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C18-30 Glycol
AKA “Glycol, Fatty Acid Glycol”
Synthetic
Ingredient Facts
C18-30 glycol
AKA: Fatty Acid Glycol
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Emulsifier
Skin Conditioner
Synthetic
Clean
A lightweight moisture lock that keeps your skin soft and helps stabilize our formula so it applies smoothly and stays consistent every time.
CAS #
223239-97-2
Form
Liquid
See origin →
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
A synthetic humectant developed for cosmetic chemistry in the 20th century. Created to improve hydration and texture in modern skincare products.
Skin Types
●all-skin-types
Best For
Dehydration
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Potential Sensitizer
Regulatory Status
USAunder review
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Propylene glycol dermatitis.
J M Catanzaro, J G Smith
Journal of the American Academy of Dermatology, 1991
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Propylene glycol dermatitis.
J M Catanzaro, J G Smith
Journal of the American Academy of Dermatology, 1991
→
Propylene glycol dermatitis.
J M Catanzaro, J G Smith
Journal of the American Academy of Dermatology, 1991
→
Amended Safety Assessment of Formaldehyde and Methylene Glycol as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Amended Report on the Safety Assessment of Ammonium Thioglycolate, Butyl Thioglycolate, Calcium Thioglycolate, Ethanolamine Thioglycolate, Ethyl Thioglycolate, Glyceryl Thioglycolate, Isooctyl T
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report of the Cosmetic Ingredient Review Expert Panel Amended Safety Assessment of Triethylene Glycol and Polyethylene glycols (PEGs)-4, -6, -7, -8, -9, -10, -12, -14, -16, -18, -20, -32, -33, -
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report of the Cosmetic Ingredient Review Expert Panel Safety Assessment of Polymethyl Methacrylate (PMMA), Methyl Methacrylate Crosspolymer and Methyl Methacrylate/Glycol Dimethacrylate Crosspol
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Ammonium and Glyceryl Thioglycolates and Thioglycolic Acid
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Butylene Glycol, Hexylene Glycol, Ethoxydiglycol, and Dipropylene Glycol
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Glycol Stearate, Glycol Stearate SE, and Glycol Distearate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Glycolic Acid, Ammonium, Calcium, Potassium, and Sodium Glycolates, Methyl, Ethyl, Propyl, and Butyl Glycolates, and Lactic Acid, Ammonium, Calcium, Potassium,
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report on the Safety Assessment of PEG (Polyethylene Glycol)-2, -4, -6, -8, -12, -20, -32, -75 and -150 Dilaurate; PEG-2, -4, -6, -8, -9, -10, -12, -14, -20, -32, -75, -150, and -200 Laurate; an
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report on the Safety Assessment of PEG-25 Propylene Glycol Stearate, PEG-75 Propylene Glycol, PEG-120 Propylene Glycol Stearate, PEG-10 Propylene Glycol, PEG-8 Propylene Glycol Cocoate, and PEG-
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report on the Safety Assessment of Polyethylene Glycols (PEGs) -6, -8, -32, -75, -150, -14M, -20M
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report on the Safety Assessment of Propylene Glycol (PG) Dicaprylate, PG Dicaprylate/Dicaprate, PG Dicocoate, PG Dipelargonate, PG Isostearate, PG Laurate, PG Myristate, PG Oleate, PG Oleate SE,
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report on the Safety Assessment of Propylene Glycol and Polypropylene Glycols
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Propylene Glycol Stearate and Propylene Glycol Stearate Self-Emulsifying
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report on the Safety Assessment of Triethylene Glycol and PEG-4
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report: Amended Safety Assessment of PEG Propylene Glycol Derivatives as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report: Safety Assessment of Glycolactones as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report: Safety Assessment of Monoalkylglycol Dialkyl Acid Esters as Used In Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report: Safety Assessment of Propylene Glycol Esters as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Glycol Stearate and Glycol Stearate SE
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Safety Assessment of 1,2-Glycols as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Safety Assessment of Propylene Glycol, Tripropylene Glycol and PPGs as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Special Report on the Reproductive and Developmental Toxicity of Ethylene Glycol and its Ethers
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
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Ammonium Glycolate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Ammonium Thioglycolate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
RALGA (Diacneal), a retinaldehyde and glycolic acid assoc...
A D Katsambas
Dermatology (Basel, Switzerland), 2005
→
The use of glycolic acid as a peeling agent.
H Murad, A T Shamban, P S Premo
Dermatologic clinics, 1995
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Chitosan-Glycolic Acid Gel Modification of Chloride Ion T...
Olga Zavyalova, Dominika Dąbrowska-Wisłocka, Konrad Misiura, Iga Hołyńska-Iwan
Molecules (Basel, Switzerland), 2023
→
Chitosan-Glycolic Acid Gel Modification of Chloride Ion T...
Olga Zavyalova, Dominika Dąbrowska-Wisłocka, Konrad Misiura, Iga Hołyńska-Iwan
Molecules (Basel, Switzerland), 2023
→
Chitosan-Glycolic Acid Gel Modification of Chloride Ion T...
Olga Zavyalova, Dominika Dąbrowska-Wisłocka, Konrad Misiura, Iga Hołyńska-Iwan
Molecules (Basel, Switzerland), 2023
→
Verified Feb 2026
Data: CosIng · EWG · CIR