Peg-75 Meadowfoam Oil: 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-75 Meadowfoam Oil?

Peg-75 Meadowfoam Oil is a water-compatible form of meadowfoam seed oil that has been reacted with roughly 75 units of ethylene oxide. The base oil comes from the seeds of Limnanthes alba, a flowering plant grown mainly in the Pacific Northwest of the United States. Natural meadowfoam oil is prized for its long chain fatty acids, which give it exceptional stability against oxidation. By attaching polyethylene glycol (PEG) chains to the oil, chemists create a clear, fluid ingredient that mixes easily with both water and oil, broadening its use in modern formulas.

Although meadowfoam farming began in the 1970s as a potential replacement for whale oil, the cosmetic industry only started embracing Peg-modified versions in the 1990s when formulators needed gentle alternatives to traditional surfactants. Production involves cold-pressing the seeds to obtain the crude oil, purifying it, then performing controlled ethoxylation where ethylene oxide molecules are added. The resulting Peg-75 Meadowfoam Oil keeps the skin-loving lipids of the original oil while gaining the ability to dissolve in water-based systems.

Its balanced character makes it popular in facial cleansers, makeup removers, micellar waters, hydrating serums, lightweight lotions, hair conditioners and rinse-off masks. Because it can both soften skin and help oil and water stay blended, it shows up in everything from anti-aging creams to gentle baby shampoos.

Peg-75 Meadowfoam Oil’s Cosmetic Benefits/Uses

This multitasking ingredient brings several perks to a formula thanks to its unique structure.

  • Emollient: Leaves a soft, cushiony feel on skin by filling in tiny gaps between cells, which helps skin look smooth and feel comfortable without a greasy aftertouch.
  • Cleansing: Lifts away dirt, makeup and excess sebum while respecting the skin barrier, making it ideal for mild facial washes and micellar solutions.
  • Emulsifying: Acts as a bridge between oil and water so creams stay stable and textures remain silky, reducing the need for heavier synthetic emulsifiers.
Who Can Use Peg-75 Meadowfoam Oil

Peg-75 Meadowfoam Oil is generally suitable for all skin types. Its light texture works well for oily and combination skin while the replenishing fatty acids help relieve dryness and flakiness in normal to dry skin. Sensitive skin usually tolerates it because the ingredient has a mild profile and a low likelihood of triggering irritation. No specific skin type is considered incompatible.

The oil is sourced from a plant so it is appropriate for vegans and vegetarians. Although the ethoxylation step relies on synthetic chemistry, no animal derived materials are involved in the process.

Current safety data shows no known issues for women who are pregnant or breastfeeding when the ingredient is used topically at the concentrations found in cosmetics. This is not medical advice and anyone who is pregnant or nursing should ask a healthcare professional to review their skincare routine.

Peg-75 Meadowfoam Oil does not make skin more sensitive to sunlight and it contains no photo reactive compounds. It is also odorless which makes it a useful option for people who avoid fragrance allergens.

Potential Side Effects/Adverse Reactions

Reactions to topical Peg-75 Meadowfoam Oil can vary from person to person. The points below cover potential side effects yet most users will not notice any problems when the ingredient is used as intended.

  • Contact irritation – Rare stinging or redness in very reactive skin
  • Allergic dermatitis – Extremely uncommon sensitization to meadowfoam seed proteins that remain after processing
  • Eye discomfort – Mild temporary burning if a high concentration product accidentally enters the eyes
  • Scalp buildup – Infrequent heavy feeling on hair if overused in leave-on products

If any unexpected irritation or discomfort occurs discontinue use and consult a qualified healthcare provider.

Comedogenic Rating

Rating: 1/5

Peg-75 Meadowfoam Oil keeps the low clogging profile of natural meadowfoam seed oil yet its PEG side chains make it even more water friendly. That means it rinses away more easily and is less likely to sit in pores or form an occlusive film that traps dead skin. Because it is lightweight, non greasy and highly stable against oxidation, the chance of it oxidizing on skin and triggering breakouts is minimal.

Suitable for acne prone or breakout-prone skin in most cases.

As with any PEGylated ingredient, final comedogenicity can vary depending on the full formula. A product heavy in waxes or butters could still clog pores even if Peg-75 Meadowfoam Oil by itself is practically non comedogenic.

Summary

Peg-75 Meadowfoam Oil acts as an emollient, a mild cleanser and an emulsifier. Its long chain fatty acids cushion the skin surface for a soft feel, the PEG portion helps lift oils and dirt when water is added, and its dual water-oil affinity holds formulas together so lotions stay smooth.

It is not the hottest buzzword in beauty but formulators like it for its reliability, silky slip and plant-derived story, so you will find it quietly working behind the scenes in cleansers, micellar waters, light creams and conditioners.

Shelf-stable, non irritating for most users and biodegradable, the ingredient enjoys a solid safety record. Still, everyone’s skin is different so try a small patch the first time you use a product that contains it just to be sure it agrees with you.

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