What does Pyroligneous acids do?

Used in cosmetics as a humectant and a skin-conditioning agent. Quercus Acutissima Wood Vinegar Extract is the extract of the distilled, condensed smoke obtained from dried, carbonized Quercus acutissima.

Is Pyroligneous acids safe?

We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

beauty

Pyroligneous acids

CAS 93821-71-7

Also registered as 1 other CAS number

8030-97-5

Concern score

Not assessed — no hazard data yet.

Pyroligneous acids in plain language

What it is: On cosmetic ingredient lists it appears as “Quercus acutissima wood vinegar extract”.
Also known as Quercus acutissima wood vinegar extract · BioBIRE · Biopirol · Biopirol 7M · Mokusakukiko · Neosules
Show all 9 names
Oils, wood (pyroligneous acid) · Pyroligneous acid · Wood vinegar
What it does: Used in cosmetics as a humectant and a skin-conditioning agent. Quercus Acutissima Wood Vinegar Extract is the extract of the distilled, condensed smoke obtained from dried, carbonized Quercus acutissima.
Humectant
Skin conditioning
Fragrance
Flavouring
Conditioner
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Pyroligneous acids appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Beauty

EUCosIngActiveQuercus Acutissima Wood Vinegar Extract is the extract of the distilled, condensed smoke obtained from dried, carbonized Quercus acutissima.
- Quercus Acutissima Wood Vinegar Extract is the extract of the distilled, condensed smoke obtained from dried, carbonized Quercus acutissima.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 1 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Humectant, Softener and conditioner, Fragrance.
- EPA CPDat observed this chemical in 1 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Humectant, Softener and conditioner, Fragrance.Source →

Expert safety opinions

No expert opinion on file for Pyroligneous acids. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Pyroligneous acids yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

3 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
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EPA Chemical and Products Database
exposure · updated March 2016
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EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed Pyroligneous acids in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Personal care

Typical roles

HumectantSkin conditioningFragranceFlavouringConditioner

See products using Pyroligneous acids →