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Clinical guide
Skin · hair · nails

Silicon for skin, hair, and nails: firmness, wrinkles, and sagging.

How bioassimilable organic silicon acts against sagging, wrinkles, and hair fragility. Cofactor in the synthesis of type I collagen, elastin, and keratin — the structural network that gives firmness to skin, strength to hair, and resilience to nails. EFSA Novel Food approved.

Wrinkle reduction
−25%
Subjects
51
Duration
5 months
Approval
EFSA Novel
— Ferreira · Cosmetics 2018

«25 % reduction in wrinkles measured with Visia and subjective improvement in hair hydration and skin radiance in 51 subjects after 5 months of regular use»

Silicium G7® Beauty · piel, cabello y uñas
FIG. 01 · Skin-hair-nails
The beauty formula of Silicium
— Approvals and certifications
EFSA
Novel Food 2016
EU
Reg. 2017/2470
OECD
471 · 473 · 474
GLP
NOAEL · toxicological safety
FSSC 22000
GMP production

01 · Dermal matrix anatomy

When skin loses firmness, silicon has already dropped.

When you see the wrinkle, the damage is already years old. When you notice thin hair, the follicle has been without keratin for a long time. Organic silicon is the common cofactor of collagen I, elastin, and keratin — the three proteins that support all three tissues at once.

Collagen decline with age

From age 30 onward: −1 % collagen each year

100% 75% 50% 25% 100 % ~92 % ~65 % ~45 % 20 30 50 70 — AGE (YEARS) —

Data based on skin biopsy studies · Organic silicon provides the cofactor that helps keep synthesis active.

The three tissues · the three proteins

→ Skin · dermis
75 %
Type I collagen

The protein that gives firmness, support, and elasticity to the dermis. Silicon is a cofactor in its assembly.

→ Hair · follicle
95 %
Hair keratin

Hair is practically pure keratin. Silicon strengthens the disulfide bonds that hold it together.

→ Nails · plate
100 %
Nail keratin

Nail keratin is harder and richer in sulfur. Silicon promotes its cohesion and hardness.

Three tissues · one structural cofactor — organic silicon acts on all three in parallel, not separately.

→ on collagen I

Type I collagen synthesis

Silicon is an essential cofactor for the enzymes that assemble type I collagen fibers — the main structural protein of the dermis.

→ elastin and proteoglycans

Skin elasticity and recovery

Silicon stabilizes elastin and proteoglycan fibers, the molecules that allow skin to recover its shape after repeated facial movements.

→ keratin

Stronger hair and nails

Silicon strengthens the bonds that hold keratin together: hair gains thickness and resistance, nails stop splitting.

+ deep hydration

Hydration and barrier function

Silicon strengthens the hyaluronic acid network that retains water in the dermis. More water = radiant skin, fewer fine lines, intact skin barrier.

02 · Recommended product

G7 Beauty · the beauty formula of Silicium.

Organic silicon + biotin + zinc + vitamin C. Four synergistic actives in capsules for skin, hair, and nails from within.

Silicium G7® Beauty · cápsulas piel cabello uñas
G7B · Capsules · 60 units

Silicium G7® Beauty

Capsules with the original Le Ribault formula combined with biotin (hair and nails), zinc (skin regeneration), and vitamin C (collagen synthesis). EFSA Novel Food approved.

Composition per dose
Organic silicon5 mg
Biotin (B7)450 μg
Zinc10 mg
Vitamin C40 mg
Buy G7 Beauty
04 · What people who already take it say

More than 23 years of trust.

Verified real ratings by Trusted Shops · the European trust framework for online commerce.

4.7/5
+5.000
Ratings
25+
Years on the market
05 · What we get asked most

Frequently asked questions about silicon and beauty.

01When will I notice results in skin, hair, and nails taking G7 Beauty?+

The first effects are noticed between 4 and 6 weeks in nails and hair (faster because of their growth rate). In skin, visible changes in firmness and radiance appear from 8-12 weeks. In the Polonini 2019 study (double-blind · 150 days), a −25 % reduction in wrinkles (Visia, Ferreira 2018) and subjective improvement in hair hydration and skin radiance were measured after 5 months.

02Is it useful for alopecia or only for thinning hair?+

G7 Beauty provides the cofactors the follicle needs to synthesize keratin (silicon + biotin + zinc), but it does not treat androgenetic alopecia or other hair loss caused by hormonal or autoimmune factors. If you have a diagnosis of alopecia, consult your dermatologist to coordinate it with your treatment.

