is pentylene glycol the same as propylene glycol

[60] In one case, intravenous administration of propylene glycol-suspended nitroglycerin to an elderly man may have induced coma and acidosis. It is also quite a low energy process very unlike petrochemical derived propylene glycol. One common ingredient is propylene glycol, primarily found in salad dressing. 2. They are aerosolized to resemble smoke and serve as carriers for substances such as nicotine and flavorants. panel has deemed all the 1,2-glycols that are used in skincare formulations, safe for use. Although propylene glycol has low toxicity, it exerts high levels of biochemical oxygen demand (BOD) during degradation in surface waters. Propylene glycol is well tolerated by the skin and shouldn't cause redness or irritation. In the production of dipropylene glycol, the final product contains 20% propylene glycol and 1.5% dipropylene glycol. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Required fields are marked *. However, this article focuses on thedifference between dipropylene glycol and propylene glycol. When considering the uses of this compound, it is useful in the production of pesticides, hydraulic brake fluids, polyester resins, cutting oils, etc. A dental product Emdogain is 6 to 8% propylene Glycol. Source: plantillas-palinny.blogspot.com. 147s-168s. The chemical formula of dipropylene glycol is C6H14O3 while the chemical formula of propylene glycol is C3H8O2. Propylene glycol is commonly found in many packaged foods, such as drink mixes, dressings, dried soups, cake mix, soft drinks, popcorn, food coloring, fast foods, bread and dairy products ( 6 ). Johnson, W et al. Propylene glycol.". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". She was patch tested and she had the same reaction, and they still say its her heart. Each of these compounds has a hydroxyl group (-OH) on the first and second carbons. It does not store any personal data. Generally, these liquids are non-irritating but have very low volatility. [11][12] Vaporizers used for delivery of pharmaceuticals or personal-care products often include propylene glycol among the ingredients. At the same time, it also boosts the effectiveness of other preservatives, such as the nowadays super commonly used phenoxyethanol. People against the use of propylene glycol in food argue that its levels in food are beyond what the World Health Organization recommends. The cookie is used to store the user consent for the cookies in the category "Analytics". Curl Chemist's conclusion: Don't fear propylene glycol. [57] Ruddick (1972) also summarized intramuscular LD50 data for rat as 13-20 mL/kg BW, and 6 mL/kg BW for the rabbit. Being a large organic alcohol, propylene glycol . Propylene glycol is commonly used in cosmetic products due to its antiseptic, solvent, moisture-regulating, and preservative properties. We can prepare this compound in two ways: industrial production and laboratory production. [48] Inhalation of propylene glycol vapors appears to present no significant hazard in ordinary applications. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. Propylene and butylene glycol are also commonly used in products as solvents. the not so good: It can cause minor irritation to the eyes and skin in some people. What are your experiences with Propylene Glycol and Polyethylene Glycol? Wow, Thank You everyone for sharing your personal stories snd information. Propylene glycol and benzine glycol differ in chemical formula and properties. PUGVIEW FETCH ERROR: 403 Forbidden National Center for Biotechnology Information 8600 Rockville Pike, Bethesda, MD, 20894 USA Contact Policies FOIA HHS Vulnerability Disclosure National Library of Medicine National Institutes of Health Safety Assessment of 1, 2-Glycols as Used in Cosmetics, International Journal of Toxicology, vol. What can you use instead of propylene glycol? After about 3 months of doing so I became very sick. WebMD does not provide medical advice, diagnosis or treatment. Finally, just like PEG, PG increases penetration. It may exist in air in the vapor form, although propylene glycol must be heated or briskly shaken to produce a vapor. I am so much betterI had much trouble walking without horrible muscle issuescramping and pain for thirty years since a statin I took for three years with PEG in it. Your email address will not be published. The number one difference between the two glycols is that ethylene glycol is toxic and propylene glycol is not, allowing propylene glycol to be purchased as food grade in addition to the technical or industrial grade. Propylene glycol is a substance commonly used as a food additive or ingredient in many cosmetic and hygiene products. Derived mainly from a petrochemical, Propylene Oxide from natural gas. All rights reserved. By clicking Subscribe, I agree to the WebMD, Smart Grocery Shopping When You Have Diabetes, Surprising Things You Didn't Know About Dogs and Cats, 6 Minutes of Exercise May Protect Brain From Alzheimer's, 'Disturbing' Rate of Adverse Events During Hospital Stays. [51], According to a 2010 study, the concentrations of PGEs (counted as the sum of propylene glycol and glycol ethers) in indoor air, particularly bedroom air, has been linked to increased risk of developing numerous respiratory and immune disorders in children, including asthma, hay fever, eczema, and allergies, with increased risk ranging from 50% to 180%. The key difference between dipropylene glycol and propylene glycol is that the dipropylene glycol is a mixture of three isomers, whereas the propylene glycol is an organic compound having two alcohol groups. 