Petrochemical-Derived Ingredients: Why They Matter
Many common ingredients in cosmetics and even eye drops are derived from petroleum (crude oil). These petrochemical-based ingredients are widely used because they can be effective and inexpensive. Health authorities generally consider them safe for use when properly refined, but some people – especially those with very sensitive skin or eyes, or who prefer “natural” products – may choose to avoid them. Petroleum is also a non-renewable resource, so environmentally conscious consumers often seek plant-based alternatives.
Our promise: When a brand confirms that none of its ingredients are petroleum-derived, we highlight this in the EFR (our product rating system) to help you easily identify such products. This is part of our commitment to transparency for ingredient-conscious users.
Common Petrochemical Ingredients
Below is a list of some common ingredients in cosmetics and eye-care products that are petrochemical-derived. We indicate whether they are always from petroleum sources or if plant-derived versions might exist (though not commonly used):
| Ingredient |
Petrochemical Origin |
| Mineral Oil / Petrolatum (e.g. Vaseline) |
Always petrochemical – a byproduct of refining crude oil. |
| Paraffin Wax |
Always petrochemical – derived from petroleum or shale oil (a wax fraction from crude oil). |
| Propylene Glycol* |
Often petrochemical – usually made from petroleum or natural gas, though plant-based versions do exist. |
| Polyethylene Glycols (PEGs) (PEG-X) |
Always petrochemical – synthetic polymers made from petroleum-derived ethylene oxide. |
| Polysorbates 20/60/80 |
Often petrochemical – created by reacting sorbitol (often plant-based) with ethylene oxide (petroleum-derived). |
| Dimethicone (silicone oil) |
Always petrochemical – a man-made silicone polymer made from silica plus fossil-based chemicals; there is no naturally occurring version. |
| Cyclopentasiloxane (silicone) |
Always petrochemical – another synthetic silicone fluid, not found in nature and produced chemically. |
| Isopropyl Myristate |
Often petrochemical – an ester of isopropyl alcohol (petroleum-derived) and myristic acid (from plant or animal fats). |
| Ethylhexyl Palmitate (Octyl Palmitate) |
Often petrochemical – an ester of 2-ethylhexanol (petroleum-derived) and palmitic acid (often from palm or coconut oil). |
| Synthetic Fragrance |
Usually petrochemical – most synthetic fragrance compounds are derived from petrochemicals (as solvents or aroma chemicals). |
| Poloxamers (e.g. Poloxamer 407) |
Always petrochemical – synthetic block copolymers of ethylene oxide and propylene oxide (both petro-derived). |
| Caprylyl Glycol |
Often petrochemical – typically produced by chemical synthesis, though it can also be sourced from coconut components. |
| Acrylates Copolymer (plastic-based thickener) |
Always petrochemical – a synthetic acrylic polymer (essentially a microplastic) derived from petrochemical monomers. |
| TEA / DEA (Triethanolamine / Diethanolamine) |
Always petrochemical – produced by reacting ammonia with ethylene oxide (from petroleum). |
| Butylene Glycol* |
Often petrochemical – usually made from petrochemical acetaldehyde, though it can also be fermented from plant sugars. |
Note: Ingredients marked “Often petrochemical” can sometimes be made from plant-based feedstocks, but these natural versions are less common due to higher cost. For example, companies can produce propylene glycol or butylene glycol from corn or vegetable glycerin, but most products still use the petroleum-derived kind. Likewise, the majority of synthetic fragrance chemicals used in the market are petro-derived, whereas “natural fragrance” would come from plant essential oils.
Even many eye drops and ointments contain petroleum-based ingredients. For instance, some dry-eye lubricating drops and ointments use mineral oil or white petrolatum as emollients, and include surfactants like Polysorbate 80 to help oils mix with water. We provide this information so you can make an informed choice. If you prefer to avoid petrochemical-derived ingredients, look for products or brands that use plant-derived alternatives – and watch for our EFR highlight indicating no petrochemical ingredients.