C28-36 Olefin: 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: June 24, 2025
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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is C28-36 Olefin?

C28-36 Olefin is a blend of long-chain hydrocarbons made up of linear alpha olefins that contain 28 to 36 carbon atoms. These molecules are most often produced from petroleum or natural gas through a series of steps that turn smaller hydrocarbon fragments into uniform long chains, then isolate the desired carbon lengths. Advances in refining during the 1970s made it possible to create highly purified, odor-free olefins, which opened the door for their use in personal care. Today the ingredient is valued as a lightweight alternative to heavier mineral oils.

The manufacturing process usually starts with the cracking of waxy feedstocks to create shorter olefins. These are then assembled through controlled reactions that grow the chain to the target length. Afterward, the material is distilled and filtered to remove impurities, leaving a clear, stable liquid.

Because it spreads smoothly and leaves a soft finish, C28-36 Olefin shows up in moisturizers, face and body lotions, lip balms, foundations, sunscreens, cleansing balms and overnight masks. It can also be blended into anti-aging serums and soothing after-sun gels where a non-greasy feel is important.

C28-36 Olefin’s Cosmetic Benefits/Uses

In formulas, C28-36 Olefin serves one main purpose that brings several practical benefits.

Skin conditioning: This ingredient forms a thin, breathable layer on the surface of the skin that helps trap moisture, leaving skin feeling soft and supple without a heavy or oily residue. Its smooth glide improves spreadability so creams apply more evenly, and it can boost the richness of a product while keeping the texture light.

Who Can Use C28-36 Olefin

C28-36 Olefin suits most skin types including normal, dry, combination and even sensitive skin because it is inert and non-sensitizing. Very oily or acne-prone skin may prefer lighter silicones or esters though most people find the ingredient light enough that it does not feel greasy or occlusive.

The material is synthesized from petroleum or natural gas so no animal-derived substances are involved. That makes it acceptable for vegans and vegetarians, provided the finished product has not been tested on animals.

C28-36 Olefin is generally regarded as safe for people who are pregnant or breastfeeding since it sits on the surface of the skin rather than being absorbed. This is not medical advice and anyone who is pregnant or nursing should show any skincare product to a qualified physician before use just to be safe.

The ingredient does not increase photosensitivity and can be used morning or night without extra sun precautions beyond regular sunscreen habits.

Potential Side Effects/Adverse Reactions

Side effects from topical C28-36 Olefin vary from one individual to another. The following points list potential reactions, though they are uncommon when the ingredient is formulated correctly and used as directed.

  • Mild irritation – people with extremely reactive skin could notice slight redness or itching
  • Temporary clogged pores – in very oily skin the occlusive film might contribute to congestion if layered with heavy products
  • Allergic contact dermatitis – rare sensitivity to trace impurities could lead to a rash

If any discomfort or adverse reaction occurs stop using the product and consult a healthcare professional.

Comedogenic Rating

Rating: 1/5

C28-36 Olefin sits on the skin surface rather than penetrating pores and its long, straight chains resist oxidation that could thicken or harden in follicles. These traits keep the clogging potential low, though not quite zero because any occlusive film can trap existing debris if a routine is already heavy. Most people prone to acne tolerate it well but those who break out easily might prefer to limit how many other rich ingredients are layered with it.

Purity is important: highly refined grades show fewer breakout reports than grades that contain trace waxy residues, so quality of the finished formula can influence real-world performance.

Summary

C28-36 Olefin is used mainly as a skin-conditioning agent that boosts softness, locks in moisture and improves the slip of creams and balms without leaving a greasy feel. It does this by forming an even, breathable layer that smooths rough texture and cuts transepidermal water loss.

While not a headline ingredient like hyaluronic acid or niacinamide it has carved out a steady niche in moisturizers, makeup bases and cleansing balms where formulators want mineral-oil-like benefits in a lighter package.

Safety data show very low irritation, sensitization and comedogenicity, making it suitable for most skin types including sensitive skin. As with any new product, do a quick patch test first to see how your own skin responds.

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