03Can I combine G7 Beauty with hydrolyzed collagen?+

Yes, they are synergistic. Hydrolyzed collagen provides the amino acids (peptides), and organic silicon provides the cofactor that activates the enzymes that assemble the new fibers. Taking both strengthens the full synthesis cycle. No documented interactions in 23 years.

04What is the difference between G7 Beauty and G7 Original for skin?+

G7 Beauty is the specific formula with added biotin + zinc + vit C for hair, nails, and skin. G7 Original is the liquid base that covers the full systemic effect (bones + joints + skin at the same time). If your priority is aesthetics, G7 Beauty. If you want a global effect, G7 Original.

05Is it useful for brittle nails or only preventive?+

It works for both. In already brittle nails, silicon + biotin improve keratin structure in 6-8 weeks (the time it takes the nail to grow from the base). For preventive maintenance, 1 capsule a day continuously is enough.

06What dose of G7 Beauty should I take?+

The standard dose is 2 capsules a day, one with breakfast and one with lunch. For preventive maintenance, 1 capsule daily is enough. Always read the instructions on the package and, if in doubt, consult your healthcare professional.

Who is behind it

The team that backs this page.

The content is signed by the person who writes it and the person who reviews it.

Author

Juan Carlos Hierro

Director · Silicium Laboratories Europe

Industrial lead responsible for transmitting Dr. Le Ribault's original formula since 2010. More than 23 years working with the Silicium G7® active ingredient.

Scientific review

Dr. Maria del Mar Sabaté Martínez

PhD Biochemistry · Universitat Rovira i Virgili

Academic review of the active ingredient's kinetics, usage guidelines, and clinical references. Verification of the claims with published scientific literature.

23 years of continuous use without relevant incidents · 60+ studies catalogued · EFSA Novel Food

Organic silicon that 23 years support.

No relevant adverse effects reported, EFSA approval as Novel Food, and 60+ catalogued studies on the active ingredient. Dr. Le Ribault's original formula, in liquid and capsule format.

Scientific sources

The ten references.

See the 10 scientific references
  1. Carlisle EM (1981). Silicon: a requirement in bone formation independent of vitamin D1. Calcified Tissue Int 33:27-34. DOI
  2. Reffitt DM et al. (1999). OSA/MMST and collagen synthesis. Pioneering research on orthosilicic acid and MMST. DOI
  3. Jugdaohsingh R, Tucker KL, Qiao N, Cupples LA, Kiel DP, Powell JJ (2004). Dietary silicon intake is positively associated with bone mineral density in men and pre-menopausal women of the Framingham Offspring cohort. J Bone Mineral Res 19:297-307 · n=2.847 · up to +10 % BMD between the highest and lowest quintiles of dietary Si. DOI
  4. BIOFORTIS · Mérieux NutriSciences (2011). Efficacy of Silicium G7® · 30 subjects · 6 weeks · 87 % reported better mobility · 77 % reported less pain.
  5. Del Bas JM et al. (2014). In vitro evaluation of Silicium G5 on bone health parameters in MG-63 cells · +12 % collagen · +40 % mineralization. CTNS-Eurecat internal report (unpublished).
  6. EFSA (2016). Scientific Opinion · safety of organic silicon as Novel Food (EU Regulation 2017/2470) · NOAEL · toxicological safety/d. DOI
  7. Polonini H. et al. (2018). Topical MMST permeates ≈60 % into epidermis and viable dermis (ex vivo Franz cells) · Int J Cosmet Sci. Cosmetics.
  8. Ferreira AO et al. (2018). 25 % wrinkle reduction (Visia) and subjective improvement in hair hydration and skin radiance · n=51 · 5 months.
  9. Jones K, Linhart C, Hawkins C, Exley C. (2017). Urinary excretion of aluminium and silicon in secondary progressive multiple sclerosis. EBioMedicine. DOI
  10. Crescenti M et al. (2025). Double-blind placebo-controlled parallel RCT · n=45 · 4 groups · 7 days · Universidad Católica de Murcia (UCAM) · Significant increase in urinary Al excretion in women with M-OSA (ORGONO_Malto, median +157 % [IQR 51,4–193] · p=0,006) · manuscript under peer review.
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