SD Alcohol 39-B
molecular structure · PubChem
AKA: Alcohol Denat, Denatured Alcohol
Synthetic
Solvent
Astringent
Clean
Alcohol Denat.
CAS #
8048-19-9
Form
Liquid
State
Liquid
Functions
Astringent
Tightens and contracts skin tissue, temporarily shrinking pores and reducing oiliness. That "clean, tight" feeling after toner.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Viscosity Controlling
Controls excess oil
Minimizes pores
Traditional Use
A specially denatured alcohol variant with specific denaturant additives, established under 20th-century U.S. tax code. Used in cosmetics as a solvent and preservative while meeting regulatory requirements for non-beverage alcohol.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR