1,10-Decanediol
AKA “Decamethylene glycol, Decamethylenediol, 10-Dihydroxydecane, 10-Decamethylenediol, alpha, omega-Decanediol, NSC-17165, SPEZIOL C 10/2
Synthetic
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Ingredient Facts
1,10-Decanediol
AKA: Decamethylene glycol, Decamethylenediol, 10-Dihydroxydecane, 10-Decamethylenediol, Alpha, Omega-Decanediol, NSC-17165, SPEZIOL C 10/2
Synthetic · Solvent | Humectant | Skin Conditioning · EWG: 1
Plant-Derived
Humectant
Solvent
Skin Conditioner
Synthetic
Clean
A lightweight solvent that helps blend and dissolve other ingredients in the formula, ensuring smooth application and even coverage on skin.
Formula
C10H22O2
Mol. Weight
174.28
CAS #
112-47-0
Form
Liquid
Plant-Derived
Synthetic. Derived from petrochemical sources or long-chain fatty alcohols within the aliphatic diol chemical family. Synthesized through catalytic hydrogenation and oxidation of decane or decene hydrocarbons.
Function
Solvent | Humectant | Skin Conditioning
Benefits
Solvent
Strengthens Barrier
Antioxidant
Moisturizing
Dissolves other ingredients
Traditional Use
A synthetic humectant and preservative booster developed in the 20th century for cosmetic formulations. Created to provide enhanced hydration and preservation benefits beyond what traditional plant-based moisturizers could offer.
Skin Types
all-skin-types, gentle
Best For
Target
Dehydration
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score1
CIR Safety Findings
ewg-1, medical-approval, pregnancy-nursing-safe, all-shades-safe, Moderate Irritant
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Uptake and bioconversion of alpha-tocopheryl acetate to a...
E P Norkus, G F Bryce, H N Bhagavan
Photochemistry and photobiology, 1993
The Efficacy of Topical Cosmetic Containing Alpha-Arbutin...
Pimpa Tantanasrigul, Apinya Sripha, Bunchai Chongmelaxme
Journal of cosmetic dermatology, 2025
Uptake and bioconversion of alpha-tocopheryl acetate to a...
E P Norkus, G F Bryce, H N Bhagavan
Photochemistry and photobiology, 1993
The Efficacy of Topical Cosmetic Containing Alpha-Arbutin...
Pimpa Tantanasrigul, Apinya Sripha, Bunchai Chongmelaxme
Journal of cosmetic dermatology, 2025
Uptake and bioconversion of alpha-tocopheryl acetate to a...
E P Norkus, G F Bryce, H N Bhagavan
Photochemistry and photobiology, 1993
The Efficacy of Topical Cosmetic Containing Alpha-Arbutin...
Pimpa Tantanasrigul, Apinya Sripha, Bunchai Chongmelaxme
Journal of cosmetic dermatology, 2025
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR