C15 19 Alkane
AKA “C15-19 Alkane, Hydrocarbon
Synthetic
Ingredient Facts
C15 19 alkane
AKA: C15-19 Alkane, Hydrocarbon
Synthetic · Emollient · EWG: 3
Synthetic
Emollient
Fragrance
Skin Conditioner
Synthetic
Clean
Safety Ratings: EWG: 3/10 (Moderate)
CAS #
64742-46-7
Form
Oil
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Fragrance
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Traditional Use
A synthetic hydrocarbon mixture developed for cosmetics as a lightweight emollient and texture enhancer, designed to provide a smooth, non-greasy feel in skincare and cosmetic formulations.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
3
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
ewg-3
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
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Manuka honey activates the aryl hydrocarbon receptor: Imp...
Abdullah A Alangari, Matin D Ashoori, Wisam Alwan, Hannah R Dawe, Brigitta Stockinger, Jonathan N Barker + 2 more
Pharmacological research, 2023
Manuka honey activates the aryl hydrocarbon receptor: Imp...
Abdullah A Alangari, Matin D Ashoori, Wisam Alwan, Hannah R Dawe, Brigitta Stockinger, Jonathan N Barker + 2 more
Pharmacological research, 2023
C15 19 Alkane
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Aryl Hydrocarbon Receptor in Atopic Dermatitis and Psoriasis.
Furue M, Hashimoto-Hachiya A, Tsuji G
International journal of molecular sciences, 2019
Comparative in vivo toxicity of topical JP-8 jet fuel and its individual hydrocarbon components: identification of tridecane and tetradecane as key co
Muhammad F, Monteiro-Riviere NA, Riviere JE
Toxicologic pathology, 2005
DNA adduct formation in human and mouse skin by mixtures of polycyclic aromatic hydrocarbons.
Phillips DH, Schoket B, Hewer A, Grover PL
IARC scientific publications, 1990
Verified Feb 2026
Data: CosIng · EWG · CIR