Does topical biotin actually reach the follicle?

Yes — biotin is a small, water-soluble molecule that passes through the sebaceous canal to the dermal papilla when carried in an oil or serum base.

Can I take biotin supplements too?

You can, but topical delivery is more targeted. If supplementing, stay under 100 mcg / day — mega-doses can skew lab test results.

Will biotin thicken my existing hair?

Individual strands can become measurably thicker within 8–12 weeks as new keratin is built with adequate cofactor supply.

02 / 19

🇧🇪Vitamin·Strand fortification·№ 002

Biotin

Vitamin B7 · D-biotin

The keratin cofactor every fragile strand quietly runs out of.

Region

Belgium · pharmaceutical-grade fermentation

Form

Water-soluble crystalline powder

Shelf

36 months in sealed formulas

Class

Vitamin

Key finding

500 Da

Molecular weight — small enough to penetrate the follicle

Effective dose · Topical: 0.05%–0.2%. Oral supplementation: 30–100 mcg / day is adequate for most adults; mega-doses can skew thyroid and troponin blood tests.

The brief.

Origin

Bio-fermented in a Belgian pharmaceutical facility using non-GMO yeast. Certified USP-grade and Kosher.

Extraction

Yeast fermentation produces the D-biotin isomer — the only stereoisomer the body can actually use. The crystallised active is then purified to >98% for cosmetic and pharmaceutical use.

Sustainability

Fermentation-derived, so no animal inputs and no land-use footprint. The Belgian facility runs on 100% renewable electricity.

How it works.

Biotin is a coenzyme in the carboxylase reactions that build keratin. When it's deficient, the body deprioritises hair and nail growth to protect vital organs. Topically delivered biotin bypasses gut absorption, targeting the follicle directly with the cofactor it needs to spin longer, stronger strands.

Delivers

01Cofactor for keratin synthesis — the protein 95% of your hair is built from
02Strengthens the cuticle, reducing breakage during brushing and styling
03Improves shine by tightening the outer scale layer of each strand
04Supports nail thickness and skin barrier as a bonus

Molecular signature.

The bio-active constituents that make Biotin work — with standardised percentages where measured by HPLC.

01
Bicyclic ureido ring
The carbon backbone that binds carboxylase enzymes during keratin synthesis.
02
Tetrahydrothiophene ring
Sulfur-containing ring that stabilises the molecule and helps it slip through the sebum layer.
03
Valeric acid tail
The 'anchor' that lets biotin dock into the follicle keratinocyte.

Signal profile.

Six-axis assay

A living profile — the vectors that make Biotin distinct.

Evidence74
2 peer-reviewed sources
Potency100
Standardised at 500 Da
Safety92
Broad tolerance
Heritage88
Documented across 4 traditions
Sensory58
Vitamin profile
Sourcing78
Traceable provenance

Heritage.

The record

Discovered in 1927 by Margarete Boas as 'protective factor X' in egg yolks, biotin was isolated in 1936, structurally decoded by Nobel laureate Vincent du Vigneaud in 1942, and added to the essential-vitamin registry the same decade. It has been trichology's default hair vitamin ever since.

Traditional use

Long before its isolation, egg-yolk hair masks — biotin's richest natural source — were a staple of North African and Indian hair care.

Naturally found in

Egg yolks (richest natural source)
Liver, salmon, sunflower seeds
Sweet potato and almonds
Nutritional yeast

Field → phial.

Every gram of Biotin passes five gates before it enters a Ghori formula. No shortcuts, no re-labels — the paper trail runs from soil to seal.

𖤣01
Stage 01
Harvest
Bio-fermented in a Belgian pharmaceutical facility using non-GMO yeast. Certified USP-grade and Kosher.
❋02
Stage 02
Extract
Yeast fermentation produces the D-biotin isomer — the only stereoisomer the body can actually use. The crystallised active is then purified to >98% for cosmetic and pharmaceutical use.
◇03
Stage 03
Assay
HPLC-verified. 500 Da standardised for molecular weight — small enough to penetrate the follicle.
◉04
Stage 04
Formulate
Topical: 0.05%–0.2%. Oral supplementation: 30–100 mcg / day is adequate for most adults; mega-doses can skew thyroid and troponin blood tests.
⌘05
Stage 05
Deliver
Stable 36 months in sealed formulas. Sealed under nitrogen where required.

Best for. Pairs with.

Best for

◆Brittle strands that snap mid-length
◆Post-diet, post-partum, or high-stress shed
◆Anyone with soft, peeling nails alongside hair thinning

Pairs well with

Rosemary Leaf Oil→Peppermint Oil→Hydrolyzed Keratin→

In 2 formulas.

People often ask.

Does topical biotin actually reach the follicle?
Yes — biotin is a small, water-soluble molecule that passes through the sebaceous canal to the dermal papilla when carried in an oil or serum base.
Can I take biotin supplements too?
You can, but topical delivery is more targeted. If supplementing, stay under 100 mcg / day — mega-doses can skew lab test results.
Will biotin thicken my existing hair?
Individual strands can become measurably thicker within 8–12 weeks as new keratin is built with adequate cofactor supply.

The paper trail.

[01]Patel DP, et al. Skin Appendage Disord. 2017 — A review of the use of biotin for hair loss.
[02]Trüeb RM. Int J Trichology. 2016 — Serum biotin levels in women complaining of hair loss.

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