Peg-6 Sorbitan Oleate: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: July 1, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Peg-6 Sorbitan Oleate?

Peg-6 Sorbitan Oleate is a plant-derived ingredient created by combining sorbitan (a sugar alcohol from corn syrup) with oleic acid found in olive oil and then attaching six units of ethylene oxide. The result is a waxy liquid that mixes well with both water and oil. Chemists first explored this family of ingredients in the 1950s while searching for safer alternatives to soap in creams and lotions. Today large-scale production involves heating sorbitol to form sorbitan, reacting it with purified oleic acid, then running the blend through a controlled ethoxylation step that adds the polyethylene glycol (PEG) portion. The finished material is filtered and tested for purity before it reaches cosmetic labs.

Because it helps oil and water stay blended, Peg-6 Sorbitan Oleate shows up in many product types: facial cleansers, sheet masks, lightweight moisturizers, makeup removers, sunscreens and leave-on hair conditioners. Its mild nature and ability to create stable, smooth textures make it a favorite in both rinse-off and leave-on formulas.

Peg-6 Sorbitan Oleate’s Cosmetic Benefits/Uses

The main role of Peg-6 Sorbitan Oleate is emulsifying. By holding oil and water together it keeps creams from separating, improves spreadability, helps active ingredients distribute evenly across the skin and extends a product’s shelf life.

Who Can Use Peg-6 Sorbitan Oleate

Peg-6 Sorbitan Oleate is gentle enough for dry, normal, combination and oily skin and is generally well tolerated by sensitive complexions thanks to its low irritation profile. Those with a known allergy to PEGs or sorbitan derivatives should avoid it, otherwise the ingredient rarely poses issues for specific skin types.

Because it is produced from plant sources and contains no animal-derived constituents Peg-6 Sorbitan Oleate is suitable for vegetarians and vegans.

Current safety assessments show no specific risks for pregnant or breastfeeding women when the ingredient is used at cosmetic levels. This is not medical advice; anyone who is pregnant or nursing should double-check any skincare product with a qualified healthcare professional.

The molecule does not make skin more sensitive to the sun and has no reported phototoxic or photoallergic effects. It can be worn during daytime without increasing the need for extra sun protection beyond the usual daily SPF recommendation.

Potential Side Effects/Adverse Reactions

Responses to topical Peg-6 Sorbitan Oleate differ from one individual to another. The points below list potential reactions that could occur even though most users experience none of them when the ingredient is properly formulated and used as intended.

  • Mild skin irritation such as redness or stinging in very sensitive individuals
  • Allergic contact dermatitis in people with a pre-existing allergy to PEG compounds or sorbitan esters
  • Eye irritation if the product accidentally gets into the eyes, particularly with higher concentrations
  • Dryness or slight barrier disruption when used at levels far above those normally found in cosmetics
  • Trace impurity concerns (ethylene oxide or 1,4-dioxane) if the ingredient is sourced from a supplier that does not meet purification standards

If any unwanted reaction occurs stop using the product and consult a pharmacist or healthcare provider for guidance.

Comedogenic Rating

Comedogenic rating: 1 out of 5. Although the ingredient contains an oleic acid backbone, the addition of sorbitan and six PEG units makes the molecule highly water compatible and less likely to clog pores. It sits lightly on skin, rinses away easily in cleansers and is used at low levels in leave-on formulas, so the practical risk of blackheads or whiteheads is minimal. Suitable for acne-prone or breakout-prone skin in most cases. People who find olive-derived ingredients problematic might still prefer caution but widespread reports of pore blockage are rare.

Summary

Peg-6 Sorbitan Oleate is an emulsifier that keeps oil and water mixed, stabilises textures, improves spreadability and helps active ingredients distribute evenly across the skin. It works by positioning its water-loving PEG portion in the aqueous phase while its oil-loving sorbitan oleate tail anchors into oils, creating a bridge that prevents separation.

The ingredient shows up in a wide range of mainstream cleansers, lotions, sunscreens and hair products thanks to its reliability and gentle feel, though it is not as famous as newer multi-function surfactants.

Current safety data rate it as low risk with only isolated cases of irritation or allergy. As with any cosmetic component it is wise to patch test a new product containing Peg-6 Sorbitan Oleate to confirm personal compatibility.

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