The ingredient, explained

Piroctone Olamine

Piroctone Olamine has published research relevant to the stated experimental context.

Preservative

Explore connections

Ingredient guide

What it is and what it does

1-Hydroxy-4-methyl-6--2‚4,4-trimethylpentyl-pyridin-2-1H--one, compound with 2-aminoethanol -1:1-

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

Preservative: Helps inhibit microbial growth in the cosmetic product.

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 research on a combination

The combined regimen reduced hair shedding and water loss and increased hair count relative to placebo shampoo over 24 weeks.

What this does not tell us

Six functional ingredients and two treatment products prevent attribution to piroctone olamine alone. Participants had normal scalps and self-perceived thinning; this is not a trial of all hair-loss disorders.

Sources for this summary. PubMed 34424558 ↗

Research review checked Oct 1, 2026

Selective exact-identity review of 5 supplied local candidates and the targeted primary-source search recorded below. Bounded review, not a systematic search.