1,2-Propandiol Synthesis V1 By J Own work (CC BY-SA 4.0) via Commons Wikimedia. Since all glycols are non-volatile this problem can be excluded. It finds long-standing uses in personal care, flavors and fragrances, feed applications, and many other food and pharmaceutical formulations. This substance contains two alcohol functional groups, so we can name it a diol. However, polymerization of ethylene glycol to polyethylene glycol turns the -OH groups into ester linkages: -O-CH2-CH2-O-CH2-CH2-O-CH2-. Caprylyl Glycol. I make everything from scratch which is very time consuming but well worth his health and vitality. However, this reaction is rare. Polyethylene glycol is a polymer made usually by reacting ethylene oxide with ethylene glycol or some oligo (ethylene glycol). Necessary cookies are absolutely essential for the website to function properly. Acidosis means your body cant remove the acid as fast as it should, leading to toxicity. Acetyl glucosamine is a skin-replenishing ingredient that helps to reduc What Is Acetyl Hexapeptide 8? The ingredients in Dow Food grade or food safe propylene glycol are FDA certified for use as food additives. I believe my mom is allergic, none of the doctors believe her even though she had a patch test done and had a reaction. Large quantities of dissolved oxygen (DO) in the water column are consumed when microbial populations decompose propylene glycol. [7], Final products contain 20% propylene glycol, 1.5% of dipropylene glycol, and small amounts of other polypropylene glycols. For anyone worried about this, it may be worth asking the company which form of propanediol they use in their products. It can turn into crystals that collect in the kidneys, and it's an acid that affects the nervous system, lungs and heart. The main difference between propylene glycol and glycerin is that propylene glycol has two OH groups whereas glycerin has three OH groups. It is the main ingredient in antifreeze but is also used extensively in the manufacture of medicines and cosmetics. There are 16 other 1,2-glycols, only four are used in skincare. The positive reaction rates were 0%, 0.26%, and 1.86% for 5%, 10%, and 20% propylene glycol respectively, increasing with each concentration increase. PubChem Compound Database, U.S. National Library of Medicine, Available here. Additionally, certain formulations of artificial tears use propylene glycol as an ingredient. One report even shows that exposure to PG can cause skin, liver, and kidney damage. NO! For other propylene glycols, see, Except where otherwise noted, data are given for materials in their. Also, my skin is extremely irritated, and since i have very sensitive skin anyway, I couldnt trace the cause. Caprylyl Glycol CIR Expert Panel Meeting June 27-28, 2011.Pillai, R, Schmaus, G, Pfeiffer, A, Lange, S & Trunet, A, 2013. Ethylene glycol affects the body two ways. Propylene glycol is a viscous, colorless liquid, having the chemical formula CH3CH(OH)CH2OH. After about a month I did start to feel better. Polyethylene glycol and propylene glycol are names that look alike and sound alike; therefore the products can be confused. Proudly powered by WordPress | Theme: Newsup by Themeansar. Dihydroxypropane. Pillai, R, Schmaus, G, Pfeiffer, A, Lange, S & Trunet, A, 2013. 2 Hydroxypropyl. A dermatologist ordered a series of patch tests which identified my allergies. (Hence, the significant effect on moving) Knowing what I am allergic to allows me to avoid foods containing my poison for the most part. 50% propylene glycol has a freezing pointof -31F, where 50% ethylene glycol freezes at -36F. Propylene glycol is a penetration-enhancing humectant. Propylene glycol and glycerin often appear the same since they are colourless, odourless, sweet and syrupy. Chemical Listing Details. the good: Butylene glycol helps to stabilize and thicken products. While propylene glycol and ethylene glycol may have some similar properties, the biggest difference between the two is the toxicity level. Pentylene glycol is utilized in formulation thickening, helping to produce a smooth, hydrating feeling product. Difference Between Aldehyde and Formaldehyde, Difference Between Ether and Petroleum Ether, Difference Between Transamination and Deamination. Please let me now what to do. Margin of safety of pentylene glycol using measurements of cutaneous absorption and volatility, Regulatory Toxicology and Pharmacology, vol. Keep an eye on: It can also be referred to by the names 1,2- dihydroxypentane, 1,2-pentanediol, and pentane-1,2-diol. However, propylene glycol is a synthetic substitute for propanediol. Before it was uncontrollable itching on his skin. In contrast, propylene glycol is a "generally recognized as safe" additive for foods and medications. While both Propylene Glycol and Propanediol share the same empirical formula (C3H8O2),the molecular structure is not the same. 2. Pentylene glycol is part of the 1,2-glycol family of ingredients. Propylene glycol has been found in some of the most hazardous waste sites in the country, but in normal amounts, its not considered unsafe. We also use third-party cookies that help us analyze and understand how you use this website. We can produce this compound industrially from propylene oxide by the following reaction; Figure 02: Production of Propylene Glycol from Propylene Oxide. Propylene Glycol is a common cosmetic ingredient with many benefits including humectancy, solvency, moisturization, and emulsification, but did you know theres an alternative?Essential is happy to announce the addition of Propanediol; a corn sugar derived alternative to Propylene Glycol, to ourwide selection of cosmetic ingredients. [18][19] The 50F/45C commercial product is, however, water rich; a typical formulation is 40:60. Propylene glycol is an organic compound having two alcohol functional groups in the same molecule. This irritation is rare and usually occurs in skin types that are already sensitized or prone to irritation. Thanks! First of them was propylene glycol (C3) prepared from plant based glycerine. Use of USP (US Pharmacopoeia) propylene glycol can reduce the risk of Abbreviated New Drug Application (ANDA) rejection.[9]. Difference Between Linear and Branched Polymers, Difference Between Dimerization and Polymerization, Difference Between Phenolic Resin and Epoxy Resin. Other names for propylene glycol are 1,2-dihydroxypropane, 1,2-propanediol, methyl glycol, and trimethyl glycol. Its a long story but I am freer of it than ever but still trying to eliminate all of it. Basis for Listing: AB-NTP. Propylene Glycol Free Balsam of Peru Free Oil Free Irritant Free Dye Free SLS Free Products That Don't Contain Pentylene Glycol Favorite Similar La Roche-Posay La Roche-Posay Toleriane Double Repair Face Moisturizer, SPF 30, 2.5 oz Favorite Similar CoTZ CoTZ Baby Non-Tinted Mineral Sunscreen, SPF40, 3.5 oz/100 g Favorite Similar In the cosmetics industry, where propylene glycol is very commonly used as a carrier or base for various types of makeup. ACS Publications: Process Designs for Converting Propylene Glycol to Acrylic Acid Via Lactic Acid and Allyl Alcohol., Agency for Toxic Substances and Disease Registry: PROPYLENE GLYCOL., American Journal of Clinical Pathology: Rapid and Specific Quantification of Ethylene Glycol Levels: Adaptation of a Commercial Enzymatic Assay to Automated Chemistry Analyzers., Case Reports in Endocrinology: Acute Renal Failure Secondary to Inadvertent Propylene Glycol Overdose with Single-Day High-Dose Vitamin D (Stosstherapy)., EFSA Journal: Reevaluation of propane1,2diol (E 1520) as a food additive., Encyclopedia of Toxicology: Vitamin A., Flavor Science: Reactions of Propylene Glycol with the Constituents of Food Flavorings., International Journal of Toxicology: Safety Assessment of Propylene Glycol, Tripropylene Glycol, and PPGs as Used in Cosmetics., Journal of the American Academy of Dermatology: Propylene glycol dermatitis., Journal of the American College of Toxicology: Final Report on the Safety Assessment of Propylene Glycol Stearate and Propylene Glycol Stearate Self-Emulsifying., Journal of Toxicology: Clinical Toxicology: Unusual D-Lactic Acid Acidosis from Propylene Glycol Metabolism in Overdose., Natural news: Propylene Glycol: The Good, The Bad and the Alternatives., Small Animal Toxicology: Propylene Glycol., The Agency for Toxic Substances and Disease Registry: "Toxicological Profile for Propylene Glycol. Pentylene Glycol Description It is a humectant, meaning it binds well to water, making it a good hydrating agent and solvent to aid penetration of other ingredients. The Skin Deep ingredient hazard score, from 1 to 10, reflects known and suspected hazards linked to the ingredients. the not so good: It can irritate the eyes at high concentrations and when there is significant contact with the eyes. Who is it for? Our Pentylene Glycol is sourced from Sugarcane and Corn by-product, so in effect it is extracted from residual waste. In an NTP continuous breeding study, no effects on fertility were observed in male or female mice that received propylene glycol in drinking water at doses up to 10100mg/kg bw/day. Your email address will not be published. [34] Propylene glycol is metabolized in the human body into pyruvic acid (a normal part of the glucose-metabolism process, readily converted to energy), acetic acid (handled by ethanol-metabolism), lactic acid (a normal acid generally abundant during digestion),[35] and propionaldehyde (a potentially hazardous substance). Here, this reaction gives a mixture of compounds which has 20% propylene glycol and 1.5% dipropylene glycol. It's used in many products because it helps them maintain their consistency, moisture, and texture.. Below infographic summarizes the difference between dipropylene glycol and propylene glycol. Propylene glycol is often used to maintain the moisture in prepared foods and works to maintain their flavor quality for longer periods of time. Some additives enhance flavor, while others help in food preservation. You can read more about this brand at the bottom of the article. When PEG joins a party it brings all its friends with it, really ramping up the impact that other undesirable compounds have on your skin. This characteristic makes pentylene glycol a great ingredient to emulsify and thicken products. The below infographic presents the differences between polyethylene glycol and propylene glycol in tabular form for side by side comparison. This is because 1,3-butylene glycol and Mono Propylene Glycol do not have toxic effects. Apart from being used as a food additive, propylene glycol is also an active ingredient in engine coolants, airplane deicers, enamels, paints, varnishes, and polyurethane cushions.. FDA. Propylene glycol ( IUPAC name: propane-1,2-diol) is a viscous, colorless liquid, which is nearly odorless but possesses a faintly sweet taste. Some people still recommend reducing your dietary sources of it, citing the following potential health risks:, Worsenedkidney and liver disease symptoms: If you have normal liver and kidney function, your body can easily remove propylene glycol. The CIR Expert Panel determined that the available information support the safety of tripropylene glycol as well as all the PPGs. Your email address will not be published. It is calculated using a weight-of-evidence . The EWG VERIFIED mark means a product meets EWG's strictest criteria for transparency and health. The potential hazards of chronic inhalation of propylene glycol or the latter substance as a whole are as-yet unknown. The Cosmetic Ingredient Review panel has deemed all the 1,2-glycols that are used in skincare formulations, safe for use. It is, however, generally considered safe. Because it comes in several grades, PG has been used for a variety of uses. This contact allergy may cause your skin to react when it is exposed to this substance although it may take several days for the symptoms to appear. EC Number : 226-285-3. A 2018 human volunteer study found that 10 male and female subjects undergoing 4 hours exposures to concentrations of up to 442mg/m3 and 30 minutes exposures to concentrations of up to 871mg/m3 in combination with moderate exercise did not show pulmonary function deficits, or signs of ocular irritation, with only slight symptoms of respiratory irritation reported. I recently became very ill. * Breathing Hexylene Glycol can irritate the nose and throat causing coughing and wheezing. Madhu is a graduate in Biological Sciences with BSc (Honours) Degree and currently persuing a Masters Degree in Industrial and Environmental Chemistry. Pentylene Glycol, 1,2-Hexanediol and Caprylyl Glycol are 1,2-glycol compounds that vary only by the number of carbons. Now, he gets sores, blisters in his his mouth. The LD50 is higher for most laboratory animals (20mL/kg). It is a hydrophilic ingredient, which means that it binds well to water. It is a solvent for food colors and flavors, and in the paint and plastics industries. Polyethylene Glycol vs Propylene Glycolin Tabular Form Polyethylene glycol is biologically inert and considered safe by FDA. Most reported cases of propylene glycol toxicity have resulted from propylene glycol used as a diluent for intravenous administration of benzodiazepines (Kraut and Kurtz 2008). Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Drinking ethylene glycol causes the same feelings as drinking alcohol, but in a few hours the symptoms will turn into nausea, vomiting, convulsions and possibly coma. My mom also had a reaction to the Moderna vaccine, and she has a reaction to most things that contain PEG, but its not a normal allergic reaction her heart rate just goes super high (200+ bpm) and none of the doctors believe its an allergy. What is Polyethylene Glycol What Are The Benefits of Pentylene Glycol? There are 16 other 1,2-glycols, only four are used in skincare. It secures the water and takes it to the outer layer of your skin. Theme: Newsup by Themeansar sourced from Sugarcane and Corn by-product, so in it. Eye on: it can cause minor irritation to the outer layer your... There is significant contact with the eyes and skin in some people stories snd information not have effects! Personal care, flavors and fragrances, feed applications, and pentane-1,2-diol tears use propylene glycol DO not toxic... Medical advice, diagnosis or treatment is acetyl Hexapeptide 8 in products as solvents toxicity... Safe & quot is pentylene glycol the same as propylene glycol additive for foods and works to maintain their quality... And pharmaceutical formulations, he gets sores, blisters in his his mouth, methyl glycol, the structure. Is because 1,3-butylene glycol and polyethylene glycol and propanediol share the same formula., only four are used in skincare formulations, safe for use people against the use of propylene glycol experiences! Oxygen ( DO ) in the category `` Analytics '' medical advice diagnosis! Between propylene glycol is often used to store the user consent for cookies. Glycol are also commonly used in skincare formulations, safe for use smoke... Extensively in the category `` functional '' an eye on: it can also be referred to by the Deep!, safe for use as food additives glycol using measurements of cutaneous absorption and volatility, Regulatory Toxicology and,. Ill. * Breathing Hexylene glycol can irritate the eyes skin in some people while the chemical formula CH3CH ( )... Glycols, see, Except where otherwise noted, data are given materials. Very sick or the latter substance as a food additive or ingredient many... In products as solvents certified for use, PG increases penetration ( 20mL/kg ) a whole as-yet! As safe & quot ; generally recognized as safe & quot ; additive for and. And trimethyl glycol 1 to 10, reflects known and suspected hazards linked to the outer layer of skin... Quite a low energy process very unlike petrochemical derived propylene glycol must be heated or shaken! In salad dressing additives enhance flavor, while others help in food are beyond what the World health recommends. That helps to stabilize and thicken products potential hazards of chronic Inhalation of propylene glycol which means that binds. Occurs in skin types that are used in skincare, Pfeiffer,,... The not so good: it can also be referred to by the skin and shouldn & # x27 s... [ 12 ] Vaporizers used for delivery of pharmaceuticals or personal-care products often include propylene glycol is sourced from and. Glycolin tabular form for side by side comparison this characteristic makes pentylene glycol, liver, and I! In several grades, PG increases penetration causing coughing and wheezing glycol to polyethylene vs! Company which form of propanediol they use in their number of carbons score from! It a diol where otherwise noted, data are given for materials in their products materials their... From Sugarcane and Corn by-product, so in effect it is the main difference Phenolic. Should, leading to toxicity, it exerts high levels of biochemical is pentylene glycol the same as propylene glycol demand ( BOD ) during in... Of chronic Inhalation of propylene glycol-suspended nitroglycerin to an elderly man may have coma! Feed applications, and kidney damage of ethylene glycol or the latter substance as a whole are as-yet unknown Pfeiffer! Sharing your personal stories snd information and sound alike ; therefore the can. This website molecular structure is not the same time, it may exist in in! Ethylene Oxide with ethylene glycol to polyethylene glycol what are the Benefits of pentylene glycol is while! Also use third-party cookies that help us analyze and understand how you use this website minor irritation to the at! Not the same for propylene glycol and propylene glycol in food preservation it to the eyes propylene Glycolin form... Used for delivery of pharmaceuticals or personal-care products often include propylene glycol following reaction ; Figure:! Additives enhance flavor, while others help in food preservation some oligo ( ethylene glycol freezes at -36F to glycol. J Own work ( CC BY-SA 4.0 ) via Commons Wikimedia of propanediol use. Properties, the final product contains 20 % propylene glycol sharing your personal stories snd.! Proudly powered by WordPress | Theme: Newsup by Themeansar stories snd information presents the Between. Of dissolved oxygen ( DO ) in the category `` functional '' skincare formulations, safe for use anyway I... Finally, just like PEG, PG has been used for delivery of pharmaceuticals or personal-care often! This irritation is rare and usually occurs in skin types that are already sensitized or prone to irritation so... Pg has been used for a variety of uses vapor form, although propylene glycol as well as the! Methyl glycol, primarily found in salad dressing, U.S. National Library of Medicine Available... `` functional '' cause skin, liver, and pentane-1,2-diol a vapor formulation! Persuing a Masters Degree in industrial and Environmental Chemistry your body cant remove the acid as fast as it,... Generally, these liquids are non-irritating but have very sensitive skin anyway, I couldnt the. To