportD CoverageA Formula Quality
Silicon · 9 mg

Silicon provides a relevant route to nail health. Dose or form uncertainty limits confidence in the practical contribution.

The formula remains narrow rather than comprehensive. FloraSil is best viewed as targeted support rather than proof of a clinical benefit.

Study evidence
Silicon Supportive 2 studies
Hair Health
Hair Health
Impact
Moderate effect
C Goal FitC+ Strength of SupportF CoverageA Formula Quality

Horsetail-derived silica may support hair-shaft strength and reduce brittleness. Evidence for visible hair improvement is promising but less established than evidence for correcting iron or zinc deficiency.

The maintenance-level amount is clearly listed, but the extract lacks a ratio or silica standardization. The focused capsule is easy to assess, though a soluble standardized silicon form would provide greater confidence.

Study evidence
Silicon Supportive 2 studies

Ingredients

IngredientAmount per serving
Silica (Horsetail extract)
 9 mg
Gluten Free Adults 18–50 Vegan Vegetarian
Report overview
Silicon (Horsetail extract) · 9 mg OverallScore66
C- Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyA- Value

Horsetail-derived silica offers a recognizable source, and the listed amount converts to a useful maintenance-level elemental silicon dose. The extract lacks a disclosed ratio or silica standardization, so consistency and absorption are less certain than with a standardized or soluble form. FloraSil source recognition and a low cost per serving improve its practical appeal.

View ingredientView products
Loading alternative details
85 Performance

Beauty - Bones - Joints

BioSil
<p>A more capable ingredient profile provides 5 mg of silicon as choline-stabilized orthosilicic acid. Compared with the original’s 9 mg horsetail-silica capsule with no stated extract standardization, it uses a clearly identified, stabilized silicon form with strong alignment to hair and nail goals.</p>
80 Performance

Living Silica Mineral Based Collagen Booster

Orgono
<p>A more capable ingredient profile provides 22.5 mg of silicon as monomethylsilanetriol. Compared with the original’s 9 mg horsetail-silica capsule with no stated extract standardization, it provides a meaningful amount of a well-defined, absorbable silicon form in a focused formula.</p>
83 Performance

Marine Collagen 2500 mg

youtheory
<p>A more capable ingredient profile provides 2.5 g of hydrolyzed fish collagen with vitamin C, zinc, selenium, and horsetail silica. Compared with the original’s 9 mg horsetail-silica capsule with no stated extract standardization, it adds substantial collagen and several disclosed cofactors relevant to hair and nails.</p>
80 Budget

Gelatin & Silicon

Swanson Premium Brand
<p>A lower serving cost still provides 20 mg of silicon aminoate with 1.08 g of gelatin. Compared with the original’s 9 mg horsetail-silica capsule with no stated extract standardization, this option keeps a meaningful silicon amount and adds gelatin for structural protein support.</p>
59 Budget

Daily Total One

Country Life
<p>A lower serving cost still provides horsetail silica plus biotin, zinc, selenium, and other vitamins. Compared with the original’s 9 mg horsetail-silica capsule with no stated extract standardization, this option covers several nutrient pathways linked with normal hair and nail maintenance, though the formula is much less focused.</p>
71 Budget

Oceanic Silica

Solgar
<p>A lower serving cost still provides red-algae silica with calcium. Compared with the original’s 9 mg horsetail-silica capsule with no stated extract standardization, this option provides a simple mineral-based silica source, although the available silicon amount is not stated.</p>
82 Value

Ultra BoneUp

Jarrow Formulas
<p>A useful balance of ingredients and value combines silicic acid, type II collagen, vitamin C, zinc, copper, and manganese with a lower serving cost. Compared with the original’s 9 mg horsetail-silica capsule with no stated extract standardization, it pairs silicon with collagen and supporting nutrients, but its formula is oriented partly toward bone support.</p>
71 Value

Super Silica Plus

KAL
<p>A useful balance of ingredients and value combines 20 mg of colloidal hydrophilic silica, 600 mg of horsetail, 250 mg of MSM, and biotin with a moderate serving cost for the provided formula. Compared with the original’s 9 mg horsetail-silica capsule with no stated extract standardization, it combines a disclosed silica amount with MSM and biotin for broader hair and nail support.</p>
77 Value

Hair Ultra Softgels

OLLY
<p>A useful balance of ingredients and value combines 10 mg of silicon dioxide with keratin, biotin, zinc, and copper with a moderate serving cost for the provided formula. Compared with the original’s 9 mg horsetail-silica capsule with no stated extract standardization, it targets hair and nails through both silicon and keratin-related nutrients rather than silicon alone.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Effect of oral intake of choline-stabilized orthosilicic acid on skin, nails and hair in women with photodamaged skin.
    Barel A; Calomme M; Timchenko A; De Paepe K; Demeester N; Rogiers V; Clarys P; Vanden Berghe D · Archives of dermatological research · 2006
    Randomized trial50 participantsHair Health Nail Health forSilicon
  2. Nail Supplements: When, How, and Why?
    Zaraa I; Richert B · Skin appendage disorders · 2026
    Narrative reviewNail Health forSilicon
  3. Effect of oral intake of choline-stabilized orthosilicic acid on hair tensile strength and morphology in women with fine hair
    R R Wickett, E Kossmann, A Barel, N Demeester, P Clarys, D Vanden Berghe, M Calomme · Archives of Dermatological Research · 2007
    Randomized trial48 participantsHair Health forSilicon