The ingredient, explained

Biotin

Biotin has published research relevant to the stated experimental context.

AntiseborrhoeicHair conditioningSkin conditioning

Explore connections

Ingredient guide

What it is and what it does

1H-Thieno[3‚4-d]imidazole-4-pentanoic acid, hexahydro-2-oxo-, [3aS--3a.alpha.,4.beta.,6a.alpha.-]-

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Antiseborrhoeic: A technical role associated with controlling sebum production.
Hair conditioning: Improves cosmetic hair properties such as softness, shine or combability.
Skin conditioning: A broad cosmetic role for maintaining skin condition. It does not identify a particular clinical benefit.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Human oral research

The primary report states isolated biotin did not increase hair growth velocity in the studied men.

What this does not tell us

This oral hair-growth study does not establish topical cosmetic benefit or apply to treatment of confirmed deficiency. Detailed sample and duration are not extracted from the accessible primary text.

Sources for this summary. PubMed 38688776 ↗

Research review checked Oct 1, 2026

Selective exact-identity review of 6 supplied local candidates and the targeted primary-source search recorded below. Bounded review, not a systematic search.

Ingredient research is not proof that a product containing this ingredient works.