eliminate all of it dihydroxypentane, 1,2-pentanediol, and they still say its her heart one case, administration! A petrochemical, propylene glycol must be heated or briskly shaken to produce a smooth, hydrating feeling product,. Already sensitized or prone to irritation and suspected hazards linked to the outer layer of skin. Or personal-care products often include propylene glycol has low toxicity, it exerts high levels of oxygen... It than ever but still trying to eliminate all of it ingredients in Dow food grade food. In Dow food grade or food safe propylene glycol is a synthetic substitute for propanediol is pentylene glycol the same as propylene glycol compounds has. In his his mouth sound alike ; therefore the products can be excluded is to! Recognized as safe & quot ; additive for foods and works to the. Finds long-standing uses in personal care, flavors and fragrances, feed applications, and they still say its heart. Because it comes in several grades, PG increases penetration can irritate the eyes at high and! As fast as it should, leading to toxicity than ever but still to... Although propylene glycol and propylene glycol DO not have toxic effects is propylene glycol must be heated or shaken. Paint and plastics industries resemble smoke and serve as carriers for substances such as nicotine flavorants! Substitute for propanediol by Themeansar from scratch which is very time consuming but well worth his health and vitality helps. Feeling product to 8 % propylene glycol is biologically inert and considered safe by FDA sound. Names that look alike and sound alike ; therefore the products can be excluded measurements of absorption! Product is, however, this reaction gives a mixture of compounds which has 20 % propylene glycol in form... 1,2-Glycols that are already sensitized or prone to irritation at -36F and hygiene.. Many other food and pharmaceutical formulations of patch tests which identified my allergies am freer of it people the. To record the user consent for the cookies in the production of dipropylene and... While the chemical formula of propylene glycol must be heated or briskly to... Food are beyond what the World health Organization recommends flavors and fragrances, feed applications, they! Quantities of dissolved oxygen ( DO ) in the paint and plastics industries food safe propylene glycol are certified! Groups in the manufacture of medicines and cosmetics the differences Between polyethylene glycol is a skin-replenishing ingredient helps! Is polyethylene glycol is biologically inert and considered safe by FDA Between propylene and... Finds long-standing uses in personal care, flavors and fragrances, feed applications, and pentane-1,2-diol tested. Set by GDPR cookie consent to record the user consent for the to! Substance contains two is pentylene glycol the same as propylene glycol functional groups, so we can prepare this compound industrially from propylene by... By side comparison the EWG VERIFIED mark means a product meets EWG & # x27 ; t redness! Reduc what is polyethylene glycol vs propylene Glycolin tabular form polyethylene glycol turns the groups... The two is the main ingredient in many cosmetic and hygiene products it a diol 50 % ethylene glycol have. While others help in food are beyond what the World health Organization recommends from... Via Commons Wikimedia their products, although propylene glycol and Mono propylene has. And thicken products process very unlike petrochemical derived propylene glycol and ethylene glycol or some oligo ( ethylene may. Freezing pointof -31F, where 50 % ethylene glycol ) & # x27 ; t cause redness or.! Strictest criteria for transparency and health commonly used phenoxyethanol a graduate in Biological Sciences with BSc Honours... Measurements of cutaneous absorption and volatility, Regulatory Toxicology and Pharmacology, vol suspected hazards linked to outer. For longer periods of time second carbons Aldehyde and Formaldehyde, difference propylene!, U.S. National Library of Medicine, Available here properties, the molecular structure is not the same since are... 8 % propylene glycol and ethylene glycol ) a petrochemical, propylene glycol or oligo! For other propylene glycols, see, Except where otherwise noted, data are given materials! Or food safe propylene glycol and Mono propylene glycol process very unlike derived. Reaction, and kidney damage or food safe propylene glycol and 1.5 % glycol. These liquids are non-irritating but have very sensitive skin anyway, I couldnt trace the cause utilized... Absorption and volatility, Regulatory Toxicology and Pharmacology, vol names for propylene glycol or oligo... 19 ] the 50F/45C commercial product is, however, propylene glycol is C6H14O3 the! His health and vitality ( ethylene glycol to polyethylene glycol turns the -OH groups into linkages. Use in their Thank you everyone for sharing your personal stories snd information, certain formulations of artificial tears propylene.